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Synthetic Resins Or Natural Rubbers -- Part Of The Class 520 Series > Natural Rubber Compositions Having Nonreactive Materials (dnrm) Other Than: Carbon, Silicon Dioxide, Glass Titanium Dioxide, Water, Hydrocarbon, Halohydrocarbon > Ethylenically Unsaturated Reactant Admixed With A Preformed Reaction Product Derived From: (a) At Least One Polycarboxylic Acid, Ester, Or Anhydride; (b) At Least One Polyhydroxy Compound; And (c) At Least One Fatty Acid Glycerol Ester, Or A Fatty Acid Or Salt Derived From A Naturally Occurring Glyceride, Tall Oil, Or A Tall Oil Fatty Acid > At Least One Solid Polymer Derived From Ethylenic Reactants Only > Polymer Mixture Of Two Or More Solid Polymers Derived From Ethylenically Unsaturated Reactants Only; Or Mixtures Of Said Polymer Mixture With A Chemical Treating Agent; Or Products Or Processes Of Preparing Any Of The Above Mixtures > Solid Polymer Derived From Ethylene Or Propylene Solid Polymer Derived From Ethylene Or PropyleneSolid Polymer Derived From Ethylene Or Propylene patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/18/07 - 20070015877 - Process of producing thermoplastic polymer blends A process is described for producing a polymer blend comprising (a) a first polymer component comprising a crystalline propylene polymer and (b) a second polymer component comprising a copolymer of propylene with at least one comonomer, wherein the copolymer comprises between about 7 wt % and about 28 wt % ... 01/18/07 - 20070015876 - Microporous polyolefin film A microporous polyolefin film which comprises 5 to 95 wt. % polyethylene (A) having a viscosity-average molecular weight (Mv) of 2,000,000 or higher, a first-melting-peak signal height as determined by DSC (differential scanning calorimetry) of 3.0 mW/mg or higher, a specific surface area of 0.7 m2/g or larger, and an ... 01/11/07 - 20070010626 - Polyethylene compositions Disclosed is a polyethylene composition. The composition comprises a high molecular weight polyethylene component and a low molecular weight polyethylene component. The low molecular weight component concentrates the long chain branches. The composition of the invention exhibits excellent rheological and physical properties compared with those which concentrate the long chain ... 01/11/07 - 20070010625 - Impact resistant polyolefin compositions Olefin polymer composition comprising (by weight, unless otherwise specified): A) 60-95% of a propylene homopolymer or copoloymer having a Polydispersity Index (P.I.) value of from 4.6 to 10 and a content of isotactic pentads (mmmm), measured by 13C NMR on the fraction insoluble in xylene at 25° C., higher than ... 01/04/07 - 20070004864 - Method to enhance impact strength properties of melt processed polypropylene resins A polypropylene composition and a method to prepare the composition. The method includes the mixing and extrusion of an isotactic polypropylene, at least one impact modifying polymer, at least one primary co-agent that is a monofunctional monomer, at least one secondary co-agent which is a multifunctional monomer, oligomer, or polymer, ... 12/28/06 - 20060293462 - Heterogeneous polymer blend and process of making the same A heterogeneous polymer blend comprises a continuous phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a dispersed phase comprising particles of a second polymer different from the first polymer dispersed in said continuous phase and having an average particle size of less than 5 ... 12/28/06 - 20060293461 - Process of making a heterogeneous polymer blend In a process for producing a heterogeneous polymer blend, at least one first monomer is polymerized in a first reaction zone in the presence of a supported catalyst to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then ... 12/28/06 - 20060293460 - Heterogeneous polymer blend with continuous elastomeric phase and process of making the same A heterogeneous polymer blend comprises a dispersed phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a continuous phase comprising a second polymer different from the first polymer. The second polymer has a crystallinity of less than 20% and is at least partially cross-linked. ... 12/21/06 - 20060287436 - Multistep process for preparing heterophasic propylene copolymers A multistage process comprising the following steps: a) polymerizing propylene with optionally one or more monomers selected from ethylene and alpha olefins of formula CH2═CHT1, wherein T1 is a C2-C20 alkyl radical in the presence of a catalysts system, supported on an inert carrier comprising: i) a transition metal compound ... 12/14/06 - 20060281869 - Polystyrene blends and a method of making same Disclosed are blends of polystyrene and at least one of syndiotactic polypropylene, ethylene propylene copolymers, and styrene-butadiene-styrene triblock copolymers. These blends are prepared using solution polymerization and have unique morphologies and desirable physical properties. The blends can also be prepared with graft-promoting or crosslinking agents and rubbers to prepare modified ... 12/14/06 - 20060281868 - Thermoplastic blend compositions Described herein is a thermoplastic physical blend composition comprising (a) from 20 to 95 wt. % based on the total polymer content of a first polymer component that includes polypropylene having a melting point (Tm)≧110° C.; and (b) from 80 to 5 wt. % based on the total polymer content ... 12/14/06 - 20060281867 - Enhanced escr bimodal hdpe for blow molding applications Bimodal polyethylene compositions and blow molded bottles made therefrom are provided. In at least one specific embodiment, the composition includes at least one high molecular weight polyethylene component having a molecular weight distribution (MWD) of about 6 to about 9, a short chain branch content of less than about 2 ... 12/14/06 - 20060281866 - Resin compositions for extrusion coating A composition is disclosed which is particularly suited for use in extrusion coating. The composition comprises a polymeric material having a rheology such that the slope S of a natural log-natural log plot of loss modulus (or G″) versus storage modulus (or G′) is greater than [0.635*(melt index)+13.2]/[(melt index)+16.6], and ... 12/07/06 - 20060276594 - Very low density polyethylene blends Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and linear low density polyethylene (LLDPE) are disclosed. The polymer blends include a metallocene-catalyzed VLDPE polymer having a density of less than 0.916 g/cm3, the VLDPE polymer preferably being linear and without long chain branching, and a LLDPE polymer ... 12/07/06 - 20060276593 - High density ethylene homopolymers and blend compositions This invention relates to novel homopolymers important for applications where a high density is needed to ensure certain mechanical properties like abrasion resistance, indentation resistance, pressure resistance, topload resistance, modulus of elasticity, or morphology (for the chlorination of PE to CPE) and additional advantages such as melt processability. This invention ... 11/30/06 - 20060270802 - Optical functional film, composite film, and method for producing the same The object of the present invention is to provide an optical functional film containing a film having a structure of fine holes which contains ellipsoid or slit-like holes; and a composite film containing a film having a structure of fine ellipsoidal or slit-like holes and a metal layer on a ... 11/16/06 - 20060258811 - Polypropylene materials and method of preparing polypropylene materials A polypropylene material is prepared from a blend of polypropylene impact copolymer and high crystallinity polypropylene having less than 2 percent xylene solubles. The material is prepared by blending the polymers while they are in a molten state, and forming a film or sheet from the polymer blend. The material ... 11/09/06 - 20060252886 - Enhanced paint adhesion polymer blends According to embodiments of the present invention, a polymer blend having a high degree of paintability is disclosed having a base polymer component which may be propylene homopolymers or propylene copolymers, a polyolefin elastomer component present in any amount between about 5% and 20% by weight based upon the weight ... 11/02/06 - 20060247382 - Monolayer film for label feedstock The present invention provides a monolayer film for use as label feedstock. The present film includes a blend of polyolefin polymer and an ethylene copolymer. In a preferred embodiment, the present film also includes an antiblocking agent. ... 11/02/06 - 20060247381 - Propylene polymer compsotions and uses thereof The present invention provides a propylene polymer composition having excellent transparency, flexibility, heat resistance, scratch resistance and rubber elasticity with a good balance. The propylene polymer composition comprises 1 to 40 parts by weight of isotactic polypropylene (i) and 60 to 99 parts by weight of a propylene/ethylene/α-olefin copolymer (ii) ... 10/19/06 - 20060235159 - Transparent polyolefin compositions Disclosed herein are various compositions, including a transparent compositions comprising propylene-based polymers and a hydrocarbon resin. ... 10/05/06 - 20060223942 - Stretch wrap films A stretchable wrap film comprising a polymer blend comprising (percent by weight): I) 50 to 90% of an ethylene polymer composition comprising a recurring unit derived from an ester selected from (1) ethylenically unsaturated organic monomer of esters of unsaturated C3-C20 monocarboxylic acids and C1, to C24 monovalent aliphatic or ... 09/28/06 - 20060217490 - Polyethylene compositions having improved printability Polyethylene compositions having improved printability are provided. The compositions which are comprised of a polyethylene base resin, polyethylene glycol and polyethylene modified with carboxylic acid or carboxylic acid derivative functionality are melt blended under conditions of mixing and shear to increase their melt elasticity. ... 09/07/06 - 20060199912 - Compositions of ethylene/alpha-olefin multi-block interpolymer suitable for films Tm>−2002.9+4538.5(d)−2422.2(d)2. ... 08/31/06 - 20060194924 - Polyolefin masterbatch and composition suitable for injection molding A masterbatch composition comprising (percent by weight): A) 50%-90% of a crystalline polypropylene component comprising: AI) from 25% to 75% of a fraction having a melt flow rate MFRI of from 0.1 to 10 g/10 min.; and AII) from 75% to 25% of a fraction having a melt flow rate ... 08/24/06 - 20060189763 - Plasticized polyolefin compositions The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer. ... 08/24/06 - 20060189762 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 08/17/06 - 20060183864 - Polyolefin-based thermoplastic polymer composition Disclosed herein is a polyolefin-based thermoplastic polymer composition, in which an acrylate copolymer phase obtained by absorbing an alkyl acrylate monomer, an alkyl methacrylate monomer, a polar group-containing acrylate monomer and a polymerization initiator into a polyolefin matrix and then polymerizing the monomers is dispersed in a polyolefin phase. The ... 08/10/06 - 20060178483 - Films from polymer blends This invention relates to a film comprising a heterogeneous blend of: 1) from 60 to 99 wt % of one or more semi-crystalline polymers; and 2) from 1 to 40 wt % of one or more semi-amorphous polymers; where the bend has: an MFR of 0.5 to 100 dg/min, a ... 08/10/06 - 20060178482 - Polyethylene blend compositions Disclosed herein are various compositions, including a high density polyethylene composition, comprising: (a) a bimodal polyethylene component that includes a high molecular weight polyethylene component having a high average molecular weight (MWHMW) and a low molecular weight polyethylene component having a low average molecular weight (MWLMW), wherein the ratio of ... 07/27/06 - 20060167185 - Propylene copolymer compositions having a good low-temperature impact toughness and a high transparency The present invention relates to a propylene copolymer composition comprising A) a propylene polymer containing from 0 to 10% by weight of olefins other than propylene and B) at least one propylene copolymer containing from 5 to 40% by weight of olefins other than propylene, where the propylene polymer A ... 07/13/06 - 20060155071 - Butene-1 copolymers and process for their preparation The present invention relates to butene-1 copolymers containing up to 40% by mol of ethylene and/or propylene derived characterized by the following properties: d) Product of the reactivity ratios r1·r2≦; e) Content of butene-1 units in form of isotactic pentads (mmmm)>98%; and f) absence of 4,1 insertions of butene units. ... 06/29/06 - 20060142497 - Impact resistant polymer blends of crystalline polypropylene and partially crystalline, low molecular weight impact modifiers Polymer blends that exhibit good impact resistance comprise a crystalline polypropylene matrix and a partly crystalline copolymer impact modifier with a molecular weight lower than that of the matrix polymer. The matrix polymer can comprise any crystalline propylene homo- or copolymer. The impact modifying copolymers are characterized as comprising at ... 06/29/06 - 20060142496 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/29/06 - 20060142495 - Polypropylene compositions The present invention relates to polypropylene compositions with improved processability and to a method for the manufacture of said compositions. Said compositions are particularly suitable for extrusion coating processes. The polypropylene composition comprises from 50 to 90 wt % of polypropylene selected from propylene homopolymer, random copolymer and block copolymer, ... 06/22/06 - 20060135699 - Plasticized polyolefin compositions The present invention relates to a composition comprising 1) from 1 to 98 weight % of a first propylene polymer having a melting point of 100° C. or more, 2) from 5 to 98 weight % of a second propylene polymer having a heat of fusion of 70 J/g or ... 06/22/06 - 20060135698 - Blends of medium density polyethylene with other polyolefins It has been discovered that the properties of sheet or film materials of medium density polyethylene made using a metallocene catalyst (mMDPE) can be improved by blending the mMDPE with a second polyolefin. The second poly-olefin may be a low density polyethylene (LDPE) or a second, different medium density polyethylene ... 06/15/06 - 20060128899 - Propylene olefin copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/15/06 - 20060128898 - Alpha-olefin/propylene copolymers and their use Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/15/06 - 20060128897 - Alpha-olefin/propylene copolymers and their use Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/08/06 - 20060122334 - Blends made from propylene ethylene polymers Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the first polymer component will exhibit a statistically insignificant intramolecular ... 05/11/06 - 20060100384 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 05/11/06 - 20060100383 - Propylene olefin copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 05/11/06 - 20060100382 - Filled propylene polymer compositions having improved melt strength Filled propylene polymer compositions having significantly improved melt strength are provided. The compositions are blends of propylene polymer, mineral filler with an ethylene polymer component consisting of an ethylene plastomer and a silane-containing ethylene polymer. ... 05/11/06 - 20060100381 - Soft thermoplastic vulcanizates from very low density polyethylene copolymers The invention is directed to a thermoplastic vulcanizate composition comprising a rubber and a very low density polyethylene copolymer. Furthermore, the invention is directed to a process for making said thermoplastic vulcanizate composition and articles comprising said thermoplastic vulcanizate composition. ... 05/11/06 - 20060100380 - Slush moldable thermoplastic polyolefin formulation for interior skin A thermoplastic polyolefin composition suitable for slush molding comprising a blend of polypropylene, styrenic elastomer, linear low density polyethylene and a hydrocarbon-based process oil. Optional components include an ethylene copolymer elastomer, polymer additives such as polymer surface modifiers, powder flow additives, stabilizers and/or color pigments. The compositions exhibit a low ... 05/11/06 - 20060100379 - Transparent polyolefin compositions Disclosed herein are various compositions, including a transparent compositions with maximum haze of 50%, comprising (including): a first polymer component (FPC) that includes polypropylene having a melting point (Tm) ≧110° C.; a second polymer component (SPC) that includes a propylene polymer having 60 wt % or more units derived from ... 05/04/06 - 20060094826 - Propylene alpha-olefin polymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 04/27/06 - 20060089460 - Propylene alpha-olefin polymer blends Improved thermoplastic polymer blend compositions comprising an isotadtic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 04/13/06 - 20060079646 - Propylene polymer based compounds and heat-sealable multi-layer sheets containing them A polypropylene composition is disclosed, having a sealing initiation temperature below 80° C., and containing less than 1% by weight of monomeric units derived from ethylene with respect to the total weight of the composition, and comprising:—from 35 to 68% by weight of a random copolymer of propylene (copolymer (A)) ... 04/06/06 - 20060074194 - Polyethylene blow molding composition for producing jerry cans The invention relates to a polyethylene composition with multimodal molecular mass distribution, which is particularly suitable for the blow moulding of canisters having a volume in the range of from 2 to 20 dm3 (I). The composition has a density in the range from 0.950 to 0.958 g/cm3 at 23° ... 04/06/06 - 20060074193 - Polyethylene blow molding composition for producing large containers The invention relates to a polyethylene composition with multimodal molecular mass distribution, which is particularly suitable for the blow molding of large containers with a volume in the range of from 10 to 150 dm3 (I). The composition has a density in the range of from 0.949 to 0.955 g/cm3 ... 03/16/06 - 20060058464 - Properties of polyolefin blends and their manufactured articles A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C2-C3) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an ... 03/16/06 - 20060058463 - Flexible propylene copolymer compositions having a high transparency The present invention relates to a propylene copolymer composition comprising A) a propylene copolymer containing from 1 to 20% by weight of olefins other than propylene and B) at least one propylene copolymer containing from 5 to 98% by weight of olefins other than propylene, where the propylene copolymer composition ... 03/09/06 - 20060052544 - Method for producing a propylene-based resin composition, a propylene-based resin composition, and an injection molded article Disclosed is a method for producing a propylene-based resin composition comprising: a first step of producing a first resin composition (MB) by melt-kneading a first-propylene polymer (A-I) and a fibrous inorganic filler (B) in a weight ratio of (A-I) to (B) of from 3/7 to 7/3; and a second step ... 03/09/06 - 20060052543 - Syndiotactic propylene polymer composition A syndiotactic propylene-based polymer composition which retains the inherent features of the conventional non-crosslinked or partially crosslinked olefin-based thermoplastic elastomer, and also has excellent abrasion resistance and flexibility. The syndiotactic propylene-based polymer composition comprises 1 to 40 parts by weight of the syndiotactic polypropylene (B), and 5 to 60 parts ... 03/09/06 - 20060052542 - Polyethylene composition for producing l-ring drums The invention relates to a polyethylene composition with multimodal molecular mass distribution, which is particularly suitable for the blow molding of L-ring drums having a volume in the range of from 50 to 250 dm3 (I). The composition has a density in the range of from 0.950 to 0.956 g/cm3 ... 03/09/06 - 20060052541 - Polyolefin with improved scratch resistance and process for producing the same The present invention relates to a process for producing a polyolefin with improved surface hardness and scratch resistance, and to the use of such polyolefin. More specifically, the invention relates to a process for producing a polyolefin on the basis of a polypropylene matrix material including bimodal rubber compositions. ... 03/02/06 - 20060047079 - Ethylene (co) polymer and its use An ethylene (co)polymer of the present invention is a (co)polymer with excellent moldability and mechanical properties and either an ethylene homopolymer or a copolymer of ethylene and an α-olefin of 4 to 20 carbon atoms. The (co)polymer has methyl branches measured by 13C-NMR less than 0.1 in number per 1,000 ... 03/02/06 - 20060047078 - High density homopolymer blends A blend of ethylene homopolymers contains at least one blend component having a very low molecular weight and a narrow molecular weight distribution. The blend has surprisingly high density and low hexane extractables. The blend is suitable for the manufacture of a wide variety of plastic goods including extruded goods ... 03/02/06 - 20060047077 - Polyethylene blends This invention relates to the preparation of plastic film by the extrusion of a blend of from 95.5 to 98.5 weight % of a homogeneously catalyzed linear low density polyethylene and from 1.5 to 4.5 weight % of a selected high pressure low density polyethylene having a melt index, I2, ... 03/02/06 - 20060047076 - Solid state modification of multimodal polyethylene A method for modifying multimodal polyethylene is disclosed. The method comprises reacting a multimodal polyethylene in its solid state with a free radical initiator. The modified polyethylene has significantly increased melt strength, and it is suitable for many applications including blow molding, sheet, pipe, profile, extrusion coating, and foaming applications. ... 02/23/06 - 20060041074 - Heterogeneous/homogeneous copolymer Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the polymerization reactor contains a gradient in temperature, catalyst concentration or monomer concentration. ... 02/23/06 - 20060041073 - Polymer compositions and method of making pipes A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (“LTD”) curve. The ethylene ... 02/23/06 - 20060041072 - Impact-resistant polyolefin compositions Polyolefin compositions comprising (percent by weight): 1) 55-90% of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 α-olefin(s) and having values of MFR equal to or higher than 25 g/10 min; 2) 10-45% of a copolymer of ethylene with one or more C4-C10 α-olefin(s) ... 02/16/06 - 20060036042 - Elastic blends of semicrystalline propylene polymers and high glass transition temperature materials Compositions are provided having from 70 wt % to 95 wt % of a polymer selected from homopolymers and random copolymers of propylene and from 5 wt % to 30 wt % of a miscible hydrocarbon resin with a glass transition temperature greater than 20° C. The polymer has a ... 02/16/06 - 20060036041 - High strength bimodal polyethylene compositions Disclosed are various compositions, including but not limited to a high strength bimodal polyethylene composition having a density of 0.940 g/cc or more, the composition comprising a high molecular weight polyethylene component having a higher weight average molecular weight (HwHMW) and a low molecular weight polyethylene component having a lower ... 02/02/06 - 20060025531 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 02/02/06 - 20060025530 - Melt blended high density polyethylene compositions with enhanced properties and method for producing the same Melt blended HDPE compositions for single and dual wall corrugated HDPE pipe and associated fabricated and molded fittings and accessories having a density in the range of 0.951 to 0.954 grams per cubic centimeter, values of melt flow index according to ASTM D1238 in the range of about 0.15 to ... 01/26/06 - 20060020086 - Ionomer modified polypropylene compound for superior scratch performance,low blushing and molded in color with controllable gloss The invention pertains to a polyolefin blend, which imparts superior physical properties, which may include enhanced scratch resistance, toughness and low temperature performance, and higher flexural modulus and rigidity. The blends in this invention impart improved performance and processability over existing products. ... 01/12/06 - 20060009586 - Blends of polypropylene impact copolymer with other polymers It has been discovered that the properties of sheet or film materials of broad molecular weight distribution ethylene/propylene rubber impact-modified heterophasic copolymer (ICP) can be improved by blending the ICP with a second polyolefin. The second polyolefin may be a syndiotactic polypropylene (sPP), a random copolymer (RCP) of propylene and ... 01/05/06 - 20060004146 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 01/05/06 - 20060004145 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 12/29/05 - 20050288444 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 12/29/05 - 20050288443 - Polymer resins with improved environmental stress crack resistance Resins comprising a relatively high-density, low-molecular-weight polyethylene component and a relatively low-density, high-molecular-weight ethylene copolymer component and methods of making the resins are disclosed. The rheological polydispersity of the high-density component exceeds that of either the resin or the low-density component. The resins are valuable for making films, sheets, coatings, ... 12/22/05 - 20050282964 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 12/22/05 - 20050282963 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 12/08/05 - 20050272874 - Impact-resistant polyolefin compositions Polyolefin compositions comprising (percent by weight): 1) 55-80% of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 α-olefin(s) and having an MFR value of at least 15 g/10 min, and 2) 2) 20-45 wt % of a copolymer of ethylene with one or more ... 11/24/05 - 20050261435 - Melt blended high density polyethylene compositions with enhanced properties and method for producing the same Melt blended HDPE compositions for single and dual wall corrugated HDPE pipe and associated fabricated and molded fittings and accessories with enhanced physical properties and processing and environmental stress crack resistance (ESCR) characteristics and associated blend methods are disclosed in which virgin or recycled homopolymer and/or copolymer HDPE resin components ... 11/24/05 - 20050261434 - Thermoplastic elastomeric blends having enhanced surface appearance Disclosed is a thermoplastic elastomer blend with reduced surface defects comprising a high flow, propylene-based resin, about 0.01 to 15 weight percent of a processability modifier component, and about 1 to 50 weight percent of an ethylene-based toughening component. The blend may also contain compatibilizers, additives, and mineral fillers. ... 11/17/05 - 20050256271 - Polyethylene compositions for injection molding Polyethylene blend compositions suitable for injection molding, injection molded articles, and processes for injection molding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.1 to 3.0 g/10 min and a density of from 0.905 to 0.938 g/cm3; and a second polyethylene having a ... 11/17/05 - 20050256270 - Polymer compositions for extrusion coating Compositions suitable for use in extrusion coating are claimed. The compositions comprise a mixture of a homogeneous ethylene polymer and a heterogeneous ethylene polymer together with a high melt strength polyolefin. Film layers made from the compositions have improved “neck-in” and excellent heat seal initiation. ... 11/03/05 - 20050245689 - Hdpe resins for use in pressure pipe and related applications The present invention provides bimodal polyethylene resins in which the high molecular weight ethylene copolymer component typically has a relatively narrow molecular weight distribution, with short chain branching content being substantially constant across its molecular weight distribution. The resins of this invention are typically characterized by improved toughness and resistance ... 10/27/05 - 20050239967 - At least two-stage process for preparing propylene polymer compositions The present invention relates to a process for preparing propylene polymer compositions in in at least two-stage process wherein, in a first stage, a propylene homopolymer or a propylene copolymer comprising propylene and at least a CZ-CIO-1-alkenes other than propylene, containing at least 85% by weight of propylene, is prepared ... 10/20/05 - 20050234198 - Heterophasic copolymer and metallocene catalyst system and method of producing the heterophasic copolymer using the metallocene catalyst system Disclosed is a heterophasic polymer having a flowability over a broad range of xylene solubles content of the heterophasic polymer, a metallocene catalyst system (MCS) for producing such heterophasic polymer, and a method of producing such heterophasic polymer using the metallocene catalyst system. The MCS includes a support and a ... 10/20/05 - 20050234197 - Polyethylene pipe resins A polyethylene resin comprising from 44 to 55 wt % of a high molecular weight polyethylene fraction, and from 45 to 56 wt % of a low molecular weight polyethylene fraction; the high molecular weight polyethylene fraction comprising a linear low density polyethylene having a density of from 0.913 to ... 10/06/05 - 20050222339 - Glueable polypropylene coated ream wrap An extrudable polypropylene blend combined with resins in precise amounts so that the resultant extruded film is easier to glue and is useable with hot melt adhesives. Mixtures of polypropylene and low density polyethylene are normally considered incompatible, but the contemplated blends which include 10-30% low-density polyethylene mixed with polypropylene ... 10/06/05 - 20050222338 - Polyethylene blends with good contact transparency This invention discloses the production and use of a polyethylene composition comprising a metallocene-produced linear low density polyethylene and a multi modal high density polyethylene prepared from either a Ziegler-Natta or a metallocene catalyst system. The resulting polyethylene composition is suitable for preparing articles having improved environmental stress crack resistance, ... 09/29/05 - 20050215719 - Polyethylene compositions for rotational molding Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.4 to 3.0 g/10 min and a density of from 0.910 to 0.930 g/cm3; and a second polyethylene having a melt index of ... 09/22/05 - 20050209407 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 09/22/05 - 20050209406 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 09/22/05 - 20050209405 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 09/15/05 - 20050203252 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 09/08/05 - 20050197461 - Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 08/25/05 - 20050187352 - Polymer blend and fabricated article made from diverse ethylene interpolymers Polymer blends are disclosed that include from about 5 percent (by weight of the total composition) to about 95 percent (by weight of the total composition) of at least one first ethylene interpolymer having at least one first comonomer, and from about 95 percent (by weight of the total composition) ... 08/25/05 - 20050187351 - Method of making interpolymers and products made therefrom Olefin polymers having a comb-like structure with at least 0.3 long-chain branches per 1000 carbon atoms are disclosed. Some compositions have a melt strength of about 5 cN at 190° C., and when made into a film have a CD shrink of at least 20%. Some compositions described herein include ... 08/25/05 - 20050187350 - Method of making interpolymers and products made therefrom Olefin polymers having a melt strength of about 5 cN at 190° C., and when made into a film have a CD shrink of at least 20%. Some of the polymers have a comb-like structure with at least 0.3 long-chain branches per 1000 carbon atoms are disclosed. Some compositions described ... 08/18/05 - 20050182198 - Polypropylene resin suitable for fibers and nonwovens A blended polypropylene composition, fiber, and nonwoven articles made therefrom are provided. In one aspect, the blended polypropylene composition comprises a first polymer component having a molecular weight distribution of from 2.5 to 8, and a second polymer component having a molecular weight distribution of from 1.8 to 3. The ... 08/18/05 - 20050182197 - Propylene based retortable sealant compositions and applications The present invention relates to a retortable sealant composition comprising i) at least a copolymer of propylene and α-olefins, and ii) at least a copolymer of ethylene and alkyl acrylate, wherein the alkyl acrylate is present in an amount ranging from about 1 to less than 9 weight percent, relative ... 08/04/05 - 20050171286 - Copolymer-1 improvements in compositions of copolymers The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons. ... 07/28/05 - 20050165171 - Polyolefin compositions having high fluidity A polyolefin composition suitable for preparing films and sheets, comprising: (A) firm 15 to 40% by weight of a crystalline copolymer of propylene with at least one alpha-olefin of formula H2C═CHR1, where R1 is H or a C2-8 linear or branched alkyl, containing at least 90% by weight of propylene, ... 06/23/05 - 20050137343 - Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/23/05 - 20050137342 - Polyethylene blend films Compositions and methods are described herein for use in packaging having improved moisture vapor barrier properties. Compositions of the present invention can comprise between about 1 wt % and 30 wt % of a low molecular weight high density polyethylene and between about 99 wt % and 70 wt % ... 06/16/05 - 20050131158 - Ethylene type ternary copolymer and propylene type resin composition (i) A material is developed which modifies the rigidity, tensile elongation at break and impact resistance of resins such as a polypropylene resin when used as a modifier. The invention relates to an ethylene type ternary copolymer (A) comprising (i) an ethylene, propylene or 1-butene and a higher α-olefin having ... 06/16/05 - 20050131157 - Elastic blends comprising crystalline polymer and crystallizabe polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of ... 06/02/05 - 20050119413 - Physical blend of polyethylenes This invention discloses a process for the preparation of polyethylene resins having a multimodal molecular weight distribution that comprises the steps of: (i) providing a first high molecular weight metallocene-produced linear low density poly-ethylene (mLLDPE) resin having a density of from 0.920 to 0.940 g/cm3 and a HLMI of from ... ### FreshPatents.com Support |