Synthetic resins or natural rubbers -- part of the class 520 series inventions 04/06

20060089468 - Method of preparing a treated support: This invention relates to a method of preparing a supported catalyst comprising the steps of contacting a solid titanium or solid aluminum compound with a supported catalyst compound, and heating the combination to at least 150° C....

20060089467 - Polymerization processes: The invention provides for polymerization processes to produce polymers utilizing boiling pool reactor systems and diluents including hydrofluorocarbons....

20060089469 - Hydroxy diphosphines and their use in catalysis: The invention relates to novel asymmetrical, chiral hydroxy diphosphines and to derivatives of general formula (I), in addition to their use as catalysts, in particular for enantioselective syntheses....

20060089471 - Process for producing 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...

20060089470 - Supported metallocene catalysts and their use in producing stereospecific polymers: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, specifically alpha olefins, particularly the polymerization of propylene to produce syndiotactic or isotactic polypropylene. The supported metallocene catalyst comprises...

20060089472 - Process for the preparation of low branch content polybutadiene: A process for the preparation of low branch content polybutadiene comprising: (a) a first butadiene polymerisation stage; (b) treatment of the polymer solution obtained upon completion of stage (a) with a coupling agent selected from: (i) polyunsaturated natural oils; (ii) butadiene and/or isoprene oligomers; (iii) butadiene and/or isoprene co-polymers with...

20060089473 - Diol (meth) acrylate compound having urethane bond, method for producing the same, and polymer thereof: p

20060089474 - Apparatus for continuous polymerization and method for continuous polymerizing using the same: An apparatus for continuous polymerization with a simple constitution to produce a polymer having a high quality, as well as a method for producing the polymer using the apparatus, are provided. The apparatus comprises a vessel; a means for supplying a monomer to the vessel; a means for supplying a...

20060089475 - Ethylene-alpha-olefin copolymer: A copolymer having monomer units derived from ethylene and monomer units derived from an α-olefin of 3 to 20 carbon atoms, a density of 906 to 970 kg/m3 and an activation energy of flow of 50 kJ/mol or more, and satisfying specific relations among a melt complex viscosity, a melt...

20060089476 - Ethylene-alpha-olefin copolymer: An ethylene-α-olefin copolymer having monomer units derived from ethylene and monomer units derived from an α-olefin of 3 to 20 carbon atoms, a density of 906 to 970 kg/m3, an activation energy of flow of 50 kJ/mol or more and a heat quantity of fusion of a cold xylene soluble...

20060089477 - Ethylene-alpha-olefin copolymer, resin composition containing same and biaxially stretched film thereof: An ethylene-α-olefin copolymer resin having a melt index of 0.5 to 2.0 g/l0 minutes and a density of 0.905 to 0.920 g/cm3 and showing such a temperature raising elution fractionation pattern that the amount of fractions corresponding to a high density polyethylene is 8 to 25% of the total elution...

20060084768 - Method and apparatus for producing conductive polymer: The method for manufacturing electrically conductive macromolecules of the present invention is provided by reacting at least a monomer and an oxidizing agent to obtain electrically conductive macromolecules by a chemical polymerization method, the method including reacting the monomer and the oxidizing agent at least in a polymerizing vessel that...

20060084769 - Process for preparing 1-butene cololymer and copolymer thereof: A process for preparing isotactic 1-butene copolymers containing up to 30% by mol of units derived from of one or more alpha olefins of formula CH2═CHZ, wherein Z is a C3C20 hydrocarbon group comprising contacting 1-butene and one or more of said alphaolefins under polymerization conditions in the presence of...

20060084770 - Polymerization processes: The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent....

20060084771 - Method of preparing modified diallyl-n,n-disubstituted ammonium halide polymers: A method of preparing a modified diallyl-N,N-disubstituted ammonium halide polymer and use of the polymer in combination with one or more high molecular weight, water soluble cationic, anionic, nonionic, zwitterionic or amphoteric polymers for increasing retention and drainage in a papermaking furnish....

20060084772 - Method of preparing modified diallyl-n,n-disubstituted ammonium halide polymers: A method of preparing a modified diallyl-N,N-disubstituted ammonium halide polymer and use of the polymer in combination with one or more high molecular weight, water soluble cationic, anionic, nonionic, zwitterionic or amphoteric polymers for increasing retention and drainage in a papermaking furnish....

20060084773 - High-softening-point copolymer, process for producing the same, and product of hydrogenation thereof: Provided are a high melting point copolymer prepared by heat-polymerizing cyclopentadiene and/or dicyclopentadiene and a vinyl-substituted aromatic compound, wherein a use amount of a solvent in heat polymerization is 0.1 time or more and less than 0.5 time based on the mass of the whole monomers, and the copolymer has...

20060084774 - Ph-sensitive methacrylic copolymers and the production thereof: The present invention provides novel multi-functional methacrylic copolymers that exhibit cationic pH-sensitive behavior as well as good water solubility under acidic conditions. The copolymers are constructed from tertiary amine methacrylates and poly(ethylene glycol) containing methacrylates. The copolymers are useful as gene vectors, pharmaceutical carriers, and in protein separation applications....

20060079652 - Mid-range vinylidene content polyisobutylene polymer product produced by liquid phase polymerization process: A mid-range vinylidene content PIB polymer composition made by a liquid phase polymerization process conducted in a loop reactor at a temperature of at least 60° F. using a BF3/methanol catalyst complex and a contact time of no more than 4 minutes. At least about 90% of the PIB molecules...

20060079653 - Photochromic monomers, photochromic polymers based on the same, photochromic recording media comprising the photochromic polymers, and 3d read/write optical memory comprising the recording media: Photochromic monomers and methods for preparing these photochromic monomers, photochromic polymers based on these photochromic monomers and methods for preparing these photochromic polymers, as well as the use of these photochromic polymers in a polymer binder as a two-photon recording medium for an optical 3D memory and photoswitches of optical...

20060079654 - Olefin copolymers containing hydrolytically cleavable linkages and use thereof in degradable products: The invention is directed to olefin copolymers composed of nonhydrolyzable monomer units and hydrolyzable monomer units, the latter resulting from copolymerization of monomers containing a linkage that is hydrolytically cleavable in the presence of aqueous base or aqueous acid. Generally, the hydrolyzable monomer units represent a significant fraction of the...

20060079655 - Polymers with new sequence distributions: The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and an alkylstyrene, preferably methylstyrene, even more preferably para-methylstyrene, with new sequence distributions. The copolymer may...

20060079656 - Olefin polymers, method of making, and use thereof: The present invention is directed to PE-100 ethylene copolymers and pipe made thereof having a Tabor abrasion between about 0.01 and about 0.001 grams lost/1000 revolutions. These copolymers are formed by contacting ethylene with at least one mono-1-olefin comonomer having from 2 to about 10 carbon atoms per molecule in...

20060074204 - Process for the (co-)polymerisation of olefins in the gas phase: Process for the polymerisation or copolymerisation in the gas phase of olefin(s) by bringing the said olefins(s) into contact, under polymerisation or copolymerisation conditions in a reactor in which the polymer or the copolymer is maintained in a fluidized bed and/or agitated with mechanical stirring, with a catalyst system, which...

20060074205 - Production of broad molecular weight polyethylene: The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or...

20060074206 - Catalyst for polymerization of norbornene: This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing norbornene-functional monomers into polynorbornene-functional polymers. It has been further discovered that this catalyst system is more effective in polymerizing certain...

20060074207 - Synthetic polyisoprene rubber: The neodymium catalyst system prepared by the technique of this invention can be used in the polymerization of isoprene monomer into synthetic polyisoprene rubber having an extremely high cis-microstructure content and high stereo regularity. This polyisoprene rubber will crystallize under strain and can be compounded into rubber formulations in a...

20060074208 - Biomedical devices containing amphiphilic block copolymers: This invention relates to wettable biomedical devices comprising amphiphilic block copolymers. The amphiphilic block copolymers are useful as internal wetting agents for biomedical applications, such as implantable devices, ophthalmic devices and in one embodiment, contact lenses....

20060074210 - Adhesives: There are disclosed star shaped thermoplastic elastomers made of acrylic block copolymers obtained by transition metal catalysed radical polymerisation. The elastomers comprise core arms obtained from monomers or mixture of monomers, whose Tg is from about −65° C. to about −20° C., and of shell arms obtained from monomers or...

20060074211 - Ring-opened azlactone telechelic polymer: A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an ethylenically unsaturated monomer having a reactive ring-opened azlactone functional group. A telechelic polymer that is the reaction product of these components is...

20060074209 - Uv-cure adhesive composition for optical disk, cured material and goods: A UV-cure adhesive for bonding an optical disk substrates one or both of which having a semitransparent reflective film of silver, a silver alloy, or the like. The thus produced bonded optical disk has a high durability equivalent to those of optical disks using a conventional gold semitransparent reflective film...