REGISTER now for FREE 
|
FREE patent keyword monitoring and additional FREE benefits. REGISTER now for FREE
|
|
|
Synthetic Resins Or Natural Rubbers -- Part Of The Class 520 Series > Synthetic Resins Or Natural Rubbers > Ion-exchange Polymer Or Process Of Preparing > Cellular Product Derived From A -n=c=x Containing Reactant Wherein X Is A Chalcogen Atom Cellular Product Derived From A -n=c=x Containing Reactant Wherein X Is A Chalcogen AtomCellular Product Derived From A -n=c=x Containing Reactant Wherein X Is A Chalcogen Atom 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.06/08/06 - 20060122286 - Foamed isocyanate-based polymer, a mix and process for production thereof The invention relates to a foamed isocyanate-based polymer derived from a reaction mixture comprising an isocyanate, an active hydrogen-containing compound, a blowing agent and a highly branched polysaccharide which is derivatized to provide a hydrophobicity which renders it compatible with a polyether polyol with which the underivatized polysaccharide is incompatible. ... 04/13/06 - 20060079590 - Polyurethane foam and process for producing the same A polyurethane foam is obtained by mixing a polyol component and an isocyanate component under stirring to effect foaming, wherein water is used as a blowing agent in the polyol component, hydrous thermoplastic synthetic resin particles are added to at least one component of the polyol component and the isocyanate ... 04/13/06 - 20060079589 - Polyurethane foam sheet and process for layered sheet with the same A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing ... 03/30/06 - 20060069175 - Aromatic polyester polyols Aromatic polyester polyols, and foams produced therefrom, having an acid number below 3.0 mg/KOH/g, wherein the aromatic polyester polyol is the reaction product of a reaction mixture comprising an acid component, a glycol component, and a urethane catalytic activity agent comprising at least one of a non-alkoxylated aminoalcohol and a ... 03/30/06 - 20060069174 - Flame resistant polyurethane materials containing melamine-derived additives Polyurethane foam is disclosed having improved flame retardancy, charring, and intumescent properties. The foam is prepared from a reaction mixture comprising at least one isocyanate or diisocyanate, one blowing agent, one surfactant, one catalyst, and one reactive hydroxyl-terminated oligomeric liquid melamine derivative. The resulting foam provides substantial resistance to burning. ... 03/16/06 - 20060058410 - Process for making a pipa-polyol Process for preparing a polyol comprising particulate material in dispersed form by reacting an MDI-based polyisocyanate and a polyol having an equivalent weight of up to 400, the reaction being carried out in a polyol having an equivalent weight of 500 or more wherein the polyol having an equivalent weight ... 03/16/06 - 20060058409 - Method for producing rigid polyurethane foams by means of graft polyhydric alcohols The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive toward isocyanate groups, in the presence of c) catalysts, and d) blowing agents, where, among the compounds having at least two hydrogen atoms reactive toward ... 03/16/06 - 20060058408 - Isocyanate composition and its use in the preparation of expanded polyurethane with improved physico-mechanical properties Isocyanate compositions with isocyanate functionality between 2.2 and 2.9 which include: a) 20 to 80% by weight of the reaction product of methylene diphenyl isocyanate (MDI) with an ethylene oxide (EO)/propylene oxide (PO) polyether polyol of functionality 2 to 8, an average molecular weight of 200 to 6000, and an ... 03/02/06 - 20060047011 - Pur/pir rigid foams based on aliphatic polyester polyols PUR/PIR rigid foams based on aliphatic polyester polyols are produced by reacting an organic polyisocyanate with an isocyanate reactive component that includes a polyester polyol containing units derived from (1) adipic acid and (2) at least one of glutaric, succinic and sebacic acid. These foams may be produced spraying. These ... 03/02/06 - 20060047010 - Pseudo one part foam A spray polyurethane foam formed by reacting an isocyanate prepolymer composition (“A” side) with a isocyanate reactive composition encapsulated in a long-chain inert polymer (“B” side) is provided. The isocyanate prepolymer composition may contain an isocyanate prepolymer that contains less than about 1 wt % free isocyanate monomers, a blowing ... 02/16/06 - 20060035994 - Method for preparing phthalate polyester polyol-based dimensionally stable spray polyurethane foam The invention relates to methods and compositions for preparing all water blown spray polyurethane foams by reacting a polyisocyanate with a polyol blend. The polyol methods and compositions of the invention comprises a polyol component, water, a cell opening agent, and a diluent. Polyurethane foams prepared according to the invention ... 02/02/06 - 20060025493 - Low density polyurethane foam, method of producing, and articles comprising the same A method for producing a cured, low-density polyurethane foam, the method comprises frothing a reactive polyurethane-forming composition comprising an isocyanate-containing component, an active hydrogen-containing component reactive with the isocyanate-containing component, a blowing agent, a surfactant, and catalyst system, wherein the catalyst system provides for a delayed curing of the foam; ... 02/02/06 - 20060025492 - Polymer polyols with ultra-high solids contents The present invention relates to ultra-high solids content polymer polyols which have good filterability while maintaining a reasonable viscosity, and to a process for the preparation of these ultra-high solids contents polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, ... 02/02/06 - 20060025491 - Low viscosity polymer polyols The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and (C) at least one ethylenically unsaturated monomer, in the presence ... 01/19/06 - 20060014846 - Water blown polyurethane spray foam system A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications including spray roofing, insulation, etc. The preferred composition for preparing a polyurethane ... 01/05/06 - 20060004115 - Process for preparing polyurethane polyol and rigid foams therefrom from cardanol The present invention provides a process for the preparation of polyurethane polyol from cardanol, derived from cashew nut shell liquid, a renewable resource material. The polyol is made by oxidation with peroxy acid generated in-situ to give epoxidised cardanol and the said epoxy derivative is converted to the polyol in ... 12/08/05 - 20050272828 - Fine cell flexible polyurethane foam A flexible polyurethane foam having a significantly fine cell structure is produced by blowing and curing a mixture of an isocyanate-terminated prepolymer, a cross-linking agent, and a blowing component. The isocyanate-terminated prepolymer is prepared by reacting a polyol component with a polyisocyanate. The polyol component includes at least one low-molecular-weight ... 10/06/05 - 20050222290 - Low-hardness thermosetting polyurethane elastomer and production method thereof A process for the production of a low-hardness thermosetting polyurethane elastomer having a high curing rate, a low JIS A hardness of 10 to 40, a small compression set, a low moisture absorption, good dimensional stability and no bleeding property. In this process, a prepolymer formed from a difunctional polyol ... 10/06/05 - 20050222289 - Process and apparatus for producing rigid polyurethane foam The present invention provides an apparatus and a process for producing a rigid polyurethane foam involving spraying a mixture containing at least one isocyanate and at least one isocyanate reactive compound onto a supporting surface through a plurality of flat spray nozzles arranged over the supporting surface such that foam ... 10/06/05 - 20050222288 - Method of producing polishing pad-use polyurethane foam and polyurethane foam A production method comprising the step of charging prepolymer, a foaming agent and an active hydrogen-containing compound in specified amounts into a tank and foaming/mixing them for a specified time by a mixer, and the subsequent step of pouring the mixture liquid into a metal mold. ... 09/22/05 - 20050209353 - Method for producing polyurethane foamed materials having an improved long-term stability Polyurethane foams having improved long-term stability are prepared by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive with isocyanate groups, in the presence of inhibitors, by a process in which the inhibitors are encapsulated in a substance which is inert under the conditions of the ... 09/08/05 - 20050197416 - Composition for forming rigid polyurethane foam and method of preparing rigid polyurethane foam with said composition A composition for forming a rigid polyurethane foam, characterized in that a composition comprising an organic polyisocyanate, a polyol, a catalyst, a foam stabilizer, water, and if necessary, a hydrochlorofluorocarbon, as a foaming agent, a low molecular weight compound (a) having an unsaturated bond and carbonyl group which are adjacent ... 09/01/05 - 20050192369 - Process for production of polymer polyols The present invention provides a process for preparing a polymer polyol (PMPO) by alkoxylating a starter compound(s) having active hydrogen atoms in the presence of a double metal cyanide (DMC) catalyst, radical initiator(s) and optionally PMPO stabilizers and simultaneously polymerizing unsaturated monomer(s) with radical initiator(s). The polymer polyols (PMPOs) made ... 08/11/05 - 20050176839 - Low density acoustic foams based on biopolymers Rigid polyurethane foams are described. The foams are made using a prepolymer that is the reaction product of at least one polyisocyanate component, at least one hydroxy-functional acrylate component, and at least one polyol component. The prepolymer is then reacted at specified volume ratios and isocyanate indices with at least ... 08/11/05 - 20050176838 - Method for the production of polyurethane foam materials Polyurethane foams having a density of less than 200 g/l are prepared by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive with isocyanate groups, the polyisocyanates a) being aromatic di- or polyisocyanates and the compounds b) having at least two hydrogen atoms reactive with isocyanate ... 08/04/05 - 20050171225 - Polyurethane polishing pad The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of a prepolymer polyol and a polyfunctional isocyanate. The isocyanate-terminated reaction product has 4.5 ... 08/04/05 - 20050171224 - Polyurethane polishing pad The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of a prepolymer polyol and a polyfunctional isocyanate. The isocyanate-terminated reaction product has 4.5 ... 08/04/05 - 20050171223 - Modified asphaltic foam materials An asphaltic isocyanurate foam useful in roofing applications. Asphalt is liquified and mixed with a mixture of polyisocyanate. In a separate mixture, other chemicals, such as polyols, surfactant, catalyst, and blowing agent are combined. The mixtures are combined and reacted to form an asphaltic polyurethane foam. ... 07/28/05 - 20050165124 - Polyurethane foams containing carbon black A process for preparing polyurethane foam by reacting an organic polyisocyanate with a polyol in the presence of a blowing agent and carbon black as well as a polyurethane foam containing carbon black. ... 07/14/05 - 20050154072 - Method for producing rigid polyurethane foam A method to produce a rigid polyurethane foam includes emulsifying a nucleating agent by mixing the nucleating agent with a polyol and a foam stabilizer, preparing a polyol mixture by mixing water, a catalyst, and a blowing agent at one of: before the emulsifying, during the emulsifying and after the ... 07/07/05 - 20050148677 - Low k-factor rigid foam systems The present invention provides rigid polyurethane foams prepared by mixing an isocyanate with a polyol component containing an aromatic amine-initiated polyether polyol, an aromatic polyester polyol and optionally, a sucrose-based polyether polyol. The inventive foams have good properties as indicated by an initial k-factor at 35° F. of from about ... 06/16/05 - 20050131094 - Rigid foam compositions and methods employing alkyl alkanoates as a blowing agent A method for producing a rigid, closed-cell polyurethane foam having a free-rise density of from about 1.3 lbs/ft.3 to about 4 lbs/ft.3 and exhibiting a shrinkage of less than 10%, comprises mixing together an isocyanate, at least one alkyl alkanoate blowing agent and at least one polyol having a hydroxyl ... 06/09/05 - 20050124711 - Polyurethane foam A microcellular polyurethane obtainable by reacting a polyisocyanate, a polyester formed from a dimer fatty acid and/or dimer fatty diol, and a chain extender. The foam is particularly suitable for use as a component of shoe soles. ... ### FreshPatents.com Support |