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| Number | Title | Issue Date |
| 5912202 | Olefin polymerization catalyst composition having increased activity A method for preparing an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reactor a single site catalyst precursor with an activating cocatalys... | 06/15/1999 |
| 4997857 | Stabilizers for polymer/polyols A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared w... | 03/05/1991 |
| 4957944 | Urethane catalysts Certain dimethylamino alkyleneoxy isopropanols obtained by propoxylation of dimethylamino alkanols and ethers is used as a catalyst for preparing polyurethane foam.... | 09/18/1990 |
| 4954560 | Stable polymer/polyols made without macromonomer A stable polymer polyol made by the in situ polymerization of two or more monomers in a polyol blend wherein at least one monomer is a bifunctional compound containing both an isocyanate group and an ethylinically unsaturated group and wherein the polyol ... | 09/04/1990 |
| 4954561 | Stabilizers for polymer/polyols A stabilizer made by reacting a N-(polyoxyalkyl)-N-(alkyl)amine and a bifunctional unsaturated monomer and its use in the preparation of polymer polyols.... | 09/04/1990 |
| 4950694 | Preparation of polyurethane foams without using inert blowing agents A process for making low density and optionally low resilience, soft, flexible polyurethane slabstock foam having a substantially open cell structure without crushing, without requiring auxiliary inert blowing agents, by reacting under a condition which p... | 08/21/1990 |
| 4931492 | Olefin polymer compositions containing polyorganosiloxanes and the use thereof in the production of film material and polyorganosiloxanes The present invention relates to olefin polymer compositions which can be extruded into film material characterized by improved stability and optical properties. In particular, this application is directed olefin polymer compositions containing specific p... | 06/05/1990 |
| 4925890 | Process for processing thermoplastic polymers A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicon or a ... | 05/15/1990 |
| 4904705 | Polyurea foams made from N-(polyoxyalkyl)-N-(alkyl)amines Polyurea foams are prepared by the reaction of N-(polyoxyalkyl)-N-(alkyl)amines with organic isocyanates in the presence of a suitable catalyst.... | 02/27/1990 |
| 4902768 | Elastomers prepared from N-(polyoxyalkyl)-N-(alkyl)amines N-(polyoxyalkyl)-N-(alkyl)amines are reacted with isocyanates and chain extenders to form polyureas and/or polyurethane-urea elastomers.... | 02/20/1990 |
| 4902777 | N-(polyoxyalkyl)-n-(alkyl)amines N-(polyoxyalkyl)-N-(alkyl)amines are provided that are reactive with isocyanates to form polyurea and/or polyurethane urea polymers.... | 02/20/1990 |
| 4902723 | Process for producing flexible polyurethane foam using hexahydro-s-triazine catalysts Hexahydro-s-triazines, and in particular hexamethylenetetramine (HMT), can be used in high water (5.0 or more parts per hundred parts of polyol) flexible polyurethane foams formulations in place of conventional gellation catalysts to produce open celled m... | 02/20/1990 |
| 4895964 | Quarternary ammonium pendant siloxane copolymers Process for the manufacture of quaternary ammonium pendant siloxane copolymers by the reaction of epoxy pendant siloxane copolymers with a tertiary amine acid salt using a catalytic amount of a free tertiary amine as the catalyst.... | 01/23/1990 |
| 4889838 | Redistribution of organohalosilanes utilizing heat treated crystalline alumina catalysts A method of redistributing a mixture of organohalosianes, particularly methylchlorosilanes by contacting said mixture with a heat treated crystalline gamma alumina or eta alumina catalyst.... | 12/26/1989 |
| 4883825 | Process for the manufacture of low density, flexible polyurethane foams A process for the manufacture of low density flexible polymethane foam via a catalyzed reaction of a highly reactive, high ethylene oxide, high functionality polyol, a hydrophilic polyhydric compound, water and polyisocyanates.... | 11/28/1989 |
| 4882107 | Mold release coating process and apparatus using a supercritical fluid A process which comprises (i) the generation of release surfaces by application to predetermined areas of a solid surface of a solution, suspension or dispersion of a release agent and a supercritical fluid that vaporizes from the release agent, (ii) the ... | 11/21/1989 |
| 4879378 | Polysiloxanes with pendant sterically hindered phenol moiety connected to the silicon atom via a carbonylyoxy-containing link The present invention relates to polysiloxanes containing pendant sterically hindered phenol moieties. The compounds are represented by the general formula MDX D'y M.... | 11/07/1989 |
| 4873116 | Method of preparing mixtures of incompatible hydrocarbon polymers A method of preparing mixtures of incompatible hydrocarbon polymers using a novel compatibilizing system. The compatibilizing system comprises a mineral filler and certain reinforcement additives. Flame retardant compositions and articles fabricated from ... | 10/10/1989 |
| 4857583 | Process for the preparation of organopolysiloxane surfactants An improved process is provided for the preparation of siloxane-oxyalkylene block copolymer surfactant compositions which utilized a hydrosilation reaction with high boiling point polar polyols as the reaction solvent. The reaction solvent need not be rem... | 08/15/1989 |
| 4857579 | Thermosettable fiber reinforced resin compositions Described herein are curable molding compositions comprising a mixture of: I. from about 25 to about 90 weight percent of a thermosetting resin containing: (a) from about 5 to about 95 weight percent of a polyester resin derived from the reaction of a poly(acr... | 08/15/1989 |
| 4857593 | Process for processing thermoplastic polymers A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a... | 08/15/1989 |
| 4855379 | Silicone surfactants containing cyclic siloxane pendants Novel siloxane-polyether polymers are provided containing cyclic siloxanes which are useful in silicone surfactants for foam polyurethane foam applications. The novel polymers are prepared by reacting a polyhydridosiloxane polymer with a cyclic polysiloxa... | 08/08/1989 |
| 4855329 | Polysiloxane-polyoxyalkylene terpolymers for polyurethane foam manufacture A polysiloxane-polyoxyalkylene composition of the nominal formula: ##STR1## wherein R is an alkyl group having 1 to 3 carbon atoms and R°, R', R" and R'" are individually monovalent polyoxyalkylene polyethers attached to the silicon atom through a d... | 08/08/1989 |
| 4834933 | Method of molding fiber reinforced articles A method of molding fiber-reinforced thermoset resin articles having improved mechanical properties. A thermosettable organic material is injected into a mold containing a fiber web. The molding composition includes (a) a thermosettable organic material c... | 05/30/1989 |
| 4814359 | Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts Hexahydro-s-triazines, and in particular hexamethylenetetramine (HMT), can be used in high water (5.0 or more parts per hundred parts of polyol) flexible polyurethane foams formulations in place of conventional gellation catalysts to produce open celled m... | 03/21/1989 |
| 4814409 | Polysiloxane-polyoxyalkylene terpolymers for polyurethane foam manufacture A polysiloxane-polyoxyalkylene composition of the nominal formula: ##STR1## wherein R is an alkyl group having 1 to 3 carbon atoms and R°, R', R" and R'" are individually monovalent polyoxyalkylene polyethers attached to the silicon atom through a d... | 03/21/1989 |
| 4797501 | Silicone-based stabilizers useful in the preparation of improved polyurethane foams This invention relates to silicon-based polymer/polyol stabilizers, processes for their manufacture and polyurethane foams containing these stabilized polymer polyols.... | 01/10/1989 |
| 4783295 | Process for preparing molded microcellular elastomers An improved process for producing a molded microcellular elastomer with a reduced number of voids from at least two liquid reactants and a gas, which process comprises introducing into at least one reactant a gas to form an admixture; passing the admixtur... | 11/08/1988 |
| 4783516 | Polysilane precursors containing olefinic groups for silicon carbide This invention is concerned with novel polysilanes containing olefinic groups which are prepared by reactions of halogen-containing organosilane monomers or mixtures thereof with sodium metal in an appropriate solvent or mixture of solvents. Such polysila... | 11/08/1988 |
| 4755575 | Process for preparing fiber reinforced molded articles Described herein is an improved process for rapidly fabricating fiber reinforced thermoset resin articles comprising: (a) providing in a heatable matched metal die mold a bonded web of one or more fibers with a melting point or a glass transition temperat... | 07/05/1988 |
| 4755557 | Fiber reinforced molding compositions providing improved surface characteristics A molding composition is provided which, through the use of a lactone monomer, improves the surface characteristics of the molded composite. In particular, the use of &3xb5;-caprolactone (oxepane-2-one) provides a smoother surface and enhanced dimensional... | 07/05/1988 |
| 4751263 | Curable molding compositions containing a poly(acrylate) Described herein are curable molding compositions comprising a mixture of: (a) a poly(acrylate) characterized by the following empirical formula: ##STR1## wherein R is the hydroxy-free residue of an organic polyhydric alcohol which contained alcoholic hy... | 06/14/1988 |
| 4746683 | Polyether silicone copolymers with secondary or tertiary hydroxy termination for stabilizing high resiliency urethane foam This invention describes novel molded flexible polyurethane foam surfactants which can be used in foam having high concentrations of reinforcing graft copolymer solids. The invention also describes an improved process for making these foams using the nove... | 05/24/1988 |
| 4727094 | Method for producing polyurethanes Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective ... | 02/23/1988 |
| 4727173 | Process for producing trialkoxysilanes from the reaction of silicon metal and alcohol A process for producing trialkoxysilane by the direct reaction of silicon metal with an alcohol, ROH, in the presence of a catalytically effective amount of copper (II) hydroxide, wherein R is an alkyl group containing from 1 to 6 carbon atoms.... | 02/23/1988 |
| 4673706 | Polyester molding compositions The addition of cross-linkable vinyl monomers and epoxy compounds to low shrinking polyester molding compositions containing unsaturated polyesters results in moldings with improved surface characteristics.... | 06/16/1987 |
| 4668716 | Novel fatty ethenoid acylaminoorganosilicon compounds and their use as a coupling agent A novel class of fatty ethenoid acylaminorganosilicon compounds are provided which are useful as coupling agents for fiber glass reinforced resin composites.... | 05/26/1987 |
| 4661537 | Impact promoters for mineral-filled thermoplastics A mineral-filled thermoplastic composition is disclosed which comprises polyethylene or an ethylene-vinyl acetate copolymer; a mineral filler consisting, in the case of polyethylene, of aluminum trihydrate, magnesium hydrate, calcium carbonate or calcium/... | 04/28/1987 |
| 4659772 | Novel polymer/polyols and uses thereof Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective ... | 04/21/1987 |
| 4626560 | Novel binding agent compositions, foundry sand compositions and ureido functional organosilicon compounds Binding agent compositions for inorganic fillers or oxides containing a curable binder such as a hardenable resin, and a ureido-functional organosilicon compound as described. Foundry sand compositions including binding agent compositions as described, sa... | 12/02/1986 |
