Abstract: 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 polyorganosiloxanes bearing a hydroxyl functionality.
Type:
Grant
Filed:
March 17, 1989
Date of Patent:
June 5, 1990
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
George N. Foster, Herbert E. Petty, Charles H. Blevins, II, Roswell E. King, III
Abstract: 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 polyol, and a processing adjuvant, such as a phosphate.
Type:
Grant
Filed:
May 24, 1989
Date of Patent:
May 15, 1990
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
Pak S. Leung, Errol D. Goddard, Fred H. Ancker
Abstract: Polyurea foams are prepared by the reaction of N-(polyoxyalkyl)-N-(alkyl)amines with organic isocyanates in the presence of a suitable catalyst.
Type:
Grant
Filed:
March 31, 1988
Date of Patent:
February 27, 1990
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
Richard M. Gerkin, Michael W. Jorgenson
Abstract: 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 molded foams with excellent surfaces and with cores free of discoloration.
Type:
Grant
Filed:
November 7, 1988
Date of Patent:
February 20, 1990
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
Otis M. Baker, Frank E. Critchfield, Paul M. Westfall
Abstract: 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.
Type:
Grant
Filed:
July 1, 1988
Date of Patent:
January 23, 1990
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Abstract: 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.
Type:
Grant
Filed:
December 22, 1983
Date of Patent:
December 26, 1989
Assignee:
Union Carbide Corporation and Plastics Company Inc.
Abstract: 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.
Type:
Grant
Filed:
December 30, 1987
Date of Patent:
November 28, 1989
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
Paul M. Westfall, Frank E. Critchfield, William A. Gill
Abstract: 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 deposition of a mass onto the release surface containing the release agent, and (iii) the separation of the mass or a product derived from the mass from such surface covered by the release agent. Novel apparatus for carrying out the process are described.
Type:
Grant
Filed:
November 23, 1988
Date of Patent:
November 21, 1989
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
Keith D. Cavender, Edmond J. Derderian, Eugene L. Jarrett, Kenneth A. Nielsen
Abstract: The present invention relates to polysiloxanes containing pendant sterically hindered phenol moieties. The compounds are represented by the general formula MD.sub.X D'.sub.y M.
Type:
Grant
Filed:
March 30, 1989
Date of Patent:
November 7, 1989
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Inventors:
George N. Foster, Herbert E. Petty, Charles H. Blevins, II
Abstract: 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 such compositions also are disclosed.
Type:
Grant
Filed:
September 30, 1986
Date of Patent:
October 10, 1989
Assignee:
Union Carbide Chemicals and Plastics Company Inc.
Abstract: 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 removed from the block copolymer, particularly when the block copolymer is used as a surfactant for polyurethane foam formulations. Dipropylene glycol is the preferred polar solvent and when used in the preparation of the surfactants need not be removed when the surfactants are employed in the preparation of urethane foams.
Type:
Grant
Filed:
July 2, 1987
Date of Patent:
August 15, 1989
Assignee:
Union Carbide Corporation
Inventors:
Paul E. Austin, David D. Farris, James D. Reedy, Charles Blevins, Philbert E. Ramdatt
Abstract: 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 polyol, and a processing adjuvant, such as a phosphate.
Type:
Grant
Filed:
March 8, 1988
Date of Patent:
August 15, 1989
Assignee:
Union Carbide Corporation
Inventors:
Pak S. Leung, Errol D. Goddard, Fred H. Ancker
Abstract: 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(acrylate) and a vinyl monomer, said poly(acrylate) and vinyl monomer essentially free from functional groups reactive with the polyol or the polyisocyanate of (b);(b) from about 95 to about 5 weight percent of a polyurethane derived from the reaction of a saturated polyol and a polyisocyanate, said polyol and polyisocyanate free from unsaturated groups capable of copolymerizing with the poly(acrylate) or vinyl monomer of (a); andII. from about 75 to about 10 weight percent of one or more fibers with a melting point or a glass transition temperature above about 130.degree. C.; wherein (b) constitutes less than 40 weight percent of (I) and (II).
Abstract: A polysiloxane-polyoxyalkylene composition of the nominal formula: ##STR1## wherein R is an alkyl group having 1 to 3 carbon atoms and R.degree., R', R" and R'" are individually monovalent polyoxyalkylene polyethers attached to the silicon atom through a difunctional link; and,the polyoxyalkylene of R' is a poly(oxyethylene-oxypropylene) ether which contains 20% to 60% oxyethylene by weight and has an average molecular weight of from about 3,000 to about 5,500;the polyoxyalkylene of R" is a poly(oxyethylene-oxypropylene) ether which contains 20% to 60% oxyethylene by weight and has an average molecular weight of from about 800 to about 2,900; andthe polyoxyalkylene of R'" is a polyoxypropylene polyether having an average molecular weight from about 130 to about 1200;R.degree.
Type:
Grant
Filed:
November 17, 1988
Date of Patent:
August 8, 1989
Assignee:
Union Carbide Corporation
Inventors:
Charles H. Blevins, II, William B. Herdle, Gerald J. Murphy
Abstract: 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 polysiloxane containing a vinyl group and with an allyl started polyoxyalkylene polymer in the presence of a platinum catalyst. The resulting polymeric products are highly potent and impart flat breathability profiles to foams when used as surfactants in their preparation.
Abstract: 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 containing two or more polymerizable carbon-carbon double bonds, (b) an ethylenically unsaturated monomer which forms a liquid homogeneous mixture with and is copolymerizable with (a) and is different from (a), and (c) an effective amount of an initiator or a mixture of initiators characterized by a ten-hour half life temperature, or in the case of a mixture of initiators, and average ten-hour half life temperature, of greater than about 50.degree. C. and less than 105.degree. C., which produces on decomposition less than 1.0 milliliter of gas per gram of resin as measured at a temperature of 25.degree. C. and a pressure of one atmosphere.
Abstract: A polysiloxane-polyoxyalkylene composition of the nominal formula: ##STR1## wherein R is an alkyl group having 1 to 3 carbon atoms and R.degree., R', R" and R'" are individually monovalent polyoxyalkylene polyethers attached to the silicon atom through a difunctional link; and,the polyoxyalkylene of R' is a poly(oxyethylene-oxypropylene) ether which contains 20% to 60% oxyethylene by weight and has an average molecular weight of from about 3,000 to about 5,500;the polyoxyalkylene of R" is a poly(oxyethylene-oxypropylene) ether which contains 20% to 60% oxyethylene by weight and has an average molecular weight of from about 800 to about 2,900; andthe polyoxyalkylene of R'" is a polyoxypropylene polyether having an average molecular weight from about 130 to about 1200;R.degree.
Type:
Grant
Filed:
August 31, 1987
Date of Patent:
March 21, 1989
Assignee:
Union Carbide Corporation
Inventors:
Charles H. Blevins, II, William B. Herdle, Gerald J. Murphy
Abstract: 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 molded foams with excellent surfaces and with cores free of discoloration.
Type:
Grant
Filed:
December 30, 1987
Date of Patent:
March 21, 1989
Assignee:
Union Carbide Corporation
Inventors:
Otis M. Baker, Frank E. Critchfield, Paul M. Westfall