Patents by Inventor David J. Goldwasser
David J. Goldwasser has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7078091Abstract: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.Type: GrantFiled: April 2, 2004Date of Patent: July 18, 2006Assignee: Nike, Inc.Inventors: Henry W Bonk, David J Goldwasser
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Patent number: 7033458Abstract: A method for improving adhesion between two adjacent layers of a laminate membrane includes annealing the laminate membrane at a temperature between an ?-transition temperature and a ?-transition temperature of at least one polymeric component of at least one of two adjacent layers for a time sufficient for the at least one polymeric component of at least one of the adjacent layers to partially diffuse into the other adjacent layer. A sealed, inflated bladder of the invention prepared from the laminate membrane can experience high strains without layer separation or peeling of the laminate layers, even at a seam.Type: GrantFiled: May 2, 2002Date of Patent: April 25, 2006Assignee: Nike, Inc.Inventors: Yihua Chang, Richard L. Watkins, David J. Goldwasser, Robert D. Thompson, Richard P. Wool
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Patent number: 6846534Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one gas barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: GrantFiled: May 23, 2003Date of Patent: January 25, 2005Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Publication number: 20040195174Abstract: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.Type: ApplicationFiled: April 2, 2004Publication date: October 7, 2004Inventors: Henry W. Bonk, David J. Goldwasser
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Publication number: 20040013834Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one gas barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: ApplicationFiled: May 23, 2003Publication date: January 22, 2004Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 6582786Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one fluid barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: GrantFiled: June 14, 2001Date of Patent: June 24, 2003Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Publication number: 20020187289Abstract: A method for improving adhesion between two adjacent layers of a laminate membrane includes annealing the laminate membrane at a temperature between an alpha-transition temperature and a beta-transition temperature of at least one polymeric component of at least one of two adjacent layers for a time sufficient for the at least one polymeric component of at least one of the adjacent layers to partially diffuse into the other adjacent layer. A sealed, inflated bladder of the invention prepared from the laminate membrane can experience high strains without layer separation or peeling of the laminate layers, even at a seam.Type: ApplicationFiled: May 2, 2002Publication date: December 12, 2002Inventors: Yihua Chang, Richard L. Watkins, David J. Goldwasser, Robert D. Thompson, Richard P. Wool
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Patent number: 6391405Abstract: The invention provides amembrane that includes as a gas-barrier component a polyester polyol-modified polyurethane, the polyester polyol portion having repeating units in which the total number of carbon atoms is about eight or less. The membrane has a gas transmission rate of 15.0 or less for nitrogen gas.Type: GrantFiled: December 14, 1998Date of Patent: May 21, 2002Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 6203868Abstract: The present invention relates to barrier membranes including a barrier layer which includes one or more thermoplastic urethane formed from polyester polyols. More particularly, the membranes include a barrier layer including blends of one or more polyester polyol based thermoplastic urethanes and one or more copolymers of ethylene and vinyl alcohol. The barrier membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.Type: GrantFiled: September 23, 1998Date of Patent: March 20, 2001Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 6127026Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one gas barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: GrantFiled: September 11, 1998Date of Patent: October 3, 2000Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 6082025Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one gas barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: GrantFiled: September 11, 1998Date of Patent: July 4, 2000Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 5321099Abstract: Blends of (1) a crystalline polyamide derived from 4,4'-diphenylmethane diisocyanate (MDI) and a dicarboxylic acid and (2) a segmented polyesteramide derived from (a) MDI, (b) a carboxylic acid-terminated polyester prepolymer, a carboxylic acid-terminated polyether prepolymer or a carboxylic acid-terminated polycarbonate prepolymer and (c) from 0 to 10 moles of a dicarboxylic acid per mole of prepolymer, exhibit increased tensile ductility and are useful in the manufacture of headlamp reflectors, electrical connectors, molded circuit boards and the like.Type: GrantFiled: January 2, 1992Date of Patent: June 14, 1994Assignee: The Dow Chemical CompanyInventors: David J. Goldwasser, Augustin T. Chen
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Patent number: 4721768Abstract: Novel polyamide block copolymers are provided which comprise a central block of a soft segment derived from the residue of a polymeric polyol or polycarboxylic acid joined to terminal hard segment polyamide blocks. The linkages which join the blocks are of a novel type and are the opened form of certain monoazetidine-2,4-dione rings.The block copolymers can be prepared very rapidly via anionically polymerizing lactams on to prepolymer soft segments containing terminal azetidine-2,4-dione rings.The speed with which the polymerizations can be carried out make the block copolymers particularly useful for the RIM preparation of molded parts.Type: GrantFiled: February 9, 1987Date of Patent: January 26, 1988Assignee: The Dow Chemical CompanyInventors: Edward F. Cassidy, David J. Goldwasser, Kemal Onder
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Patent number: 4668756Abstract: Novel polyamide block copolymers are provided which comprise a central block of a soft segment derived from the residue of a polymeric polyol or polycarboxylic acid joined to terminal hard segment polyamide blocks. The linkages which join the blocks are of a novel type and are the opened form of certain monoazetidine-2,4-dione rings.The block copolymers can be prepared very rapidly via anionically polymerizing lactams on to prepolymer soft segments containing terminal azetidine-2,4-dione rings.The speed with which the polymerizations can be carried out make the block copolymers particularly useful for the RIM preparation of molded parts.Type: GrantFiled: November 21, 1985Date of Patent: May 26, 1987Assignee: The Dow Chemical CompanyInventors: Edward F. Cassidy, David J. Goldwasser, Kemal Onder
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Patent number: 4567236Abstract: Blends are disclosed of a clear polyurethane plastic and a minor amount (up to 30 parts by weight per 100 parts by weight of blend) of an incompatible polymeric impact modifier. The resulting blends exhibit properties (high impact resistance, high flexural modulus and resistance to heat) comparable to those of engineering plastics such as nylon.Type: GrantFiled: July 18, 1983Date of Patent: January 28, 1986Assignee: The Upjohn Co.Inventors: David J. Goldwasser, Richard W. Oertel, III
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Patent number: 4536533Abstract: Disclosed are injection moldable, rapidly crystallizable compositions comprising (A) a linear polyamide selected from the series poly(4,4'-methylenediphenylene azelamide to dodecanediamide); and (B) an amount sufficient to promote the crystallization of the linear polyamide, of a material selected from the group of (i) talc, (ii) sodium benzenesulfonate, (iii) a polyethylene ionomer, (iv) a methacrylated butadiene-styrene, and (v) a multi-phase composite interpolymer.The compositions crystallize rapidly from the molten state which allows for economically attractive molding procedures including fiber production and the production of aromatic-aliphatic polyamides having a combination of excellent properties.Type: GrantFiled: December 10, 1984Date of Patent: August 20, 1985Assignee: The Upjohn CompanyInventors: Augustin T. Chen, David J. Goldwasser, Kemal Onder
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Patent number: 4501844Abstract: Disclosed are injection moldable, rapidly crystallization compositions comprising (A) a linear polyamide selected from the series poly(4,4'-methylenediphenylene azelamide to dodecanediamide); and (B) an amount sufficient to promote the crystallization of the linear polyamide, of a material selected from the group of (i) talc, (ii) sodium benzenesulfonate, (iii) a polyethylene ionomer, (iv) a methacrylated butadiene-styrene, and (v) a multi-phase composite interpolymer.The compositions crystallize rapidly from the molten state which allows for economically attractive molding procedures including fiber production and the production of aromatic-aliphatic polyamides having a combination of excellent properties.Type: GrantFiled: December 5, 1983Date of Patent: February 26, 1985Assignee: The Upjohn CompanyInventors: Augustin T. Chen, David J. Goldwasser, Kemal Onder
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Patent number: 4376834Abstract: Polyurethane resins are described having high impact strength and other structural strength properties, and significantly improved resistance to deformation by heat. The properties of these materials are such as to make them comparable to engineering thermoplastics such as nylon and like materials commonly used to fabricate structural components such as automotive parts, equipment housing, sporting goods, furniture, toys, household and like consumer goods.The resins are prepared from organic polyisocyanates, an isocyanate-reactive material (polyol, polyamine, etc.) having an average functionality of at least 1.9, a Tg less than 20.degree. C. and molecular weight of 500-20,000, and one or more low molecular weight extenders the major distinguishing feature being the markedly lower proportion by weight (2 to 25 percent) in which the isocyanate-reactive material is employed as compared with polyurethane resins conventionally prepared in the art.Type: GrantFiled: October 14, 1981Date of Patent: March 15, 1983Assignee: The Upjohn CompanyInventors: David J. Goldwasser, Kemal Onder
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Patent number: 4260718Abstract: Novel liquid organic polyisocyanate compositions are disclosed which are obtained by reacting a carbodiimide-containing organic polyisocyanate with a carboxylic acid terminated butadiene-acrylonitrile low molecular weight copolymer in the proportions of from about 2 to about 30 parts of the copolymer per 100 parts of the polyisocyanate provided there is from about 0.01 to about 0.5 carboxylic acid equivalent per equivalent of carbodiimide.The liquid polyisocyanates are particularly useful in providing hard glassy polyurethanes having improved impact strengths.Type: GrantFiled: December 18, 1979Date of Patent: April 7, 1981Assignee: The Upjohn CompanyInventors: William J. Farrissey, Jr., David J. Goldwasser, Kemal B. Onder