Patents by Inventor Edward J. Deyrup
Edward J. Deyrup 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: 5627236Abstract: The present invention relates generally to multi-phase compositions comprising: 1. an aromatic/aliphatic copolyester substantially continuous phase; and 2. a low modulus polymeric substantially discontinuous phase. More specifically, these innovative multi-phase compositions have generally been found to provide high temperature viscosity stability and excellent long-term, heat seal and barrier properties.Type: GrantFiled: December 8, 1995Date of Patent: May 6, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward J. Deyrup, Diane M. Hahm, Herbert V. Bendler
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Patent number: 5405921Abstract: The present invention relates generally to oriented, crystallized polyester compositions which can be thermoformed and heat set with sheet cycle times. More specifically, the compositions of the present invention comprise specialized alkali metal-containing nucleating agents which provide high crystallization rates.Type: GrantFiled: July 14, 1993Date of Patent: April 11, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Lawrence C. Muschiatti, Linda R. Bateman, William L. Strum, Edward J. Deyrup
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Patent number: 5039565Abstract: Composite moisture and oxygen barrier structures in the form of films, sheets, tubes and bottles are described which are composed of foils of high density polyethylene and foils of polar oxygen barrier resins adhered to each other with a coextruded bonding resin composition composed of blends of predominantly high density polyethylene containing low levels of a grafted unsaturated dicarboxylic acid anhydride and linear low density polyethylenes which are copolymers of ethylene with either octene-1 or butene-1. The preferred dicarboxylic acid anhydride is maleic anhydride. The oxygen barrier resins are preferably ethylene/vinyl alcohol copolymers or amorphous polycarboxylamides from condensation polymerization of aliphatic diamines and aromatic dicarboxylic acids.Type: GrantFiled: May 30, 1990Date of Patent: August 13, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: 4973625Abstract: Composite moisture and oxygen barrier structures in the form of films, sheets, tubes and bottles are described which are composed of foils of high density polyethylene and foils of polar oxygen barrier resins adhered to each other with a coextruded bonding resin composition composed of blends of predominantly high density polyethylene containing low levels of a grafted unsaturated dicarboxylic acid anhydride and linear low density polyethylenes which are copolymers of ethylene with either octene-1 or butene-1. The preferred dicarboxylic acid anhydride is maleic anhydride. The oxygen barrier resins are preferably ethylene/vinyl alcohol copolymers or amorphous polycarboxylamides from condensation polymerization of aliphatic diamines and aromatic dicarboxylic acids.Type: GrantFiled: September 23, 1987Date of Patent: November 27, 1990Assignee: E. I. du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: 4912167Abstract: A blow moldable composition of a polyester, an epoxide polymer and a source of catalytic cations.Type: GrantFiled: December 14, 1987Date of Patent: March 27, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward J. Deyrup, Edmund A. Flexman, Jr., King L. Howe
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Patent number: 4873137Abstract: A composite structure comprising at least one core layer comprising polyethylene terephthalate and at least one outer layer on each side of the core layer, comprising polyethylene terephthalate and about 10 to about 60 percent glass flake, based on the weight of the outer layer, provides thermoformed articles with good high temperature stiffness and good surface properties.Type: GrantFiled: June 2, 1988Date of Patent: October 10, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: 4758629Abstract: A melt processible multi-phase thermoplastic composition comprising a blend of:(A) 5-95 parts by weight of a crystalline polyolefin resin of a substantially saturated homopolymer or copolymer of polymerized monomer units of C.sub.2 -C.sub.8 alpha monoolefins forming one phase of the composition,(B) 5-95 parts by weight of a crosslinked ethylene-containing copolymer forming a second phase of the composition comprising units derived from (1) ethylene, (2) alkyl acrylates or alkyl methacrylates wherein the alkyl group contains 1-6 carbon atoms or vinyl esters of monocarboxylic acids having 2-6 carbon atoms, and (3) glycidyl acrylate or glycidyl methacrylate.Type: GrantFiled: May 28, 1986Date of Patent: July 19, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward J. Deyrup, Coretta C. Tam
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Patent number: 4753980Abstract: Toughened thermoplastic polyester compositions comprising 60-97 weight % of a polyester matrix resin and 3-40 weight % of an ethylene copolymer such as ethylene/methylacrylate/glycidyl methacrylate.Type: GrantFiled: November 14, 1986Date of Patent: June 28, 1988Assignee: E. I. Du Pont de Nemours & CompanyInventor: Edward J. Deyrup
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Patent number: 4486564Abstract: Polyethylene terephthalate compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight organic ester. Articles molded from the compositions have high gloss when molded at temperatures below 110.degree. C.Type: GrantFiled: January 11, 1984Date of Patent: December 4, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: 4352904Abstract: Polyethylene terephthalate resin compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a hydrocarbon acid or a salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight organic ester, ketone, sulfone, sulfoxide, nitrile or amide. Articles molded from the compositions have high gloss when molded at temperatures below 110.degree. C.Type: GrantFiled: January 5, 1979Date of Patent: October 5, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: 4294938Abstract: Polyalkylene terephthalate molding blends with ionic hydrocarbon polymers as toughening agents are protected against thermal degradation and discoloration by the presence of a selected silicone resin.Type: GrantFiled: February 15, 1980Date of Patent: October 13, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles E. Berr, Edward J. Deyrup
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Patent number: RE32334Abstract: Polyethylene terephthalate resin compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a hydrocarbon acid or a salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight organic ester, ketone, sulfone, sulfoxide, nitrile or amide. Articles molded from the compositions have high gloss when molded at temperatures below 110.degree. C.Type: GrantFiled: March 11, 1986Date of Patent: January 20, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: RE34537Abstract: Composite moisture and oxygen barrier structures in the form of films, sheets, tubes and bottles are described which are composed of foils of high density polyethylene and foils of polar oxygen barrier resins adhered to each other with a coextruded bonding resin composition composed of blends of predominantly high density polyethylene containing low levels of a grafted unsaturated dicarboxylic acid anhydride and linear low density polyethylenes which are copolymers of ethylene with either octene-1 or butene-1. The preferred dicarboxylic acid anhydride is maleic anhydride. The oxygen barrier resins are preferably ethylene/vinyl alcohol copolymers or amorphous polycarboxylamides from condensation polymerization of aliphatic diamines and aromatic dicarboxylic acids.Type: GrantFiled: September 21, 1992Date of Patent: February 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: RE34546Abstract: Composite moisture and oxygen barrier structures in the form of films, sheets, tubes, and bottles are described which are composed of foils of high density polyethylene and foils of polar oxygen barrier resins adhered to each other with a coextruded bonding resin composition composed of blends of predominantly high density polyethylene containing low levels of a grafted unsaturated dicarboxylic acid anhydride and linear low density polyethylenes which are copolymers of ethylene with either octene-1 or butene-1. The preferred dicarboxylic acid anhydride is maleic anhydride. The oxygen barrier resins are preferably ethylene/vinyl alcohol copolymers or amorphous polycarboxylamides from condensation polymerization of aliphatic diamines and aromatic dicarboxylic acids.Type: GrantFiled: September 21, 1992Date of Patent: February 15, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup