Patents Represented by Attorney B. J. Boshears
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Patent number: 8198371Abstract: Polymer blends comprising polyesters made from terephthalic acid; 2,2,4,4-tetramethyl-1,3-cyclobutanediol; and 1,4-cyclohexanedimethanol, and copolymers made from acrylonitrile, butadiene, and styrene (ABS) monomers. These blends have a combination of toughness, heat resistance, high modulus, and good flowability—making them particularly useful in films, fibers, engineering molding plastics, and packaging.Type: GrantFiled: February 23, 2009Date of Patent: June 12, 2012Assignee: Eastman Chemical CompanyInventor: Gary Michael Stack
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Patent number: 7510768Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: March 28, 2006Date of Patent: March 31, 2009Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7491760Abstract: This invention relates to a polymer composition comprising (A) at least one polyester prepared by the reaction of at least one diol with at least one dicarboxylic acid/or dialkyl ester thereof in the presence of a metallic catalyst; (B) a salt comprising at least one suitable phosphorus-containing acid and at least one suitable basic organic compound, such as a hindered amine light stabilizer; (C) at least one ultraviolet light absorbing compound and optionally at least one phenolic antioxidant. A second embodiment of the present invention pertains to a blend of (A) at least one polyester prepared by the reaction of at least one diol with at least one dicarboxylic acid/or dialkyl ester thereof in the presence of a metallic catalyst; (B) a salt comprising at least one suitable phosphorus-containing acid and at least one suitable basic organic compound; (C) at least one ultraviolet light absorbing compound and, optionally, at least one phenolic antioxidant; and (D) at least one polycarbonate.Type: GrantFiled: August 16, 2005Date of Patent: February 17, 2009Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Douglas Stephens McWilliams, Gether Irick, Jr., Max Allen Weaver
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Patent number: 7482397Abstract: This invention relates to polycarbonate compositions comprising: (A) at least one polycarbonate comprising repeating units derived from a dihydroxyaromatic compound or a dihydroxyaliphatic compound of the formula HO—Y—OH; and (B) at least one salt prepared from the reaction of one or more acidic phosphorus-containing compounds and one or more hindered amine light stabilizers. The polycarbonate compositions exhibit improved hydrolytic stability.Type: GrantFiled: August 16, 2005Date of Patent: January 27, 2009Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Douglas Stephens McWilliams, Gether Irick, Jr., Max Allen Weaver
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Patent number: 7468409Abstract: Disclosed are polymer compositions comprising: (A) at least one polyester prepared by the reaction of at least one diol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst; and (B) at least one salt prepared from the reaction of one or more acidic phosphorus-containing compounds and one or more basic organic compounds which contain nitrogen. The polyester compositions exhibit improved color, especially when used as a component of a polyester/polycarbonate blend. Also disclosed are polymer compositions comprising a polycarbonate in combination with components (A) and (B).Type: GrantFiled: August 16, 2005Date of Patent: December 23, 2008Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Douglas Stephens McWilliams, Gether Irick, Jr., Max Allen Weaver
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Patent number: 7462684Abstract: Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and in which at least one layer contains at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol and a separate layer which contains a transamidized, homogeneous blend of a least two polyamides. The polyester component and the polyamide component have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen-scavenging properties.Type: GrantFiled: March 28, 2006Date of Patent: December 9, 2008Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Mark Edward Stewart, Martin Emerson Rogers, Spencer Allen Gilliam, Michael Duane Cliffton, Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell, Marcus David Shelby
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Patent number: 7425590Abstract: Polymer compositions comprising: (A) at least one polyester (A) comprising: (1) diacid residues comprising about 70 to 100 mole percent phthalic acid residues; and 0 to about 30 mole percent of modifying dicarboxylic acid residues, wherein the total mole percent of diacid residues is equal to 100 mole percent; and (2) diol residues comprising about 0 to 45 mole percent 1,4-cyclohexanedimethanol residues, and 100 to about 55 mole percent of other alkylene glycol residues, wherein the total mole percent of diol residues is equal to 100 mole percent; and (B) a miscible blend of: (1) at least one polycarbonate (B) of bisphenol A; (2) at least one polyester (C) consisting essentially of 1,4-cyclohexanedicarboxylic acid residues and at least one glycol selected from 70 to 100 mole percent of residues of 1,4-cyclohexanedimethanol residues and 0 to 30 mole percent of residues of polytetramethylene glycol.Type: GrantFiled: July 12, 2005Date of Patent: September 16, 2008Assignee: Eastman Chemical CompanyInventor: Wesley Raymond Hale
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Patent number: 7345104Abstract: Blends of polycarbonate and copolyester that are capable of being extrusion blow-molded are described. The blends preferably comprise (I) about 1 to 99% by weight of a linear or branched polycarbonate and (II) about 1 to 99% by weight of a mixture of (i) about 40 to 100% by weight of a first copolyester and (ii) about 0 to 60% by weight of a second copolyester. The first copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues, (B) diol residues comprising about 45 to 75 mole percent of 1,4-cyclohexanedimethanol (CHDM) residues and about 25 to 55 mole percent of ethylene glycol residues, and (C) about 0.05 to 1.0 mole percent of the residue of a trifunctional monomer. The optional second copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues and (B) diol residues comprising about 52 to 90 mole percent of CHDM residues and about 10 to 48 mole percent of ethylene glycol residues.Type: GrantFiled: November 5, 2004Date of Patent: March 18, 2008Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Harold Eugene Dobbs, Spencer Allen Gilliam
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Patent number: 7342059Abstract: Blends of polycarbonate and copolyester that are capable of being extrusion blow-molded are described. The blends preferably comprise (I) about 1 to 99% by weight of a linear or branched polycarbonate and (II) about 1 to 99% by weight of a mixture of (i) about 40 to 100% by weight of a first copolyester and (ii) about 0 to 60% by weight of a second copolyester. The first copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues, (B) diol residues comprising about 45 to 75 mole percent of 1,4-cyclohexanedimethanol (CHDM) residues and about 25 to 55 mole percent of ethylene glycol residues, and (C) about 0.05 to 1.0 mole percent of the residue of a trifunctional monomer. The optional second copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues and (B) diol residues comprising about 52 to 90 mole percent of CHDM residues and about 10 to 48 mole percent of ethylene glycol residues.Type: GrantFiled: December 16, 2003Date of Patent: March 11, 2008Assignee: Eastman Chemical CompanyInventors: Thomas Joseph Pecorini, Harold Eugene Dobbs, Spencer Allen Gilliam, Wesley Raymond Hale
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Patent number: 7297735Abstract: This invention relates to polycarbonate compositions comprising: (A) at least one polycarbonate comprising repeating units derived from a dihydroxyaromatic compound or a dihydroxyaliphatic compound of the formula HO—Y—OH; and (B) at least one salt prepared from the reaction of one or more acidic phosphorus-containing compounds and one or more hindered amine light stabilizers. The polycarbonate compositions exhibit improved hydrolytic stability.Type: GrantFiled: March 5, 2003Date of Patent: November 20, 2007Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Douglas Stephens McWilliams, Gether Irick, Jr., Max Allen Weaver
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Patent number: 7297736Abstract: Disclosed are polymer blends comprising polycarbonate(s) and polyester(s) wherein the polycarbonate is a polycarbonate derived from bisphenol A and the polyester comprises residues of or is derived from one or more aromatic dicarboxylic acids, neopentyl glycol, and 1,4-cyclohexanedimethanol.Type: GrantFiled: October 28, 2004Date of Patent: November 20, 2007Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Sam Richard Turner
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Patent number: 7279123Abstract: A polyester resin composition is calendered to produce a film or a sheet. The polyester resin composition is a polyester having a crystallization half time from a molten state of at least 5 minutes combined with an additive for preventing sticking of the polyester to calendering rolls.Type: GrantFiled: December 1, 2004Date of Patent: October 9, 2007Assignee: Eastman Chemical CompanyInventors: Paul Mary Flynn, Richard Leon McConnell, Hubertus Jacobus Wilhelmus Moolenaar, Timothy Michael Sanders
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Patent number: 7230065Abstract: The present invention relates to miscible blends of the polycarbonate of bisphenol A and polyesters from aromatic dicarboxylic acids, 1,4-cyclohexanedimethanol, ethylene glycol, and 2,2?-(sulfonylbis(4,1-phenyleneoxy)-bis(ethanol).Type: GrantFiled: July 12, 2005Date of Patent: June 12, 2007Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, Sam Richard Turner, Gary Wayne Connell
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Patent number: 7226985Abstract: Disclosed are polymer compositions comprising: (A) a first component comprising about 1 to 99 percent by weight at least one polyester (A) comprising: (1) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixtures thereof, and (2) diol residues selected from the group consisting of 1,4 -cyclohexanedimethanol residues, ethylene glycol residues and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is less than 0.Type: GrantFiled: July 12, 2005Date of Patent: June 5, 2007Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, David Gayle Salyer
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Patent number: 7157547Abstract: An ultraviolet absorption composition has been developed for the protection of packaging or container contents in the ultraviolet range of 290 nm to 390 nm, offering effective screening from all wavelengths of solar radiation. A combination of an optical brightener with an ultraviolet absorber has been found to provide effective screening without adding significant color to the polymer composition. This extended range of ultraviolet blocking over what can be achieved with ultraviolet absorbers alone is especially valuable in food and drink packaging applications where the contents of the packages need ultraviolet protection to prevent discoloration or development of undesirable flavors.Type: GrantFiled: November 13, 2003Date of Patent: January 2, 2007Assignee: Eastman Chemical CompanyInventors: Rondell Paul Little, Jr., Gether Irick, Jr., Emerson Eston Sharpe, Jr.
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Patent number: 7147927Abstract: Disclosed are biaxially oriented polyester film produced from a polyester comprising: (1) diacid residues comprising at least 90 mole percent of terephthalic acid residues, naphthalenedicarboylic acid residues or combinations thereof; and (2) diol residues comprising at least 90 mole percent of 1,4-cyclohexanedimethanol residues; wherein the polyester comprises a total of 100 mole percent diacid residues and a total of 100 mole percent diol residues; wherein the polyester film is stretched at a ratio of about 2.5× to 3× in the machine direction (MD) and about 2.5× to 3× in the transverse direction (TD) at stretching temperatures between 90 and 1 10OC, wherein the stretched film is subsequently heat-set at an actual film temperature of from 260° C.Type: GrantFiled: June 25, 2003Date of Patent: December 12, 2006Assignee: Eastman Chemical CompanyInventors: Thomas Joseph Pecorini, Gary Darrel Boone
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Patent number: 7118799Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend.Type: GrantFiled: November 22, 2002Date of Patent: October 10, 2006Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, Robert William Seymour
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Patent number: 7037576Abstract: The invention relates to polyester/polyolefin laminate materials having improved properties. The invention also relates to copolyester/polyolefin laminate materials having improved properties. The laminates herein exhibit improved results in flammability studies. The invention further relates to methods of making laminate structures.Type: GrantFiled: January 31, 2003Date of Patent: May 2, 2006Assignee: Eastman Chemical CompanyInventors: John Edward Christopher Willham, Thomas Joseph Pecorini
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Patent number: 6914120Abstract: This invention relates to a process for producing a polyester comprising the steps of: (g) obtaining an aqueous homogenous solution of isosorbide; (h) feeding the aqueous homogenous solution of step (a) into a reactor; (i) feeding one or more glycols and one or more dicarboxylic acids either into the aqueous solution of step (a) or into the reactor of step (b) either prior to, during and/or subsequent to step (b); (j) esterifying the reactor contents at sufficient temperatures and pressures, and optionally in the presence of suitable catalysts, to effect esterification; (k) forming a prepolymer; and (l) polycondensing the prepolymer at sufficient temperatures and pressures in the presence of a suitable catalyst to effect polycondensation to form a polyester.Type: GrantFiled: November 13, 2002Date of Patent: July 5, 2005Assignee: Eastman Chemical CompanyInventors: Ted Calvin Germroth, Sam Richard Turner, Lanny Calvin Treece
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Patent number: 6896966Abstract: This invention relates to thermoplastic article having one or more decorative materials on the surface thereof which is obtained by applying heat and pressure to a laminate wherein said thermoplastic article comprises (1) one or more decorative materials; and (2) an upper or lower sheet material; wherein the upper or lower sheet material is formed from a polyester/aromatic polycarbonate blend.Type: GrantFiled: November 22, 2002Date of Patent: May 24, 2005Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, Robert William Seymour