Patents Represented by Attorney Louis N. Moreno
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Patent number: 8349921Abstract: The present invention relates to films made from mixed cellulose esters having low hydroxyl content and certain plasticizers. These films can exhibit +C plate, ?A plate, and biaxial Nz behavior, which make them particularly suitable for use in optical applications, such as in liquid crystal displays (LCD) as protective and compensator films.Type: GrantFiled: February 26, 2009Date of Patent: January 8, 2013Assignee: Eastman Chemical CompanyInventors: Bin Wang, Michael Eugene Donelson, Marcus David Shelby, James Collins Maine
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Patent number: 8304086Abstract: New compositions for forming films for use in optical devices are provided. The compositions comprise a cellulose and a crosslinking agent dissolved or dispersed in a solvent system. Preferred celluloses are cellulose esters such as cellulose acetates, cellulose triacetates, cellulose acetate phthalates, and cellulose acetate butyrates. Preferred crosslinking agents are triazines such as those derived from melamine and benzoguanamine. The inventive compositions can be used to form, for example, protective and/or compensation films for use in polarizing plates.Type: GrantFiled: May 23, 2006Date of Patent: November 6, 2012Assignee: Eastman Chemical CompanyInventors: Kevin Wayne McCreight, Douglas Claire Hoffman, Wesley Raymond Hale
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Patent number: 8287991Abstract: Disclosed are laminated articles comprising a first polymer layer and a second polymer layer having an inclusion embedded between the layers, wherein at least one layer comprises a branching agent to improve dimensional stability during the lamination process. Disclosed are laminated articles comprising a first polymer layer and a second polymer layer having an inclusion embedded between the layers, wherein at least one layer comprises a copolyester comprising a branching agent to improve dimensional stability during the lamination process. Also disclosed are methods of laminating a first layer and a second layer with an inclusion between the layers to form a laminated article with an embedded inclusion, wherein at least one layer comprises a copolyester comprising a branching agent.Type: GrantFiled: July 13, 2007Date of Patent: October 16, 2012Assignee: Eastman Chemical CompanyInventors: Michael Eugene Donelson, Ryan Thomas Neill, James Collins Maine, Bryan Steven Bishop, Robert Erik Young
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Patent number: 8071695Abstract: Disclosed are polyester blends that provide improved stress whitening behavior. The blends may be prepared from a polyester having crystallization half-time of at least 5 minutes and a polyester elastomer. The polyesters blends may be extruded or, in the presence of a release additive, calendered to produce film or sheet. Also disclosed are processes for making a film or sheet by extrusion or calendering the above blends and the film or sheet produced therefrom. The polyester blend and the film or sheet produced therefrom also may include plasticizers and/or flame retardants to increase their flexibility and enable their use in commercial applications requiring flame resistance. The film and sheet have excellent appearance and can be used in a wide range of decorative and packaging applications.Type: GrantFiled: November 10, 2005Date of Patent: December 6, 2011Assignee: Eastman Chemical CompanyInventors: Marc Alan Strand, Rodney Layne Piner, David Gayle Salyer
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Patent number: 8007918Abstract: In one aspect, the invention relates to a composition comprising a cellulose ester and a high boiling plasticizer having a boiling point greater than 370° C., wherein the composition has a glass transition temperature (Tg) greater than a similar composition having triphenyl phosphate (TPP) plasticizer substituted for the high boiling plasticizer. The invention also related to articles and films made therefrom. This invention also relates to methods of making the compositions, articles and films.Type: GrantFiled: August 27, 2008Date of Patent: August 30, 2011Assignee: Eastman Chemical CompanyInventor: Darryl Aubrey Godfrey
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Patent number: 7989667Abstract: Disclosed is a novel process for the continuous crystallization of a mixture of cis-2,2,4,4-tetramethylcyclobutanediol and trans-2,2,4,4-tetramethylcyclobutanediol dissolved in a solvent.Type: GrantFiled: September 4, 2009Date of Patent: August 2, 2011Assignee: Eastman Chemical CompanyInventor: Ruairi Seosamh O'meadhra
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Patent number: 7838707Abstract: The present disclosure relates to the production of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol. In one embodiment, the present invention relates to the production of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol by hydrogenation of a 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the presence of a ruthenium-promoted cobalt-based catalyst.Type: GrantFiled: November 30, 2007Date of Patent: November 23, 2010Assignee: Eastman Chemical CompanyInventors: Jennifer Ellen McCusker-Orth, Jerome Leonard Stavinoha, Jr., Anthony Dominick Messina, Steven Thomas Perri, Zhufang Liu, Philip Conrad Heidt, Brent Alan Tennant
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Patent number: 7834127Abstract: Disclosed are amorphous copolyesters having an inherent viscosity (IV) of about 0.5 to 1.1 dL/g measured at a temperature of 25° C. at 0.5 g/dL concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component comprising about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component comprising about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article.Type: GrantFiled: February 23, 2006Date of Patent: November 16, 2010Assignee: Eastman Chemical CompanyInventors: Sam Richard Turner, Jonathan Terrill Milburn, Robert William Seymour, Kab Sik Seo
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Patent number: 7723551Abstract: The present disclosure pertains to processes for the simultaneous co-production of 2,2,4,4-tetramethylcyclobutane-1,3-diol and 1,4-cyclohexanedimethanol by hydrogenation 2,2,4,4-tetramethylcyclobutane-1,3-dione and dimethylcyclohexane-1,4-dicarboxylate, respectively, under hydrogenation conditions of temperature and pressure.Type: GrantFiled: November 30, 2007Date of Patent: May 25, 2010Assignee: Eastman Chemical CompanyInventors: Jennifer Ellen McCusker, Jerome Leonard Stavinoha, Jr., Christopher Fletcher Tomlin, Michael Wayne Salyer
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Patent number: 7632962Abstract: Disclosed is a process for the preparation of dimethyl cyclohexanedicarboxylates by the hydrogenation of the corresponding dimethyl benzenedicarboxylate ester in the presence of supported catalysts comprising (i) a Group VIII metal and (ii) a catalyst support material selected from graphite and silicon carbide.Type: GrantFiled: April 17, 2007Date of Patent: December 15, 2009Assignee: Eastman Chemical CompanyInventor: Zhufang Liu
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Patent number: 7602108Abstract: Disclosed are layered films having a combination of piezoelectric layers that change dimension with applied voltage and non-piezoelectric layers. The layered structures can form a wide range of electrically switchable optical films. These films have applications in displays, polarizers, optical compensators, aesthetic films, and “hot” and “cold” mirrors that selectively reflect only certain wavelengths. Also disclosed are monochromatic and multicolor displays using these films.Type: GrantFiled: April 27, 2006Date of Patent: October 13, 2009Assignee: Eastman Chemical CompanyInventor: Marcus David Shelby
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Patent number: 7582690Abstract: Disclosed are stabilized aliphatic polyester compositions comprising an aliphatic polyester, a HALS, and a tris-aryl-S-triazine UV absorber that show low embrittlement, haze formation, and discoloration during weathering. Also disclosed are aliphatic polyester compositions comprising aliphatic polyester, a hindered amine light stabilizer, a triazine UV absorber, and a phosphite that exhibit low color prior to weathering but retain good clarity, color, and excellent impact strength after exposure to weathering conditions. The aliphatic polyester compositions may be used prepare shaped articles such as, for example, films, sheets, bottles, tubes, profiles, fibers, and molded articles.Type: GrantFiled: June 30, 2005Date of Patent: September 1, 2009Assignee: Eastman Chemical CompanyInventors: Jason Clay Pearson, Gether Irick, Jr.
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Patent number: 7582804Abstract: The present disclosure relates to the production of 2,2,4,4-tetraalkylcyclobutane-1,3-diol. In one embodiment, the present invention relates to the production of 2,2,4,4-tetraalkylcyclobutane-1,3-diol by hydrogenation of 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the presence of a promoted copper-based catalyst.Type: GrantFiled: November 30, 2007Date of Patent: September 1, 2009Assignee: Eastman Chemical CompanyInventors: Jennifer Ellen McCusker-Orth, Jerome Leonard Stavinoha, Jr., Anthony Dominick Messina, Steven Thomas Perri, Zhufang Liu, Philip Conrad Heidt, Brent Alan Tennant
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Patent number: 7560600Abstract: The present invention relates to the production of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol. In one embodiment, the present invention relates to the production of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol by hydrogenation of a 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the presence of a promoted nickel-based catalyst.Type: GrantFiled: November 30, 2007Date of Patent: July 14, 2009Assignee: Eastman Chemical CompanyInventors: Jennifer Ellen McCusker-Orth, Michael Wayne Salyer
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Patent number: 7521583Abstract: The present invention relates to the production of 2,2,4,4-tetramethylcyclobutane-1,3-diol. In one embodiment, the present invention relates to the production of 2,2,4,4-tetramethylcyclobutane-1,3-diol by hydrogenation of 2,2,4,4-tetramethylcyclobutane-1,3-dione in the presence of a cobalt-based catalyst.Type: GrantFiled: November 30, 2007Date of Patent: April 21, 2009Assignee: Eastman Chemical CompanyInventors: Jennifer Ellen McCusker-Orth, Jerome Leonard Stavinoha, Jr., Anthony Dominick Messina, Steven Thomas Perri, Zhufang Liu, Philip Conrad Heidt, Brent Alan Tennant
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Patent number: 7297755Abstract: Disclosed are oriented, shaped articles such as, for example, film, fibers, bottles, and tubes, with excellent strength, toughness, clarity, chemical resistance, and UV resistance. The articles can be prepared from cycloaliphatic polyesters and from compositions comprising cycloaliphatic polyesters and cycloaliphatic polyester elastomers. The articles may be oriented by stretching in at least one direction and have a modulus which results in a soft feel. Also disclosed are polyester compositions comprising cycloaliphatic polyesters and polyester elastomers.Type: GrantFiled: November 30, 2006Date of Patent: November 20, 2007Assignee: Eastman Chemical CompanyInventors: Marcus David Shelby, Douglas Stephens McWilliams, James Wilson Mercer, Jr., Mark Elliott Tincher
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Patent number: 7235623Abstract: Polyester compositions that provide a higher throughput in calendering processes may be prepared from a polyester having crystallization half time of at least 5 minutes, an inherent viscosity of about 0.55 to about 0.75 dL/g, a branching monomer, and a release additive. The polyester compositions show a combination of excellent melt strength with good shear response that permits higher calendering line speeds before melt fracture occurs. Also disclosed are processes for film or sheet by calendering the above compositions and the film or sheet produced therefrom. The polyester compositions, film, or sheet also may include plasticizers and/or flame retardants to increase their flexibility and enable their use in commercial applications requiring flame resistance. The film and sheet have excellent appearance and can be used in a wide range of decorative and packaging applications.Type: GrantFiled: November 26, 2003Date of Patent: June 26, 2007Assignee: Eastman Chemical CompanyInventors: Marc Alan Strand, Rodney Layne Piner, Eric Jon Moskala
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Patent number: 7211634Abstract: Disclosed is a process for the preparation of high molecular weight polyesters by reacting one or more dicarboxylic acids directly with 1,4-cyclohexanedimethanol and, optionally, one or more diols. The process uses an overall diol to dicarboxylic acid molar ratio of about 0.97 to about 1.2 and an incremental addition of either the diacid or diol components. The process provides a shorter total reaction time and, thus, lessens the thermal degradation of polyester which may result in high color and reduced molecular weight.Type: GrantFiled: April 28, 2006Date of Patent: May 1, 2007Assignee: Eastman Chemical CompanyInventors: Daniel Lee Martin, Joseph Franklin Knight, Benjamin Fredrick Barton, Damon Bryan Shackelford
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Patent number: 6994799Abstract: Disclosed are ester-containing fluid compositions, methods of making such compositions, and methods of using such compositions. The fluid compositions comprise a mix of branched and linear ester compounds, and the fluid compositions are characterized by certain performance limitations. The preferred method of making the fluid compositions enables the ester mix to be made in a one step process with little finishing required to obtain desirable performance characteristics.Type: GrantFiled: December 22, 2000Date of Patent: February 7, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Eddy Van Driessche, Georges Mathys, Richard H. Schlosberg, Christian Francois, Chris De Roover
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Patent number: 6887305Abstract: A release agent for use in imaging systems having hot a fuser roller wherein the release agent is a hydrocarbon.Type: GrantFiled: May 29, 2002Date of Patent: May 3, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Thomas Marshall Larson, Allen D. Godwin, Bruce R. Lundmark, Anthony James Giaquinto