Patents Represented by Attorney, Agent or Law Firm Bernard J. Graves
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Patent number: 7094919Abstract: Methods for preparing substituted aromatic carboxylic acid esters are described. In particular, the invention relates a method for preparing a nitro-substituted aromatic carboxylic acid ester: Additionally the invention relates to a method for preparing a thioether-substituted aromatic carboxylic acid ester: Such aryl esters are useful in the preparation of various agrochemicals and agrochemical intermediates.Type: GrantFiled: December 6, 2001Date of Patent: August 22, 2006Assignee: Eastman Chemical CompanyInventors: Neil W. Boaz, M. Todd Coleman, Timothy R. Hightower
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Patent number: 6730401Abstract: A multi-layer structure comprises at least one electrostatic dissipative outer layer and a conductive core layer. The outer layer comprises a material selected from the group consisting of an inherently dissipative polymer, an inherently dissipative polymer blended with a non-conductive matrix polymer, an inherently conductive polymer blended with a non-conductive matrix polymer in an amount sufficient to impart a surface resistivity of greater than 105 and less than 1012 ohms/square, and mixtures thereof. The core layer comprises a material selected from the group consisting of an inherently conductive polymer, an inherently conductive polymer blended with a non-conductive matrix polymer, a conductive filler blended with a non-conductive matrix polymer, and mixtures thereof.Type: GrantFiled: July 9, 2001Date of Patent: May 4, 2004Assignee: Eastman Chemical CompanyInventors: William Carl Jackson, Douglas Stephens McWilliams
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Patent number: 6670505Abstract: A process for recovering a desired organic acid from a solution includes the steps of: providing an aqueous solution including at least one desired organic acid or its acid anion; adjusting the proton concentration in the aqueous solution to a desired level, with the desired proton concentration being selected, at least in part, by the amount of available protons needed to associate with the acid anions of the desired organic acid(s) to be recovered and/or acid anions that are weaker than the desired organic acids; and recovering at least a portion of the at least one desired organic acid from the aqueous phase. The desired proton concentration can be based on the amount of available protons being greater than, less than or substantially equal, to the amount of protons needed to associate with the anion of the desired organic acid(s) and acid anions that are weaker than the desired organic acid(s).Type: GrantFiled: March 7, 2000Date of Patent: December 30, 2003Assignee: Eastman Chemical CompanyInventors: Nick Allen Collins, Mark Robert Shelton, George William Tindall, Steven Thomas Perri, Ruairi Seosamh O'Meadhra, Chester Wayne Sink, Bhaskar Krishna Arumugam, John Clark Hubbs
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Patent number: 6667397Abstract: The present invention provides chemical processes for the preparation of disaccharide and trisaccharide C6 to C12 fatty acid esters having a high alpha content. Yet still further, the invention provides materials prepared by the processes disclosed herein.Type: GrantFiled: August 20, 2001Date of Patent: December 23, 2003Assignee: Eastman Chemical CompanyInventors: John Steele Debenham, Charles Michael Buchanan, Matthew Davie Wood, Michael Orlando Malcolm, Mary Kathleen Moore
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Patent number: 6525162Abstract: A new polyol family for the manufacture of novel polyurethane systems, preferably of polyurethane reactive hot melt adhesives is disclosed. The polyol(s) are reactive modifiers that enhance the properties of polyurethane systems. The inventive polyols are the reaction product of a monocarboxylic acid, a polycarboxylic acid and a polyhydric alcohol. The polyol of the present invention is used to produce urethane polymers, preferably polyurethane reactive hot melt adhesives by reacting the polyol with polyfunctional isocyanates. A method for producing the polyol, the urethane polymer as well as the polyurethane reactive hot melt adhesives is also provided.Type: GrantFiled: June 12, 2000Date of Patent: February 25, 2003Assignee: Eastman Chemical Resins, Inc.Inventor: Georges Napoleon Altounian
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Patent number: 6500973Abstract: A process for the purification and isolation of a chemical compound, by extractive solution crystallization. The process comprises combining in any order a first solvent, a second solvent, and a mixture comprising a chemical compound with at least one impurity. The second solvent phase extracts impurities out of the first solvent, and keeps the impurities dissolved to avoid their co-crystallization with the phenyl ester salt. Once the chemical compound has crystallized out of solution, it is collected, washed and/or dried. The second solvent may be added after the mixture containing at least one chemical compound is dissolved in a first solvent, as long as the second solvent phase is added prior to the end of crystallization. Advantageously, this invention combines the previously distinct steps of extraction and crystallization in one unit operation.Type: GrantFiled: June 1, 2001Date of Patent: December 31, 2002Assignee: Eastman Chemical CompanyInventor: Kevin J. Fontenot
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Patent number: 6497950Abstract: The invention relates to fibers, particularly binder fibers, made from polyesters and the polyesters themselves. The polyesters are the product of a reaction between a glycol component and a dicarboxylic acid component where the glycol component contains at least 50 mole % of a four carbon diol, such as 1,4-butanediol, or a six carbon diol, such as 1,6-hexanediol or a mixture of a four carbon and six carbon diol. Typically, the polyesters of the invention are semicrystalline and/or crystalline and have a specific melting point ranging from about 140 to about 185° C. The polyesters of the invention may be formed into a variety of products, especially binder fibers for nonwoven fabrics, textile/industrial yarns and fabrics, composites and other molded articles.Type: GrantFiled: August 4, 2000Date of Patent: December 24, 2002Assignee: Eastman Chemical CompanyInventors: William A. Haile, Leron R. Dean, Richard L. McConnell, Kishan C. Khemani
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Patent number: 6498124Abstract: The invention relates to a process for isolating a phenyl ester salt from a mixture comprising sulfolane (tetrahydrothiophene-1,1-dioxide). The invention includes adjusting the temperature of a mixture comprising a phenyl ester salt and sulfolane to a temperature of about 100-150° C. This step leads to the formation of a mixture comprising a solid phenyl ester salt and sulfolane. Next, the solid phenyl ester salt is separated, while maintaining the temperature of the mixture at about 100-150° C. The invention also relates to a process that includes adding a sufficient amount of a solvent to a mixture comprising a phenyl ester salt and sulfolane to decrease the viscosity or the density of the mixture. The solvent added has a density less than about 1.20 g/cm3 at 100° C. or a viscosity of less than about 2.56 centipoise at 100° C. The embodiments of the invention may be used alone or in combination.Type: GrantFiled: June 1, 2001Date of Patent: December 24, 2002Assignee: Eastman Chemical CompanyInventors: Kevin J. Fontenot, David C. Attride, Keith B. Terhune
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Patent number: 6497644Abstract: According to the invention, waste materials containing amido-carboxylic acid esters, which are generated during the preparation of phenyl ester salts, can be converted into amido-carboxylic acids. The recovered amido-carboxylic acid is then useful in the preparation of additional phenyl ester salt by the original preparation process or other processes known in the art. The process of the invention combines a waste material containing amido-carboxylic acid esters with an aqueous solution of a strong acid having a pH less than about 1 to form a mixture. The process heats the mixture to a temperature of at least 90° C. and maintains the mixture at that temperature for a time sufficient to hydrolyze the amido-carboxylic acid esters to amido-carboxylic acids. Sufficient base is the added to adjust the pH of the mixture to greater than about 2. The mixture is then maintained at a temperature of at least 80° C.Type: GrantFiled: June 4, 2001Date of Patent: December 24, 2002Assignee: Eastman Chemical CompanyInventors: George C. Zima, Thomas H. Williams, David M. Hitch, Jerry L. Miller
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Patent number: 6495656Abstract: This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, nonwovens, molded objects, and films prepared therefrom.Type: GrantFiled: May 12, 2000Date of Patent: December 17, 2002Assignee: Eastman Chemical CompanyInventors: William A. Haile, Leron R. Dean, Richard L. McConnell, Mark E. Tincher, Alan W. White, Charles M. Buchanan
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Patent number: 6451926Abstract: EpB polyether alcohols were prepared by reacting 3,4-epoxy-1-butene with water or an alcohol such as methanol, butanol or ethylene glycol. Polyether alcohols thus prepared were found to have utility as reactive diluents for oxidatively curable coatings. In addition to this application, 3,4-epoxy-1-butene oligomers can also function as a resin, a chain extender, a monomer, and an additive for various oxidatively curable coating systems including alkyds, unsaturated polyesters, (meth)acrylate functional resins, urethanes, and latexes.Type: GrantFiled: May 4, 2000Date of Patent: September 17, 2002Assignee: Eastman Chemical CompanyInventors: Thauming Kuo, Edward Enns McEntire, Stephen Neal Falling, Yao-Ching Liu, William Anthony Slegeir
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Patent number: 6444781Abstract: The invention relates to resin intermediates and their preparation. The invention also relates to hydroxyl-functional, water-dispersible polymers formed from the intermediates and compositions containing the water-dispersible polymers. A preferred composition of the invention is a zero volatile organic content (VOC), ambient-cure enamel composition which contains a hydroxyl-functional, water-dispersible polyester.Type: GrantFiled: June 16, 2000Date of Patent: September 3, 2002Assignee: Eastman Chemical CompanyInventors: Thauming Kuo, Jeffery E. G. Powell
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Patent number: 6403677Abstract: An aqueous composition and method for applying additives to polymeric particles includes a water-dissipatable polyester derived from a dicarboxylic acid component and a diol component and a difunctional monomer containing a SO3M moiety attached to an aromatic nucleus to at least partially disperse the additive. A method for dispersing a hydrophobic additive in an aqueous media includes the step of contacting the hydrophobic additive with an effective amount of the water-dissipatable polyester to form a mixture and agitating the mixture sufficiently to produce a homogenous blend is also described.Type: GrantFiled: June 23, 2000Date of Patent: June 11, 2002Assignee: Eastman Chemical CompanyInventor: Kenneth Raymond Walker
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Patent number: 6355837Abstract: A method for producing esters and carboxylic acids from lower alkyl alcohols, ethers, esters and ester-alcohol reactant mixtures and includes the step of contacting a vaporous mixture of the reactants, carbon monoxide and a halide with a supported catalyst under vapor-phase carbonylation conditions. The catalyst includes iridium and a second metal selected from group 4 (titanium, zirconium, hafnium) metals of the periodic table of elements. Desirably, the iridium and secondary metal are deposited on activated carbon as a support material. In a preferred aspect of the invention, the vapor phase carbonylation process is useful for preparing acetic acid, methyl acetate or a mixture thereof.Type: GrantFiled: August 25, 1999Date of Patent: March 12, 2002Assignee: Eastman Chemical CompanyInventors: Joseph Robert Zoeller, Andy Hugh Singleton, Gerald Charles Tustin, Donald Lee Carver
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Patent number: 6353140Abstract: Disclosed is process for the treatment of cyclopropanecarboxaldehdye (CPCA) which contains crotonaldehyde impurity with a base at elevated temperature to convert the crotonaldehyde to one or more higher boiling compounds followed by distillation to recover CPCA substantially free of crotonaldehyde. This selective reaction may be combined with a distillation to purify CPCA or in combination with the reaction of the CPCA in the treated mixture to produce a CPCA-derivative while avoiding or minimizing the formation of the analogous crotonaldehyde derivative.Type: GrantFiled: June 8, 2001Date of Patent: March 5, 2002Assignee: Eastman Chemical CompanyInventors: Stephen Neal Falling, Shannon Eugene Large, Robert Joseph Maleski
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Patent number: 6348623Abstract: The specification describes various polymers having monomer of formula (I): In formula (I), R1 and R2 are, independently, hydrogen, a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocycloalkyl group, or a —C(O)R3 group in which R3 is a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocyclic group; or a —CH2—C(O)—R4 group in which R4 is a C1-C6 alkyl group. At least one of R1 and R2 is a —C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films. Unique monomers where both R1 and R2 are acetoacetyl groups and novel monomers where R2 is an acetoacetyl group are also described.Type: GrantFiled: December 6, 2000Date of Patent: February 19, 2002Assignee: Eastman Chemical CompanyInventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
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Patent number: 6337418Abstract: Methods for preparing substituted aromatic carboxylic acid esters are described. In particular, the invention relates a method for preparing a nitro-substituted aromatic carboxylic acid ester: Additionally the invention relates to a method for preparing a thioether-substituted aromatic carboxylic acid ester: Such aryl esters are useful in the preparation of various agrochemicals and agrochemical intermediates.Type: GrantFiled: April 9, 1999Date of Patent: January 8, 2002Assignee: Eastman Chemical Co.Inventors: Neil W. Boaz, M. Todd Coleman, Timothy R. Hightower
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Patent number: 6333378Abstract: A water-based latex of an acrylic-modified waterborne alkyd or uralkyd dispersion in water is described. The acrylic-modified waterborne alkyd or uralkyd is a hybrid resin prepared by the polymerization of at least one latent oxidatively-functional (LOF) acrylic monomer in the presence of a waterborne alkyd or uralkyd. Alternatively, the acrylic-modified waterborne alkyd or uralkyd is a hybrid resin prepared by shearing a mini-emulsion based on a solvent-borne alkyd or uralkyd dissolved in at least one LOF acrylic monomer. Preparation of the latexes may be achieved by emulsion polymerization of at least one latent oxidatively-functional acrylic monomer in the presence of a waterborne alkyd or uralkyd whereby the latent oxidative functionality of the acrylic polymer survives polymerization.Type: GrantFiled: May 28, 1999Date of Patent: December 25, 2001Assignee: Eastman Chemical CompanyInventors: Mark D. Clark, Bradley J. Helmer, Glenn L. Shoaf
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Patent number: 6299864Abstract: A latex composition for hair care containing a hybrid-graft copolymer of a sulfopolyester and an acid-functional polymer segment. The acid-functional polymer segment is formed from at least one acid-functional monomer, at least one ethylenically unsaturated monomer, and at least one amide-containing monomer. Such compositions exhibit superior curl retention even at high humidity.Type: GrantFiled: June 29, 2000Date of Patent: October 9, 2001Assignee: Eastman Chemical CompanyInventors: Robert Gow-Sheng Chen, Phillip Michael Cook
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Patent number: 6297328Abstract: Surfactant-containing acetoacetoxy-functional polymers (SAAP's) are described. The acetoacetoxy-functional polymer may be a surfactant-containing enamine-functional polymer and more preferably a surfactant-containing, polymeric (polyamino)enamine (PPAE). The PPAE is the reaction product of a surfactant-containing acetoacetoxy-functional polymer (SAAP) and a poly(alkylenimine). The polymers may be prepared as waterborne polymer compositions, such as latexes. The waterborne polymer compositions can be prepared with high solids content while maintaining low viscosity. Waterborne polymer compositions containing the polymers of the inventions are useful in a variety of coating formulations such as, for example, paints, inks, sealants, and adhesives. When used in coating formulations, the polymers of the invention provide adhesion and crosslinking in the final film or coating. The film or coating may be cured at ambient temperatures or may be thermally cured.Type: GrantFiled: March 31, 1998Date of Patent: October 2, 2001Assignee: Eastman Chemical CompanyInventors: Martha Jean Collins, James Wayne Taylor