Abstract: This invention is directed to a waterborne polyolefin composition which is useful as an adhesion promotor and is prepared by emulsifying non-oxidized, non-maleated, non-chlorinated, crystalline polyolefins and non-chlorinated, maleated, amorphous polyolefins in the presence of a surfactant, an amine and water.
Type:
Grant
Filed:
October 2, 1995
Date of Patent:
December 17, 1996
Assignee:
Eastman Chemical Company
Inventors:
Mahendra K. Sharma, Kevin A. Williams, Michael Bellas
Abstract: This invention relates to linear, water-dispersible sulfopolyesters that incorporate higher order polyalkylene glycol units. The sulfopolyesters provide improved abrasion and blocking resistances in polyester fiber sizing applications.
Type:
Grant
Filed:
November 27, 1995
Date of Patent:
November 5, 1996
Assignee:
Eastman Chemical Company
Inventors:
Scott E. George, Edgar W. Lefler, IV, James M. Spain, Jr.
Abstract: This invention relates to a process for recycling waste material selected from amino-carboxylic acid oligomers or polymers and amido-carboxylic acid oligomers or polymers into amido-carboxylic acids. A mixture containing water, an oligomeric or polymeric waste material, and a carboxylic acid is heated. The mixture is cooled to obtain a two phase system containing an aqueous phase and an organic phase which are separated. Carboxylic acids, unreacted starting materials, and the monomeric amido-carboxylic acid product are distilled from the organic phase. The remaining solid residue composed of high boiling oligomeric amino-carboxylic acids is recycled into Step (A).
Type:
Grant
Filed:
November 7, 1994
Date of Patent:
October 15, 1996
Assignee:
Eastman Chemical Company
Inventors:
George C. Zima, Gary P. Lutz, Gary W. McChesney, T. Hugh Williams
Abstract: This invention relates to polymer compositions containing naphthalenedicarboxylic acid residues and having reduced fluorescence due to the presence of aromatic thioether compounds. More specifically, the polymer compositions contain poly(ethylene 2,6-naphthalene dicarboxylate) and 0.1 to 5 mole percent of an aromatic thioether compound. The pollers are useful for packaging applications where clarity and/or aesthetic appeal is important.
Type:
Grant
Filed:
December 21, 1994
Date of Patent:
September 10, 1996
Assignee:
Eastman Chemical Company
Inventors:
Max A. Weaver, David E. Mills, James Tanner, III, Jean C. Fleischer, Wayne P. Pruett, L. Shane Moody
Abstract: The present invention relates to a low-irritation anesthetic and antiseptic mouth rinse. The mouth rinse is freeze-thaw stable and is prepared using polyethylene glycol having a number average molecular weight of 200 to 300 which have been found to be compatible with local anesthetics and other ingredients commonly used in mouth rinses.
Type:
Grant
Filed:
October 11, 1994
Date of Patent:
August 20, 1996
Assignee:
Eastman Chemical Company
Inventors:
Andy H. Singleton, Crystal L. Kendrick, Reinhold L. Riemer, II, Robin L. Minga
Abstract: This invention relates to a method for cleaning and providing a protective shine to a hard surface. The method involves preparing an alkyd resin, dissolving the alkyd resin in one or more monoethylenically unsaturated monomers to form a mixture, dispersing the mixture in water in the presence of a surfactant to form an emulsion, and heating the emulsion to form an alkyd/acrylic latex which is applied to a hard surface.
Abstract: This invention relates to polyester/plasticizer blends which are useful as heat-shrinkable films or sheet in low temperature shrink packaging applications. The plasticizer is injected into the melt of the polyester. The plasticizer lowers the glass transition temperature, on-set temperature and shrink rate of the polyester. Film or sheet produced by the polyester/plasticizer blends is clear.
Abstract: This invention relates to a process for preparing aqueous solutions of O-alkylhydroxylamine salts. The process involves converting hydroxylamine salts to their O-alkyl derivatives without the isolation of intermediates. More specifically, the process involves three steps. The first step, Step (A), involves forming a ketoxime. The second step, Step (B), involves adding an alkylating agent to the ketoxime formed in Step (A). The third step, Step (C), involves hydrolysing the alkylated ketoxime formed in Step (B) to yield an O-alkylhydroxylamine salt. O-alkylhydroxylamine salts are important intermediates in the preparation of herbicides.
Abstract: The present invention relates to an ozone-friendly correction fluid which dries quickly and bonds to paper surfaces for correcting all types of markings. The ozone-friendly correction fluid does not contain halogenated solvents or hydrocarbon solvents. More specifically, the correction fluid contains an acrylic resin having a weight average molecular weight (Mw) less than 40,000, acetone, and an opacifying pigment. The ozone-friendly correction fluid of the present invention may contain up to 80% solids and may be applied for correcting typewritten, handwritten, photocopied or laser-jet printed markings formed from waterborne or solventborne inks.
Type:
Grant
Filed:
August 12, 1994
Date of Patent:
January 2, 1996
Assignee:
Eastman Chemical Company
Inventors:
Mahendra K. Sharma, Suzanne W. Dobbs, John J. Hiller
Abstract: This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and two split-flow paths each split-flow path containing one reverse flow path wherein the liquid polymer flow is reversed by means of a substantially semi-circular turnaround region; each tray having a liquid polymer tray inlet and a liquid polymer tray outlet for conducting a flow of the liquid polymer by means of a hydraulic gradient; each tray assembly being open at the top for escape of vapor from the liquid polymer flow to the central open vapor chimney; and each tray arranged in vertical disposition one above the other.
Type:
Grant
Filed:
May 2, 1994
Date of Patent:
November 14, 1995
Inventors:
Thomas L. Yount, Larry C. Windes, J. Wesley Adams
Abstract: This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and a single flow path composed of at least two loops wherein the liquid polymer flow is reversed by means of a substantially semi-circular turnaround wall; each tray having a liquid polymer tray inlet and a liquid polymer tray outlet for conducting a flow of the liquid polymer by means of a hydraulic gradient; each tray assembly being open at the top for escape of vapor from the liquid polymer flow to the central open vapor chimney; and each tray arranged in vertical disposition one above the other.
Type:
Grant
Filed:
May 2, 1994
Date of Patent:
November 7, 1995
Inventors:
Thomas L. Yount, J. Wesley Adams, Larry C. Windes
Abstract: The present invention relates to a high solids content waterborne correction fluid that dries quickly and bonds to paper surfaces for correcting laser-jet printed and photocopied markings. More specifically, the waterborne correction fluid contains a water-dispersible sulfopolyester, an opacifying pigment, and water.
Type:
Grant
Filed:
June 3, 1994
Date of Patent:
November 7, 1995
Assignee:
Eastman Chemical Company
Inventors:
Mahendra K. Sharma, Andy H. Singleton, John J. Hiller
Abstract: This invention relates to naphthalenedicarboxylic acid containing polymer compositions having reduced fluorescence. More specifically, the polymers contain at least 0.1 mole percent of a dicarboxylic acid selected from 2,6-naphthalenedicarboxylic acid or 2,6-naphthalenedicarboxylate ester, with 0.1 to 5 mole percent of a copolymerizable halogen containing aromatic compound. These polymers are useful for packaging applications where clarity and/or aesthetic appeal are of concern.
Type:
Grant
Filed:
May 5, 1994
Date of Patent:
May 23, 1995
Assignee:
Eastman Chemical Company
Inventors:
Allan S. Jones, David E. Mills, Mitchell A. Winnik
Abstract: This invention relates to a method for rendering a surface substantially impervious to alpha particle radiation such as that produced through radon decay. More particularly, the present invention involves applying to said surface an emulsion containing a sulfopolyester and a copolymer of vinyl acetate and dialkyl maleate, and a plasticizer. The sulfopolyester-acrylic copolymer blend produces a stable alpha particle radiation barrier on sand, rocks and soil.
Type:
Grant
Filed:
May 3, 1993
Date of Patent:
March 21, 1995
Assignee:
Eastman Chemical Company
Inventors:
Cephas H. Sloan, Robin L. Minga, T. Hugh Williams
Abstract: This invention relates to a process for preparing amido-carboxylic acids in water wherein hydrolysis and amidation reactions are conducted simultaneously in a single vessel. The process involves three steps. The first step involves heating at a temperature of 150.degree. C.-300.degree. C. for 2 to 10 hours, a mixture containing water, a nitrogen containing compound selected from the group consisting of a lactam and an amino acid, and a carboxylic acid or ester. The second step involves cooling the reaction mixture to obtain a two phase system containing an aqueous layer and an organic layer. The third step involves separating the amido-carboxylic acid containing organic layer from the aqueous layer. The presence of water aids in product isolation by phase separation and recycle of the reactants.Amido-carboxylic acids are used to make bleach activators for detergents.
Type:
Grant
Filed:
April 15, 1994
Date of Patent:
February 28, 1995
Assignee:
Eastman Chemical Company
Inventors:
George C. Zima, T. Hugh Williams, Gary P. Lutz, William C. Dickason
Abstract: This invention relates to naphthalenedicarboxylic acid containing polymer compositions having reduced fluorescence. More specifically, the polymers contain at least 0.1 mole percent of 2,6-naphthalenedicarboxylic acid or 2,6-naphthalenedicarboxylate ester, with 0.1 to 5 mole percent of a copolymerizable aromatic ketone. These polymers are useful for packaging applications where clarity and/or aesthetic appeal are of concern.
Type:
Grant
Filed:
May 5, 1994
Date of Patent:
February 28, 1995
Assignee:
Eastman Chemical Company
Inventors:
Allan S. Jones, David E. Mills, Mitchell A. Winnik
Abstract: This invention relates to a four step process for purifying amido-carboxylic acids by liquid/liquid extraction from a reaction mixture containing an amido-carboxylic acid. The first step involves distilling impurities from a reaction mixture containing an amido-carboxylic acid to form a distillate residue. The second step involves mixing the distillate residue with a nonpolar hydrocarbon solvent wherein the mixture is maintained above the freezing point of the distillate residue. The third step involves allowing the hydrocarbon solvent and distillate residue to achieve phase separation of an organic phase containing the amido-carboxylic acid and an organic phase containing the nonpolar hydrocarbon solvent. The fourth step involves separating the organic phase containing the nonpolar hydrocarbon solvent from the organic phase containing the amido-carboxylic acid.
Type:
Grant
Filed:
April 15, 1994
Date of Patent:
February 28, 1995
Assignee:
Eastman Chemical Company
Inventors:
George C. Zima, T. Hugh Williams, Mark R. Shelton
Abstract: This invention relates to naphthalenedicarboxylic acid containing polymer compositions having reduced fluorescence. More specifically, the process involves melt blending a naphthalenedicarboxylic acid containing polymer with 0.1 to 5 weight percent of a fluorescence quenching compound selected from a halogen containing aromatic compound, an aromatic ketone or a naphthol compound and thermoforming the blend into an article. The blends are useful for packaging applications where clarity and/or aesthetic appeal are of concern.
Abstract: This invention relates to a poly(ethylene 2,6-naphthalene dicarboxylate) composition having reduced fluorescence. More specifically, the composition contains poly(ethylene 2,6-naphthalene dicarboxylate) with 0.1 to 5 mole percent of a copolymerizable halogen containing aromatic compound. The polyesters are useful for packaging applications where clarity and/or aesthetic appeal are of concern.
Type:
Grant
Filed:
August 9, 1993
Date of Patent:
February 21, 1995
Assignee:
Eastman Chemical Company
Inventors:
Allan S. Jones, David E. Mills, Mitchell A. Winnik
Abstract: This invention relates to poly(ethylene 2,6-naphthalene dicarboxylate) blends having reduced fluorescence. More specifically, the process involves melt blending poly(ethylene 2,6-naphthalene dicarboxylate) with 0.1 to 5 weight percent of a fluorescence quenching compound selected from a halogen containing aromatic compound, an aromatic ketone or a naphthol compound and thermoforming the blend into an article. The blends are useful for packaging applications where clarity and/or aesthetic appeal are of concern.