Eastman-kodak Company

Eastman Chemical Company

Winston J Jackson, Jr

John C Morris

Herbert F Kuhfuss

William Ronald Darnell

Joseph J Watkins

W Ronald Darnell

Cephas H Sloan

Gerald P Morie

David R Fagerburg

Jean Carroll Fleischer

Theodore R Walker

Willis C Wooten, Jr

Eric Gray Olsen

Bruce C Bell

Gary G Gebeau

William R Darnell

Marc Alan Strand

Thomas H Wicker, Jr

Harry R Musser

William C Dickason

Mary B Martin

James R Bradley

This invention relates to a method of preparing a reinforced polyester composition comprising the steps of: I. mixing

Reinforced polyester compositions and method of making same

This invention concerns a process for preparing diketones and keto-acids by reacting a dicarboxylic acid and an aromatic compound in the presence of an alkylsulfonic acid such as methanesulfonic acid and a phosphorus pentoxide. The diketones and keto-acids can be used to prepare polyketones which are useful as molding plastics, coatings, films, fibers, and the like.

Process for preparing diketones

The present invention relates to liquid crystalline polyesters which have surprisingly low isotropic transition temperatures. The invention further relates to a new process for preparing containers which have more uniform properties made from certain liquid crystalline polyesters. Also, the present invention relates to molded objects comprising certain liquid crystalline polyesters. The liquid crystalline polyesters disclosed herein are derived from 2,6-naphthalenedicarboxylic acid, 4,4'-biphenol, hydroquinone, and p-hydroxybenzoic acid.

Liquid crystalline polyester

Disclosed are melt-processable wholly aromatic polyesters prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, hydroquinone and 4,4'-biphenol.

Polyesters from terephthalic acid, 2,6-naphthalenedicarboxylic acid,

Disclosed are blends of about 99 to about 10 weight % of poly(ethylene terephthalate) and about 1 to about 90 weight % of a polyester of trans-4,4'-stilbenedicarboxylic acid and at least one aliphatic glycol having 2 to 16 carbon atoms. The blends have improved gas barrier properties and improved chemical resistance.

Blends of poly (ethylene terephthalate) and

Disclosed are melt-processable wholly aromatic polyesters prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, and hydroquinone.

Polyesters from terephthalic acid, 2,6-naphthalenedicarboxylic acid and

Melt processable copolyesters having improved thermal stability are prepared from 1,4-butanediol, minor amounts of trans-4,4'-stilbenedicarboxylic acid and a dicarboxylic acid selected from terephthalic acid, isophthalic acid, and mixtures thereof.

Thermally stable polyesters containing trans-4,4'-stilbenedicarboxylic

Disclosed is a poly(ether-ketone) having an inherent viscosity of at least 0.4 and consisting of the repeating unit ##STR1## wherein each Ph is 1,4-phenylene. The poly(ether-ketone) is derived from two specific reactants, 1,3-bis-(4-phenoxybenzoyl)benzene and 4,4'-oxydibenzoic acid which may be reacted in the presence of methanesulfonic acid and phosphorus pentoxide.

Poly (ether-ketone)

This invention concerns a process for preparing diketones and keto-acids by reacting a dicarboxylic acid and an aromatic compound in the presence of an alkylsulfonic acid such as methanesulfonic acid and an organic anhydride compound such as methanesulfonic anhydride or trifluoroacetic anhydride. The diketones and keto-acids can be used to prepare polyketones which are useful as molding plastics, coatings, films, fibers, and the like.

Process for preparing diketones and keto-acids

Disclosed are polyesters comprised primarily of residues of 4,4'-biphenyldicarboxylic acid, ethylene glycol and 1,4-butanediol. Articles injection-molded from the polyesters exhibit a unique combination of properties including unusually high tensile strength and excellent heat resistance, flexural modulus and resistance to chemicals and solvents.

Copolyesters of 4,4'-biphenyldicarboxylic acid, 1,4-butanediol and

Disclosed is a process for the preparation of poly(ester-carbonates) wherein (1) an aromatic diol, (2) methyl phenyl carbonate and (3) an alkyl carboxylate ester component selected from an aromatic dicarboxylate ester, a hydroxy aromatic carboxylate ester or a mixture thereof are contacted in the presence of a transesterification/polycondensation catalyst under transesterification/polycondensation conditions of pressure and temperature.

Process for the preparation of poly(ester-carbonates)

Solid phase polyarylate process

Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and ethylene glycol. The copolyesters exhibit unusually high tensile strength.

Copolyesters from 4,4'-biphenyldicarboxylic acid,

Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,6-hexanediol and 1,4-butanediol. The copolyesters exhibit unusually high tensile strengths.

Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,6-hexanediol and

Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,6-hexanediol and ethylene glycol. Injection-molded bars of the coplyesters exhibit unusually high stiffness and tensile strength compared to polyesters described in the art.

Growing community of inventors

Kingsport, TN, United States of America

Winston J Jackson, Jr