Eastman-kodak Company

Burns Davis

Robert Boyd Barbee

David R Fagerburg

Harry R Musser

Roy K Bass

Frederick D Petke

Larry A Minnick

James R Overton

Freddie A Shepherd

Willis C Wooten, Jr

Theodore F Gray, Jr

Roger M Schulken, Jr

A polyamide for use in fabrication of containers having good oxygen barrier properties and a high heat deflection temperature. The polyamides are prepared from benzylsuccinic acids and piperazines.

Polyamide compositions

The present invention provides polyamide resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyamide resin which comprises the reaction product of a diamine containing 2 to about 10 carbon atoms and a diacid component which comprises about 25 to 95 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and about 5 to about 75 mole percent of a naphthalene dicarboxylic acid. The polyamide resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Polyamide resin capable of forming containers having improved gas

The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 95 mole percent of oxydiacetic acid, and about 5 to about 95 mole percent of naphthalene dicarboxylic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Polyester resins capable of forming containers having improved gas

The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The polyester resin comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises terephthalic acid and oxydiacetic acid. The oxydiacetic acid is present in a concentration of about 5 to 50 mole percent, based upon the total amount of diacid. The polyester resin has an inherent viscosity of about 0.4 to 1.5. A preferred polyester is that derived from ethylene glycol, terephthalic acid, and about 10 to 40 mole percent oxydiacetic acid. The polyesters which are provided by the present invention may be formed into containers in the form of sheet, film, molded articles, such as bottles, and other such structures.

Polyester resins useful for forming containers having improved gas

Disclosed are polyesters prepared from hetero-atom-containing dicarboxylic acids and hetero-atom-containing diols. These polyesters have low permeability to oxygen and carbon dioxide and are useful in packaging applications such as for food and beverages.

Copolyesters from ether-containing glycols and acids

The present invention provides novel polyesteramides and containers having improved gas barrier properties formed therefrom. The novel polyesteramides comprise the reaction product of a diamine having 2 to about 20 carbon atoms, a diol containing up to about 24 carbon atoms, and a dicarboxylic acid component. The dicarboxylic acid component consists essentially of about 5 to 100 mole % of a specified first, heteroatom-containing dicarboxylic acid, and 0 to about 95 mole % of a second dicarboxylic acid containing up to about 24 carbon atoms. In the polyesteramide, the diamine component comprises about 10 to 90 mole % of the total diamine and diol components. The present invention further provides containers, such as molded containers, films, coextruded articles, laminated articles, etc., formed from the polyesteramides of the present invention.

Polyesteramides and containers having improved gas barrier properties

The present invention provides containers having unexpectedly superior gas barrier properties. The containers are formed from specified polyamides which comprise an aliphatic diamine and a diacid component which comprises a dicarboxylic acid containing a hetero atom.

Polyamide containers having improved gas barrier properties

The present invention provides containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises terephthalic acid and a second diacid selected from iminodiacetic acid, oxydiacetic acid, thiodiacetic acid, and mixtures thereof. The second diacid is present in a concentration of about 1 to 50 mole percent, based upon the total amount of diacid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. A preferred polyester is that derived from ethylene glycol, terephthalic acid, and oxydiacetic acid. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Polyester containers having improved gas barrier properties

Disclosed are copolyesterethers having an inherent viscosity of from about 0.8 to about 1.5 comprising

Copolyesterethers

Disclosed are copolyesterethers that can be formed into bottles, tubing, film and the like having improved clarity. The copolyetheresters have an inherent viscosity of from 0.8 to about 2.0 and comprise

Disclosed are high melt strength, blow-moldable polymers that can be formed into bottles, tubing, film and the like. The polymers are copolyetheresters having an inherent viscosity of from 1.0 to about 2.5 comprising

Copolyetheresters

Disclosed is a method for producing a relatively high molecular weight copolyester which comprises the steps of

Process for producing polyetherester elastomer

A composition comprised of an admixture of poly-(tetramethylene terephthalate) and poly(tetramethylene terephthalate) modified with dimer acid. This composition exhibits enhanced flexural modulus and enhanced flexural strength compared with a poly(tetramethylene terephthalate) which has been modified with dimer acid and contains an amount of dimer acid equivalent to the admixture.

Molding composition comprising a blend of poly (tetramethylene

Disclosed are polyesters composed of 1,4-cyclohexanedicarboxylic acid, terephthalic acid and 1,4-butanediol, wherein the 1,4-cyclohexanedicarboxylic acid is within a critical range of about 25 to about 58 mole percent. These polyesters exhibit desirable adhesive properties.

Growing community of inventors

Kingsport, TN, United States of America

Burns Davis