General Electric Company

Other

Gary F Smith

Edward Norman Peters

Daniel W Fox

John A Tyrell

Robert Russell Gallucci

Paul Dean Sybert

John B Yates

Timothy Edward Banach

Jan Bussink

Johannes Hubertus Lohmeijer

Gregory R Chambers

Reinoud J Gaymans

Bimal Ramesh Patel

Antoinette Cornelia Van Bennekom

Ilias Nicholas Mamalis

A moldable linear polyester resin consisting essentially of a polyester having the formula: ##STR1## where R is an alkyl from 1 to 6 carbon atoms and n is greater than about 70, said polyester resin being derived from the transesterification reaction of a starting DMCD and a starting CHDM wherein the trans-cis ratio of repeating units derived from DMCD is preferably greater than about 8 to 1, and the trans-cis ratio of repeating units derived from DMCD is preferable greater than about 1 to 1, said polyester resin having crystalline properties with a preferable viscosity greater than 4500 poise and a melting temperature greater than 216 degrees Centigrade.

Crystalline polyester resins and process for their preparation

Disclosed are polyesteramide resin compositions having amide units of formula (I): ##STR1## and the units of the formula (II): ##STR2## wherein the polyesteramide is substantially devoid of units derived from butane diol. The ratio of (I) to (II) in the polyesteramide is preferably less than 1:3. Preferred polyesteramides have at least 80% of units of formula (I) separated by at least one of the units of formula (II).

Compositions of polyesteramides

Novel polyesters prepared from a diol, a dicarboxylic acid or ester forming reactive derivative thereof and an aromatic amino acid, ester or alcohol are disclosed.

Amine-functionalized polyester

In accordance with the invention, there are provided thermoplastic compositions comprising an admixture of:

Compatibilized compositions of polyphenylene ether, polyester resins and

Copolymers are prepared by the interaction of a melt mix comprising a high molecular weight poly(alkylene arylate) resin with a high molecular weight polycarbonate or polyester carbonate and a catalyst, such as diphenyl phosphate. The copolymers are tough and are useful as molding compounds and are capable of maintaining dimensional stability at temperatures approaching their singale glass transition temperature. The copolymers are characterized by having substantially no content of polyester homopolymer and a ratio of arylate linkages to dihydric phenol arylate linkages of not substantially less than 20:1.

Process for the preparation of polyester/polycarbonate copolymers

A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic condensation polymers containing hetero groups.

Polycarbonate/ester hetero group condensation polymer blends

Polycarbonate/imide hetero group condensation polymer blends

A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic polymers containing hetero groups.

Polycarbonate/addition polymer blends

Improved copolyether ester elastomers having excellent melt and crystallization temperatures as well as improved compression set as compared to prior art copolyetheresters are prepared by incorporating therein hexahydrophthalic ester polymer blocks.

Copolyetherester-hexahydrophthalate ester-block copolymers

Improved copolyether ester elastomers having excellent melt and crystallization temperatures as well as improved compression set as compared to prior art copolyetheresters are prepared by incorporating therein dimer ester polymer blocks.

Copolyetherester-dimer ester-block copolymers

Polycarbonate/condensation polymer blends

Compositions of an aromatic polycarbonate, a polysulfone carbonate and a filler are disclosed which have good electrical properties, high modulus and molten solder resistance.

Thermoplastic polycarbonate-polysulfone carbonate molding compositions

Thermoplastic compositions which are a solution of polycarbonate and poly(ethylene terephthalate) resins are described. These solutions are produced by melt admixture of a polycarbonate prepared from bis(3,5,dimethyl-4-hydroxy phenyl) sulfone and 2,2-bis(4-hydroxy-phenyl) propane and polyethylene terephthalate) to provide the composition with a single glass transition point.

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Pittsfield, MA, United States of America

Gary F Smith