Eastman Chemical Company

Charles R Tomlinson

Phillip Michael Cook

George G Mayfield

Michael D Hamlin

Lanny Calvin Treece

John M Staples

A gum base comprising a crosslinked branched polyester gel prepared from the process comprising: a) providing a first pre-gel composition having carboxyl end groups; b) providing a second pre-gel composition having hydroxyl end groups; c) removing either or both of the first and second pre-gel compositions from their respective reactors; d) combining the first and second pre-gel compositions to form a mixture; and e) processing the mixture in an extruder, a continuous processor, or a container thereby providing a crosslinked branched polyester gel.

Crosslinked branched polyesters

Process for crosslinked branched polyesters

A gum base comprising at least one crosslinked branched aliphatic biodegradable polyester comprising repeat units formed from at least one polyol having three to four hydroxy groups, or ester thereof, at least one dibasic acid, or ester thereof, and at least one long chain monocarboxylic acid, or ester thereof. The process of producing a crosslinked branched aliphatic biodegradable polyester gum base by reactive extrusion is also included.

Branched aliphatic polyesters

Growing community of inventors

Blountville, TN, United States of America

Charles R Tomlinson