Eastman Chemical Company

Michael D Hamlin

Phillip Michael Cook

George G Mayfield

Lanny Calvin Treece

Charles R Tomlinson

Richard W Connelly

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

Process for making pre-gels for a cross-linked branched polyester

Disclosed is a process for whereby d-alpha-tocopheryl succinate (TS) can be crystallized in a short period of time by subjecting a fluid TS at particular temperature to a particular rate of shear for a particular time in order to accomplish crystallization. Then, while maintaining the crystallized TS at a temperature less than its melting point, we withdraw the crystallized TS from the region of shear flow. In a preferred embodiment of our process, crystallization is enhanced by use of a particular elongational rate for a particular time.

Process for crystallizing D-alpha-tocopheryl succinate

Growing community of inventors

Brockport, NY, United States of America

Michael D Hamlin