Patent · US Active

Copolyesters plasticized with polymeric plasticizer for shrink film applications

US10329395B2 · kind B2 · utility

2Cited by

116References

13Claims

0Family size

Assignee

Eastman Chemical Company · US

Inventors

Wayne Ken Shih · Kingsport, US
Kimberley Carmenia Carico · Kingsport, US
Nancy Ellen Kinkade · St. Albans, US

Key dates

Filing date	Oct 15, 2018
Grant date	Jun 25, 2019
Priority date	—
Expiry date	Oct 15, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2467/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Disclosed is a shrink film containing a copolyester having a minimum crystallization half-time of at least 8.6 minutes and a polyester plasticizer having a weight-average molecular weight of 900 to 12,000 g/mol. The polyester plasticizer includes (i) a polyol component comprising residues of a polyol having 2 to 8 carbon atoms, and (ii) a diacid component comprising residues of a dicarboxylic acid having 4 to 12 carbon atoms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.