Patent · US Active

Polyester blends

US9062197B2 · kind B2 · utility

3Cited by

63References

15Claims

0Family size

Assignee

Eastman Chemical Company · US

Inventors

Mark Allan Treece · Jonesborough, US
Gary Michael Stack · Bristol, US
Daniel Henry Bolton · Kingsport, US

Key dates

Filing date	Mar 22, 2010
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Nov 3, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyester blends comprising (1) polyesters prepared from terephthalic acid, 100 to 5 mol % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 0 to 95 mol % 1,4-cyclohexanedimethanol and (b) polyesters prepared from terephthalic acid and alkylene glycol. The blends may also contain an impact modifier and a phosphorous stabilizer. These blends can have a combination of thermal stability and toughness—making the materials useful in engineering molding plastics, packaging, films, and fibers.

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