Patent · US Expired

Copolyester compositions

US4554303A · kind A · utility

16Cited by

6References

9Claims

0Family size

Assignee

EASTMAN KODAK COMPANY · US

Inventors

Frederick D. Petke · Kingsport, US
Charles W. Ramsey · Niles, US
Richard L. McConnell · Kingsport, US

Key dates

Filing date	Dec 14, 1984
Grant date	Nov 19, 1985
Priority date	—
Expiry date	Dec 14, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J167/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Disclosed are blends of low-melting, slowly crystallizing copolyesters or of substantially amorphous copolyesters having relatively high glass transition temperatures containing very small amounts of low-molecular-weight polyolefins. These blends have sharply increased crystallinity and crystallization rates and provide significant improvements in production because of the enhanced crystallization.

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