Patent · US Active

Polyester elastomer and compositions thereof

US7638591B2 · kind B2 · utility

2Cited by

4References

19Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

James Michael McKenna · Hockessin, US
Edward Maxwell de Brant Smith · Wilmington, US
David J. Wrigley · Athenaz, CH

Key dates

Filing date	Mar 30, 2006
Grant date	Dec 29, 2009
Priority date	—
Expiry date	Jan 26, 2027

Classification

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

Abstract

Polyetherester elastomers comprising about 25 to about 59 weight percent poly(trimethylene ether) ester soft segments and about 41 to about 75 weight percent hard segments, wherein the poly(trimethylene ether) ester soft segments are derived from poly(trimethylene ether) glycol having a number average molecular weight of about 600 to about 2500. Compositions thereof and articles made therefrom are disclosed.

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