Patent · US Active

Transparent ionomeric films from blends of ionomeric copolymers

US8338539B2 · kind B2 · utility

2Cited by

22References

6Claims

0Family size

Assignee

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

Inventors

Richard Arhart · Wilmington, US
Geraldine M. Lenges · Wilmington, US

Key dates

Filing date	Apr 21, 2008
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Apr 16, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is a film obtained from a blend of chemically distinguishable copolymers, wherein the film has a light transmission of at least 85%, and/or a haze of less than 6%, and wherein the blend comprises a component copolymer has a secant modulus of less than 15,000 when cast independently into a film.

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