Patent · US Expired

Poly (aryl ether)s

US4473684A · kind A · utility

10Cited by

7References

17Claims

0Family size

Assignee

UNION CARBIDE CORPORATION · US

Inventors

Louis M. Maresca · Montgomery, US
Herbert Chao · Paoli, US

Key dates

Filing date	Apr 18, 1983
Grant date	Sep 25, 1984
Priority date	—
Expiry date	Apr 18, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G75/23
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Poly(aryl ether)s which contain at least 20% by weight of bis-(3,5-dimethyl-4-oxyphenyl)sulfone structural units exhibit improved glass transition temperatures, improved flame resistance, improved gas permeability and improved alloying compatibility.

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