Patent · US Expired

Reversible cross-linking of maleic anhydride copolymers

US3933747A · kind A · utility

7Cited by

3References

4Claims

0Family size

Assignee

THE DOW CHEMICAL COMPANY · US

Inventors

Robert M. Nowak · Midland, US
Kenneth J. Guilette · Menominee, US
Eugene R. Moore · Midland, US

Key dates

Filing date	Apr 2, 1971
Grant date	Jan 20, 1976
Priority date	—
Expiry date	Apr 2, 1991

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/53
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Copolymers containing from 5 to 25 mole percent of anhydride, such as maleic anhydride, have improved, thermally induced reversible cross-linking characteristics when the crosslinking agent is selected from certain hydroxyl containing derivatives of bisphenol A.

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