Coating processes, compositions and substrates coated with maleic anhydride copolymers having the anhydride moieties reacted with hydrozine or its derivatives

US4083835A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinz Pohlemann · Schifferstadt, DE
• Hermann Gausepohl · Mutterstadt, DE
• Herbert Naarmann · Wattenheim, DE

Key dates

• Filing date: Jun 25, 1976
• Grant date: Apr 11, 1978
• Expiry date: Jun 25, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31935
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers which have a molecular weight of from 600 to 24,500, and which contain from 0.1 to 60 per cent by weight of succinic acid hydrazide units and from 99.9 to 40% by weight of one or more ethylenically unsaturated monomers which are copolymerizable with maleic anhydride, are used as coating agents and binders.