Aqueous dispersions, containing hydrazine derivatives, of carbonyl-containing copolymers

US4250070A · kind A · utility

Assignee

• BASF SE

Inventors

• Gregor Ley · Wattenheim, DE
• Erich Penzel · Heidelberg, DE
• Walter Rebafka · Eppelheim, DE
• Kaspar Bott · Mannheim, DE

Key dates

• Filing date: Jan 16, 1979
• Grant date: Feb 10, 1981
• Expiry date: Jan 16, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L101/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous dispersions of carbonyl-containing copolymers, which dispersions contain from 0.02 to 1 mole, per mole of carbonyl group, of organic hydrazine derivatives possessing 2 or more hydrazine radicals, and from 0.0002 to 0.02 mole, per mole of the hydrazine derivatives, of heavy metal ions give coatings, impregnations and finishes which are particularly easy to cross-link.