Patent · US Active

Carboxylate-containing polymers for metal surface treatment

US8394208B2 · kind B2 · utility

0Cited by

13References

14Claims

0Family size

Assignee

BASF SE

Inventors

Frank Dietsche · Schriesheim, DE
Helmut Witteler · Monsheim, DE
Matthias Kluglein · Ludwigshafen, DE
Frank Klippel · Ludwigshafen, DE

Key dates

Filing date	Mar 23, 2010
Grant date	Mar 12, 2013
Priority date	—
Expiry date	Apr 17, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05D7/54
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a composition for treating surfaces, comprising a copolymer as component A, synthesized from (meth)acrylic acid or salts thereof, a carboxylate-containing monomer and/or monomers containing groups containing phosphoric and/or phosphoric acid or salts thereof, and further comonomers if desired, to a passivating layer on a metal surface, which comprises component A, to a process for forming said passivating layer, and to the use of the composition of the invention to passivate a metal surface.

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