Patent · US Expired

Process for the production of a multi-layer finish and a water-borne coating

US5760128A · kind A · utility

20Cited by

7References

5Claims

0Family size

Assignees

BASF Lacke · DE
Farben AG · DE

Inventors

Wolfgang Baltus · Munster, DE
Jan Berg · Sarpsborg, NO
Arnold Dobbelstein · Cologne, DE

Key dates

Filing date	Dec 27, 1993
Grant date	Jun 2, 1998
Priority date	—
Expiry date	Dec 27, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for the production of multi-layer finishes in which the base coating contains crosslinked polymer microparticles which are obtainable by PA1 (A) reacting a polyester-polyol or a mixture of polyester-polyols with a polyisocyanate or with a mixture of polyisocyanates and PA1 (B) when at least 25% of the NCO groups have reacted, dispersing the resulting reaction mixture in water.

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