Patent · US Expired

Lacquer binder containing graft copolymer and polyisocyanates

US4837273A · kind A · utility

8Cited by

1References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Christian Wamprecht · Neuss, DE
Manfred Schonfelder · Leverkusen, DE
Peter Hohlein · Kempen, DE
Lothar Kahl · Bensberg, DE

Key dates

Filing date	Feb 8, 1988
Grant date	Jun 6, 1989
Priority date	—
Expiry date	Feb 8, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D151/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to new binder combinations comprising PA0 (A) 99-30 parts by weight of OH-functional graft copolymer resins prepared by copolymerization of a polybutadiene having a molecular weight of from 500 to 10000 and containing more than 30% of 1,2-vinyl structure with selected olefinically unsaturated monomers and PA0 (B) 1 to 70 parts by weight of a multifunctional crosslinking resin, preferably a polyisocyanate resin. The new binder combinations are suitable for preparing coatings having a very high level of elasticity and an excellent surface hardness.

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