Patent · US Expired

Hydroxy functional copolymers, a process for the preparation and their use as binders or binder components

US5064921A · kind A · utility

9Cited by

6References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Harald Blum · Wachtendonk, DE
Josef Pedain · Cologne, DE
Peter Hohlein · Kempen, DE
Christian Wamprecht · Neuss, DE

Key dates

Filing date	May 25, 1990
Grant date	Nov 12, 1991
Priority date	—
Expiry date	May 25, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2810/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to hydroxy functional polyacrylate copolymers having a molecular weight (M.sub.n) of about 2000 to 30,000 and containing PA1 a) about 1 to 70% by weight of structural units corresponding to the formula ##STR1## The present invention also relates to a process for the preparation of these hydroxy functional copolymers by reacting the corresponding anhydride functional copolymers with amino alcohols. Finally, the present invention also relates to the use of these hydroxy functional copolymers as binder components in combination with polyisocyanates for the production of polyurethane lacquers, coatings, sealants, adhesives or printing inks.

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