Patent · US Expired

Process for the preparation of coatings with hydantoin structures by the reaction of compounds containing carbodiimide groups with unsaturated carboxylic acids

US4853261A · kind A · utility

3Cited by

5References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Willi Dunwald · Leverkusen, DE
Hans Schlegel · Minneapolis, US
Reinhard Halpaap · Odenthal, DE
Josef Pedain · Cologne, DE

Key dates

Filing date	Apr 13, 1988
Grant date	Aug 1, 1989
Priority date	—
Expiry date	Apr 13, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/797
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for the production of coatings based on polymers having a hydantoin structure by reacting blocked polyisocyanate carrying carbodiimide and/or uretone imine groups with .alpha.,.beta.-unsaturated diicarboxylic acids or derivatives thereof at 50.degree. to 700.degree. C. said reaction being carried out on the substrate to be coated.

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