Patent · US Expired

Coatings prepared from prepolymers and aromatic diamines having at least one alkyl substituent in an ortho position to each amino group

US4463126A · kind A · utility

7Cited by

3References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hermann Gruber · Leverkusen, DE
Wolfgang Wellner · Bensberg, DE

Key dates

Filing date	Jan 27, 1983
Grant date	Jul 31, 1984
Priority date	—
Expiry date	Jan 27, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31598
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of coatings using a coating compound based on a system comprising (i) an isocyanate prepolymer based on isophorone diisocyanate and polyalkylene ether polyols having a hydroxyl functionality of 2 to 3 and (ii) at least one diprimary aromatic diamine having at least one alkyl substituent with 2 to 3 carbon atoms in an ortho-position to each amino group.

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