Patent · US Expired

Liquid two-component coating compositions

US5707741A · kind A · utility

13Cited by

11References

11Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Michael Hoenel · Wiesbaden, DE
Armin Pfeil · Kaufering, DE
Thomas Budnick · Essen, DE
Heiner Schwan · Wuppertal, DE

Key dates

Filing date	Apr 26, 1996
Grant date	Jan 13, 1998
Priority date	—
Expiry date	Apr 26, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention relates to coating compositions including one or more resins having amino-reactive groups; one or more polyamine curing agents; and one or more aminourethanes. The aminourethanes can be reaction products of (i) oligomeric or polymeric compounds which contain at least one, preferably two or more terminal 2-oxo-1,3-dioxolane groups (cyclic carbonate groups), and (ii) amines containing at least one primary, preferably two or more primary and, if desired, also secondary and tertiary amino groups. The ratios of equivalents of C1):C2) typically is from 1:1 to 1:10, preferably from 1:1.05 to 1:5 and particularly preferably from 1:1.1 to 1:2, and the end product preferably contains one or more free primary amino groups. The composition further may contain, if desired, pigments, fillers, one or more organic solvents, water and conventional additives.

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