Patent · US Expired

Solvent-free binder compositions and their use in one- and two-component coating compositions

US6410095B1 · kind B1 · utility

4Cited by

6References

11Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Martin Brahm · Siegen, DE
Gerhard Ruttmann · Burscheid, DE
Lutz Schmalstieg · Neunburg vorm Wald, DE

Key dates

Filing date	Sep 6, 1996
Grant date	Jun 25, 2002
Priority date	—
Expiry date	Sep 6, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC14C11/006
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to substantially solvent-free binder compositions containinga) a polyisocyanate component containing heteroallophanate groups and having aromatically-bound isocyanate groups,i) an NCO content of 3 to 16%,ii) an average functionality of 1.8 to 4,iii) an allophanate group content (calculated as C2N2O3, MW: 101) of 5 to 35% andiv) a hydrocarbon chain content of 10 to 65%, wherein the hydrocarbon chains are attached to allophanate groups via oxygen and have an average of 2 to 23 carbon atoms andb) an isocyanate-reactive component. The present invention also relates to the use of these binder compositions in one- and two-component coating compositions.

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