Patent · US Expired

Aqueous binder compositions having a long processing time and their use in coating compositions

US5741849A · kind A · utility

7Cited by

9References

13Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Harald Blum · Wachtendonk, DE
Eberhard Arning · Kaarst, DE
Rolf Roschu · Willich, DE
Josef Pedain · Cologne, DE

Key dates

Filing date	Jun 19, 1996
Grant date	Apr 21, 1998
Priority date	—
Expiry date	Jun 19, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to an aqueous binder composition having a long processing time (time within which the mixture can be processed without loss of quality) based on aqueous dispersions or solutions of binder mixtures, which contain at least one hydroxyl-group containing polyester dispersion or solution, at least one physically drying, aqueous polyurethane dispersion that is substantially free from hydroxyl or amino groups, and a polyisocyanate. The present invention also relates to the use of these binders in lacquers and coating compositions, in particular for coating rigid, non-flexible substrates.

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