Patent · US Expired

Aqueous polymer dispersions as binders for non-blocking scratch-resistant and chemical-resistant coatings

US5596035A · kind A · utility

8Cited by

3References

15Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Ulrich D esor · Idstein, DE
Stephan Krieger · Hofheim, DE
Rolf Kuropka · Bad Soden, DE
Bernhard Momper · Weilburg, DE

Key dates

Filing date	Nov 10, 1994
Grant date	Jan 21, 1997
Priority date	—
Expiry date	Nov 10, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Autocrosslinking aqueous dispersions characterized by an MFT of from 0.degree. to about 50.degree. C. include at least one carbonyl-containing soft latex polymer having an MFT of below about 20.degree. C., at least one hard latex polymer having an MFT of above about 25.degree. C., and at least one polyfunctional carboxylic hydrazide. The aqueous polymer dispersions are used as binders for non-blocking, scratch-resistant and chemical-resistant coatings and as binders for clear coat and pigmented coating systems.

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