Patent · US Active

Aqueous, highly cross-linked two-component polyurethane coating system, method for the production and use thereof

US7825210B2 · kind B2 · utility

1Cited by

5References

41Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

Norbert Steidl · Trostberg, DE
Alois Maier · Waldkraiburg, DE
Franz Wolfertstetter · Palling, DE

Key dates

Filing date	Apr 23, 2004
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Jul 23, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/6659
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An aqueous highly cross-linked two-component polyurethane coating system is described with reduced hydrophilicity and improved resistance to chemicals which can be obtained by a) producing a binder component based on an aqueous solution or dispersion of low-molecular hydroxyfunctional and/or aminofunctional oligourethanes or polyurethanes and b) by subsequently reacting the binder component a) with a cross-linking component (H) in a ratio of 3:1 to 5:1, wherein water-dispersible polyisocyanates are used as the cross-linking component (H).

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