Patent · US Active

Stain-blocking aqueous coating composition

US8709609B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

Akzo Nobel Coatings International B.V. · NL

Inventors

Alice Jungen · Bergheim, DE
Jörg Schulz · Lustenau, AT
Thomas Bernhofer · Cologne, DE

Key dates

Filing date	Dec 14, 2010
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Apr 20, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31989
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A stain blocking water borne coating composition is disclosed, said composition comprising (a) a styrene acrylic resin and, (b) a substituted styrene acrylate copolymer, wherein, by weight, said styrene acrylic resin is provided in excess of said substituted styrene acrylate copolymer. A method is also disclosed whereby this water-borne coating composition is applied to a substrate comprising water extractable staining agents, such as a tannin-containing open grain natural wood.

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