Patent · US Active

Low-solvent polyacrylate copolymer dispersions

US9593256B2 · kind B2 · utility

0Cited by

4References

6Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Marc Claudius Schrinner · Shanghai, CN
Heinz-Dietmar Gewiss · Meerbusch, DE
Nusret Yuva · Wermelskirchen, DE
Martin Melchiors · Leverkusen, DE

Key dates

Filing date	Dec 17, 2012
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Feb 14, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2810/50
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to an aqueous secondary copolymer dispersion comprising a copolymer (P) synthesized from a mixture of free-radically polymerizable monomers (M) comprising (M1) cycloaliphatic esters of acrylic and/or methylacrylic acid; (M2) vinyl esters of aliphatic carboxylic acids; (M3) hydroxy-functional, free-radically polymerizable monomers; (M4) carboxyl-functional, free-radically polymerizable monomers and (M5) hydroxyl- and carboxyl-free (meth)acrylic esters having C1 to C12 hydrocarbon radicals in the alcohol moiety and/or vinylaromatics. The mixture further comprises glycidyl esters of aliphatic carboxylic acids. The invention also relates to a method for the production of such a dispersion, to the use of the dispersion as a coating and as a binder in 2K polyurethane coatings.

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