C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/12 (2006.01) C08G 18/78 (2006.01) C08L 33/06 (2006.01) C09D 133/06 (2006.01) C09D 175/12 (2006.01)
Patent
CA 2261082
The present invention relates to polyurethane-polyacrylate hybrid dispersions comprising A) 20 to 99% by weight, based on resin solids, of a polyurethane wherein i) the polyurethane is rendered hydrophilic by ionic and/or nonionic hydrophilic groups and ii) the polyisocyanate component used to prepare the polyurethane contains an aliphatic or cycloaliphatic polyisocyanate containing allophanate groups, and B) 1 to 80% by weight, based on resin solids) of a polyacrylate polymer, wherein the sum of components A and B is 100'%, based on the total weight of A) and B). The present invention also relates to the use of these hybrid dispersions for coating substrates, in particular wood.
Blum Harald
Brahm Martin
Irle Christoph
Kremer Wolfgang
Luhmann Erhard
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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