C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 7/06 (2006.01) C08F 283/12 (2006.01) C08F 290/04 (2006.01) C08F 290/06 (2006.01) C09D 133/12 (2006.01) C09D 183/07 (2006.01) C08F 18/14 (2006.01) C08F 20/18 (2006.01) C09D 131/08 (2006.01)
Patent
CA 2357347
The invention relates to levelling agents for surface coatings having a weight-average molecular weight of from 5000 to 100,000. The levelling agent is a branched polymer comprising a free-radically or ionically polymerized base molecule into which macromonomeric units containing at one end a monomeric unit which has an ethylenically unsaturated bond and possessing a weight-average molecular weight of from 1000 to 30,000 have been incorporated by free-radical or ionic copolymerization, the weight fraction of the macromonomeric units, based on the total weight of the branched polymer, being from 1 to 60% by weight. The invention further relates to the use of appropriate polymers as levelling agents for coating formulations and to coating formulations comprising the levelling agents of the invention.
Bubat Alfred
Frank Albert
Haubennestel Karlheinz
Byk-Chemie Gmbh
Goudreau Gage Dubuc
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