C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/102, 117/183
C08F 246/00 (2006.01) C08F 216/00 (2006.01) C09D 157/04 (2006.01)
Patent
CA 1251599
CROSS-LINKABLE POLYMER RESINS AND USE THEREOF AS BINDERS FOR COATING AGENTS ABSTRACT OF THE DISCLOSURE The present invention is directed to cross- linkable, hydroxyl group-containing polymer resins which are obtained by copolymerizing olefinically- unsaturated monomers and are suitable as binder components for lacquers, the polymer resins having a hydroxyl number of about 20 to 400, an average osmo- metrically-determined molecular weight of about 500 to 30,000 and a molecular inhomogeneity U of about 0.5 to 15, characterized in that they contain about 0.2 to 80 by weight, preferably about 10 to 70% by weight, based on the total weight of the copolymers, of incorporated monomers selected from olefinically- and acety- lenically-unsaturated aliphatic diols having 4 carbon atoms, the ether group-containing alkoxylation products thereof with a hydroxyl number of about 50 to 900, the reaction products of these diols with .epsilon.-caprolactone in a mol ratio of diol: -caprolactone of about 1:0.2 to 1:10 and any mixtures of these components. The present invention is also directed to the use of the above polymer resins as binders for coating compositions.
486857
Hohlein Peter
Pedain Josef
Riberi Bernd
Schmidt Manfred
Sonntag Michael
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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