申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP1211267A1
公开(公告)日:2002-06-05
The invention relates to solvent-based coating compositions, comprising at least one hydroxy-functional (meth)acrylic copolymer I having an OH-value from 40 to 260 mg KOH/g, and a number average molecular mass (Mn) from 1,300 to 20,000 g/mol, which comprise the following polymerized components:
A. 15 to 70 wt-%, preferably 20 to 40 wt-% of at least one polyalkyleneglycol (meth)acrylate,
B. 0 to 70 wt-%, preferably 10 to 50 wt-% of at least one vinylaromatic olefinically unsaturated monomer capable of radical polymerization,
C. 10 to 60 wt-%, preferably 15-40 wt-% of at least one hydroxy-functional olefinically unsaturated monomer capable of radical polymerization that is different from A,
D. 0 to 60 wt-%, preferably 5-50 wt-% of at least one olefinically unsaturated monomer capable of radical polymerization that does not contain further functional groups and
E. 0 to 40 wt-%, preferably 0-30 wt-% of at least one olefinically unsaturated monomer capable of radical polymerization that is different from A, B, C and D,
whereby the sum of the proportions of components A to E totals 100 wt-%.
本发明涉及溶剂型涂料组合物,该组合物包含至少一种羟基官能团(甲基)丙烯酸共聚物 I,其羟基值为 40 至 260 毫克 KOH/克,平均分子质量(Mn)为 1,300 至 20,000 克/摩尔,其中包含以下聚合成分:
A.15 至 70 wt-%,最好是 20 至 40 wt-%的至少一种聚亚烷基乙二醇(甲基)丙烯酸酯、
B.0 至 70 wt-%,最好是 10 至 50 wt-%的至少一种能进行自由基聚合的乙烯 芳基烯烃不饱和单体、
C.10 至 60 wt-%,最好是 15 至 40 wt-%的至少一种不同于 A 的能进行自由基聚合的羟基官能团烯烃不饱和单体、
D.0 至 60 wt-%,最好是 5-50 wt-%的至少一种能进行自由基聚合且不含其他官能团的烯烃不饱和单体,以及
E.0-40 wt-%,最好是 0-30 wt-%的至少一种不同于 A、B、C 和 D 的能进行自由基聚合的烯烃不饱和单体、
其中 A 至 E 组份的比例总和为 100 wt-%。