Polymerisable composition

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 220/06 (2006.01) C08F 2/48 (2006.01) C08F 8/00 (2006.01) C08F 8/14 (2006.01) C08F 220/30 (2006.01) G03F 7/033 (2006.01) H05K 3/28 (2006.01)

Patent

CA 2480421

The present invention relates to functionalized acrylate polymers, a process for their preparation, photopolymerizable compositions comprising these polymers and the use of the compositions, especially in the production of electronic components. The functionalized acrylate polymers are reaction products comprising at least a) acrylic acid or methacrylic acid or a mixture of acrylic and methacrylic acid and b) a (meth)acrylic ester of substituted or unsubstituted phenol, C1-C8-hydroxyalkylbenzene or C1-C8-hydroxyalkoxybenzene and methyl (meth)acrylate in a molar ratio of from 5.95 to 100.0, 5-90% of the acrylic or methacrylic acid units having reacted with a glycidylvinyl compound.

La présente invention se rapporte à des polymères d'acrylate fonctionnalisés, à un procédé de préparation de ces derniers, à des compositions photopolymérisables comprenant lesdits polymères et à l'utilisation de ces compositions, en particulier dans la production de composants électroniques. Les polymères d'acrylate fonctionnalisés de l'invention sont des produits réactionnels renfermant au moins : a) un acide acrylique ou méthacrylique ou un mélange d'acide acrylique et méthacrylique et b) un ester (méth)acrylique de phénol substitué ou non substitué, un hydroxyalkylbenzène C¿1?-C¿8? ou un hydroxyalcoxybenzène C¿1?-C¿8? et un méthyle (méth)acrylate selon un rapport molaire d'environ 5,95 à 100,0, 5 à 90 % des motifs acide acrylique ou méthacrylique ayant réagi avec un composé glycidylvinyle.

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