Kaneka Corporation

Kancka Corporation

Atsushi Tsukao

Youichi Matsuo

Hiroki Fukaumi

Shinji Kagitani

A curable composition includes a condensation product having a weight average molecular weight of 30,000 or less and a curing agent, the condensation product being obtained by hydrolysis and condensation of a first and second silane compound in the presence of a neutral salt catalyst. The condensation product also has a ratio Y/X of 0.2 or less, wherein X is the number of moles of an ORgroup directly bonded to silicon atoms of the first and second silane compounds, and Y is the number of moles of an ORgroup directly bonded to a silicon atom of the condensation product. The first silane compound is represented by R&#x2014;(SiR(OR)), and the second silane compound is represented by R&#x2014;(SiR(OR)).

Photocurable and thermosetting resin composition, cured product, and laminate

An active energy ray-curable composition includes (A) a condensate having a weight average molecular weight of 20,000 or less, and (B) a photoacid generator, with the condensate (A) being obtained by hydrolysis/condensation of: (I) a silane compound containing a hydrolyzable silyl group represented by formula (I): R&#x2014;(SiR(OR). A ratio (Y/X) of Y to X is 0.2 or less, where X represents the number of moles of ORgroups directly bonded to silicon atoms in the silane compound (I) which is a starting material of the condensate (A) and Y represents the number of moles of ORgroups directly bonded to silicon atoms in the condensate (A).

Active energy ray-curable composition

An active energy ray-curable resin composition includes 100 parts by weight of (A) a polymer whose main chain is a (meth)acrylic copolymer and which has, at an end of the main chain and/or at a side chain, at least one group having a silicon atom bonded to a hydrolyzable group represented by a formula (I): &#x2014;SiR(OR)(I), where Rrepresents a hydrogen atom or a C1-C10 alkyl group, Rrepresents a hydrogen atom or a monovalent hydrocarbon group selected from a C1-C10 alkyl group, a C6-C25 aryl group, and a C7-C12 aralkyl group, and a represents an integer of 0 to 2. The composition further includes 0.1 to 20 parts by weight of (B1) a secondary and/or tertiary amino group-containing silane compound, and 0.05 to 20 parts by weight of (C) a photoacid generator.

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Hyogo, Japan

Atsushi Tsukao