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AssigneeTaiyo Ink Manufacturing Co., Ltd.
InventorsNoboru Kohiyama, Shigeru Ushiki
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A carboxyl group-containing photosensitive resin is obtained by reacting an unsaturated group-containing monocarboxylic acid (d) with a reaction product (c) of a phenolic novolak resin (a) and an alkylene oxide (b) and further reacting a polybasic acid anhydride (f) with the resultant reaction product (e). A photocurable and thermosetting composition comprising (A) the carboxyl group-containing photosensitive resin mentioned above, (C) a photopolymerization initiator, and (D) an epoxy resin, or further comprising (B) a photosensitive (meth)acrylate compound, preferably further comprising (E) an organic solvent and/or (F) a curing catalyst is useful as an ultraviolet-curable type printing ink, various resists and interlaminar insulating materials to be used in the manufacture of printed circuit boards, or the like.
A carboxyl group-containing photosensitive resin obtained by reacting an unsaturated group-containing monocarboxylic acid (d) with a reaction product (c) of a phenolic novolak resin (a) and an alkylene oxide (b) to give rise to a reaction product (e) and further reacting a polybasic acid anhydride (f) with the resultant reaction product (e), said photosensitive resin having an acid value in the range of 30 to 150 mg KOH/g.
An alkali-developable, photocurable and thermosetting composition, comprising (A) a carboxyl group-containing photosensitive resin obtained by reacting an unsaturated group-containing monocarboxylic acid (d) with a reaction product (c) of a phenolic novolak resin (a) and an alkylene oxide (b) to give rise to a reaction product (e) and further reacting a polybasic acid anhydride (f) with the resultant reaction product (e), (C) a photopolymerization initiator, and (D) an epoxy resin.
An alkali-developable, photocurable and thermosetting composition, comprising (A) a carboxyl group-containing photosensitive resin obtained by reacting an unsaturated group-containing monocarboxylic acid (d) with a reaction product (c) of a phenolic novolak resin (a) and an alkylene oxide (b) to give rise to a reaction product (e) and further reacting a polybasic acid anhydride (f) with the resultant reaction product (e), (B) a photosensitive (meth)acrylate compound, (C) a photopolymerization initiator, and (D) an epoxy resin.
Dependencies are inferred from the claim text.