Photocurable composition

摘要

The present invention allows for a photocurable composition which exhibits stable physical characteristics in a heat resistance test and an oil resistance test, and exhibits good debubbling properties and excellent workability. A photocurable composition including components (A) to (C).
component (A): a compound that has a polymer obtained from a (meth)acrylic monomer as a main skeleton, and has at least two (meth)acrylic groups in the moleculecomponent (B): a (meth)acrylic monomer including a component (b-1) and/or a component (b-2)component (b-1): a (meth)acrylic monomer having a hydroxyl group in the molecule, in an amount of 0.1 to 50 parts by mass with respect to 100 parts by mass of the component (A), component (b-2): a (meth)acrylic monomer having a saturated alicyclic skeleton in the molecule, in an amount of 0.1 to 10 parts by mass with respect to 100 parts by mass of the component (A), component (C): a photoinitiator.

主权项

1. A photocurable composition comprising components (A) to (D),
component (A): a compound comprising a polymer obtained from a (meth)acrylic monomer as a main skeleton, and having at least two (meth)acrylic groups in a molecule; component (B): a (meth)acrylic monomer comprising a component (b-1) and a component (b-2);
component (b-1): a (meth)acrylic monomer having a hydroxyl group in a molecule, in an amount of 0.1 to 50 parts by mass with respect to 100 parts by mass of the component (A), wherein the (meth)acrylic monomer having a hydroxyl group in the component (b1) is at least one selected from the group consisting of 2-hydroxyethyl (meth)acrylate and 2-hydroxypropyl (meth)acrylate;component (b-2): a (meth)acrylic monomer having a saturated alicyclic skeleton in a molecule, in an amount of 0.1 to 10 parts by mass with respect to 100 parts by mass of the component (A); component (C): a photoinitiator; and component (D): fumed silica having a surface modified with a straight-chain alkyl group with two or more carbon atoms added thereto.