Curable composition, transparent heat-resistant material, and use thereof

Patent metadata

Field	Value
Publication number	US-2016017076-A1
Application number	US-201414771010-A
Country	US
Kind code	A1
Filing date	Feb 27, 2014
Priority date	Feb 28, 2013
Publication date	Jan 21, 2016
Grant date	—

Abstract

The present invention provides a curable composition, which contains a crosslinking aid (B) containing three or more allyl groups in the molecule in an amount of 1 to 50 parts by mass, polyfunctional (meth)acrylic compound (C) in an amount of 5 to 50 parts by mass, and photopolymerization initiator (D1) and/or thermal polymerization initiator (D2) in an amount of 0.1 to 10 parts by mass, respectively, as a polymerization initiator (D) to 100 parts by mass of allyl group-terminated allyl ester oligomer (A);
wherein the crosslinking aid (B) containing allyl group is a compound containing three or more allyl groups in a molecule;

wherein the content of impurities derived from the crosslinking aid (B) in the curable composition is less than 0.1 mass %;

wherein the content of the (meth)acrylic compound containing a hydroxyl group in a molecule (C1) in the curable composition is 0.5 to 30 mass %.

First claim

1 . A curable composition, which contains a crosslinking aid (B) containing an allyl group in an amount of 0.5 to 100 parts by mass, polyfunctional (meth)acrylic compound (C) in an amount of 5 to 50 parts by mass, and photopolymerization initiator (D1) and/or thermal polymerization initiator (D2) in an amount of 0.1 to 10 parts by mass, respectively, as a polymerization initiator (D) to 100 parts by mass of allyl group-terminated allyl ester oligomer (A);
wherein allyl group-terminated allyl ester oligomer has a group represented by formula (1) as terminus

(in the formula, R represents a hydrogen atom or methyl group, A 1 represents one or more kinds of organic residue having an alicyclic structure and/or an aromatic ring structure derived from dicarboxylic acid);
and contains a component comprising a structure represented by formula (2) as a constituent unit;

(in the formula, A 2 represents one or more kinds of organic residue having an alicyclic structure and/or an aromatic ring structure derived from dicarboxylic acid, X represents one or more kinds of organic residue derived from polyhydric alcohol, with a proviso that X may have a branched structure through ester bonds, having a group represented by formula (1) as terminus and a structure represented by formula (2) as constituent unit),
wherein the crosslinking aid (B) containing allyl group is a compound containing three or more allyl groups in a molecule;
wherein the content of impurities derived from the crosslinking aid (B) in the curable composition is less than 0.1 mass %;
wherein the polyfunctional (meth)acrylic compound (C) includes a polyfunctional (meth)acrylic compound containing a hydroxyl group in a molecule (C1) and
wherein the content of the (meth)acrylic compound containing a hydroxyl group in a molecule (C1) in the curable composition is 0.5 to 50 mass %.

2 . The curable composition as claimed in claim 1 , wherein the crosslinking aid (B) is at least one member selected from triallyl isocyanurate (TAIL) and triallyl cyanurate (TAC).

3 . The curable composition as claimed in claim 1 , wherein the polyfunctional (meth)acrylic compound containing a hydroxyl group (C1) mainly comprises (meth)acrylate monomer or oligomer containing three or more (meth)acryloyloxy groups.

4 . The curable composition as claimed in claim 1 , wherein impurities derived from the crosslinking aid (B) contain a compound having two or less allyl groups in a molecule.

5 . A transparent heat-resistant material obtained by curing the curable composition claimed in claim 1 by irradiating light and/or by heating.

6 . An optical film, optical sheet, optical waveguide, optical lens, optical encapsulant, optical adhesive, light guide plate, window material or jig to prevent solder from scattering using the transparent heat-resistant material claimed in claim 5 .

7 . The curable composition as claimed in claim 2 , wherein the polyfunctional (meth)acrylic compound containing a hydroxyl group (C1) mainly comprises (meth)acrylate monomer or oligomer containing three or more (meth)acryloyloxy groups.

Assignees

• Showa Denko Kk

Inventors

• Inoue Hirofumi
• Mukobayashi Miyo

Classifications

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• C08F222/104

  of tetraalcohols, e.g. pentaerythritol tetra(meth)acrylate · CPC title

• C08F222/1006 Primary

  of polyhydric alcohols or polyhydric phenols · CPC title

• C08F2222/104

  Chemistry & Metallurgy · mapped topic

• C08F222/103

  of trialcohols, e.g. trimethylolpropane tri(meth)acrylate · CPC title