Glass fiber-silsesquioxane composite molded article and method for producing same

Patent metadata

Field	Value
Publication number	US-9753186-B2
Application number	US-201013264535-A
Country	US
Kind code	B2
Filing date	Apr 14, 2010
Priority date	Apr 14, 2009
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

Disclosed is a glass fiber-silsesquioxane composite molded article containing glass fibers and a cured material of a silsesquioxane polymer composited therewith, wherein the silsesquioxane has a polyhedral structure or a partially polyhedral structure. The glass fiber-silsesquioxane composite molded article is preferably obtained by impregnating glass fibers with a composition containing at least one of silsesquioxanes represented by formula (A-1) to (A-3) and at least one of a curing agent, a polymerization initiator, and a hydrosilylation catalyst, or the silsesquioxane polymer and allowing a curing reaction to proceed.

First claim

The invention claimed is:

1. A glass cloth-silsesquioxane composite molded article, comprising:
a glass cloth; and
a cured product of silsesquioxane polymer that forms a composite with the glass cloth,
wherein the silsesquioxane has a cage structure or partial cage structure,
wherein the glass cloth-silsesquioxane composite molded article is obtained by impregnating the glass cloth with a composition containing at least one silsesquioxane having a polymerizable functional group represented by formula (A-3), and a curing agent, or a polymerization initiator,
and subjecting the resultant to a curing reaction:

wherein in the formula (A-3),
R independently represents hydrogen; an alkyl having 1 to 45 carbon atoms in which any hydrogen may be substituted by fluorine and nonadjacent —CH 2 — may be substituted by —O— or a cycloalkylene; a cycloalkyl having 4 to 8 carbon atoms; or an aryl in which any hydrogen may be substituted by an alkyl having 1 to 10 carbon atoms, halogen, or fluorine;
R 1 independently represents a group selected from an alkyl having 1 to 4 carbon atoms, cyclopentyl, cyclohexyl, and phenyl; and at least one of X represents an alkyl having 1 to 10 carbon atoms having a polymerizable functional group, a cycloalkyl having a polymerizable functional group, or a phenyl having a polymerizable functional group, and the remainder of X represents a group defined in the same manner as R 1 ,
wherein the polymerizable functional group of X is selected from group represented by the formulas (d) and (e)

wherein, R 2 represents an alkylene having 1 to 10 carbon atoms, one —CH 2 — in the alkylene may be substituted by —O— or 1,4-phenylene; and R 3 represents hydrogen or an alkyl having 1 to 6 carbon atoms.

2. The glass cloth-silsesquioxane composite molded article according to claim 1 , wherein: the curing agent is an acid anhydride or an amine; and the polymerization initiator is a cationic polymerization initiator or a radical polymerization initiator.

3. The glass cloth-silsesquioxane composite molded article according to claim 1 , wherein the glass cloth has a refractive index of 1.45 to 1.60.

4. The glass cloth-silsesquioxane composite molded article according to claim 1 , wherein the glass cloth-silsesquioxane composite molded article is obtained by mixing an epoxy resin or an oxetane resin into a composition containing the compound represented by the formula (A-3) and a curing agent, or a polymerization initiator, impregnating the glass cloth with the resultant mixture, and subjecting the resultant to a curing reaction.

5. A substrate for a liquid crystal display device, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

6. A substrate for an organic EL display device, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

7. A substrate for a plasma display, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

8. A substrate for a color filter, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

9. A substrate for a solar cell, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

10. A substrate for a touch panel, comprising the glass cloth-silsesquioxane composite molded article according to claim 1 .

Assignees

• Ikeno Hironori
• Yoshida Kazuhiro
• Jnc Corp

Inventors

• Ikeno Hironori
• Yoshida Kazuhiro

Classifications

• C08G77/20

  containing silicon bound to unsaturated aliphatic groups · CPC title

• C08J5/043

  with glass fibres · CPC title

• G02B1/04 Primary

  made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title

• G02F1/133305

  Flexible substrates, e.g. plastics, organic film · CPC title

• C08J2383/04

  Polysiloxanes · CPC title