# US 9,753,186 B2 · Glass fiber-silsesquioxane composite molded article and method for producing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,753,186 B2 - Document ID: US9753186B2 - Status: Granted - Kind: B2 - Application number: 13/264,535 - Filed: 2010-04-14 - Published: 2012-03-01 - Granted: 2017-09-05 - Earliest claimed: 2009-04-14 - Assignees: Jnc Corporation - Applicants: Hironori Ikeno; Kazuhiro Yoshida - Inventors: Hironori Ikeno; Kazuhiro Yoshida - Web page: https://patentgrep.com/patent/US9753186B2 ## CPC - G02B 1/04: made of organic materials, e.g. plastics (G02B1/08 takes precedence) - C08G 77/04: Polysiloxanes - C08G 77/38: Polysiloxanes modified by chemical after-treatment - C08J 5/043: {with glass fibres} - C08L 83/06: containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) - C08G 77/12: containing silicon bound to hydrogen - C08G 77/20: containing silicon bound to unsaturated aliphatic groups - C08G 77/70: {Siloxanes defined by use of the MDTQ nomenclature} - C08J 2383/04: Polysiloxanes - C08L 2205/16: Fibres; Fibrils - G02F 1/133305: {Flexible substrates, e.g. plastics, organic film} - Y10T 428/2971: Impregnation - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## 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. ## Claims ### Claim 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 —CH2— 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; R1 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 R1, wherein the polymerizable functional group of X is selected from group represented by the formulas (d) and (e) wherein, R2 represents an alkylene having 1 to 10 carbon atoms, one —CH2— in the alkylene may be substituted by —O— or 1,4-phenylene; and R3 represents hydrogen or an alkyl having 1 to 6 carbon atoms. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 1) A substrate for a liquid crystal display device, comprising the glass cloth-silsesquioxane composite molded article according to claim 1. ### Claim 6 (depends on 1) A substrate for an organic EL display device, comprising the glass cloth-silsesquioxane composite molded article according to claim 1. ### Claim 7 (depends on 1) A substrate for a plasma display, comprising the glass cloth-silsesquioxane composite molded article according to claim 1. ### Claim 8 (depends on 1) A substrate for a color filter, comprising the glass cloth-silsesquioxane composite molded article according to claim 1. ### Claim 9 (depends on 1) A substrate for a solar cell, comprising the glass cloth-silsesquioxane composite molded article according to claim 1. ### Claim 10 (depends on 1) A substrate for a touch panel, comprising the glass cloth-silsesquioxane composite molded article according to claim 1.