ADDITION CURABLE TYPE SILICONE RESIN COMPOSITION, SILICONE CURED PRODUCT AND OPTICAL DEVICE

• Main Author: KOBAYASHI YUKIHITO
• Format: Patent
• Language: English; Japanese
• Published: 01.09.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide an addition curable type silicone resin composition having a low refractive index from which a silicone cured product that has high transparency even in use under a high temperature condition after curing and has less hardness change and mass reduction is given.SOLUTION: An addition curable type silicone resin composition contains (A) organopolysiloxane having an alkenyl group bonded to a silicon atom and a group represented by CF3(CH2)a- bonded to a silicon atom, (B) organohydrogen polysiloxane having a hydrogen atom bonded to a silicon atom, (C) organopolysiloxane having a group represented by the following general formula (1) bonded to a silicon atom, and a group represented by CF3(CH2)a- bonded to a silicon atom, and (D) a platinum group metal-based catalyst.SELECTED DRAWING: None 【課題】低屈折率の付加硬化型シリコーン樹脂組成物であって、硬化後に、高温条件での使用においても透明性が高く硬度変化及び質量減少の少ないシリコーン硬化物を与える付加硬化型シリコーン樹脂組成物を提供する。【解決手段】（Ａ）ケイ素原子に結合したアルケニル基及びケイ素原子に結合したＣＦ３（ＣＨ２）ａ－で表される基を有するオルガノポリシロキサン、（Ｂ）ケイ素原子に結合した水素原子を有するオルガノハイドロジェンポリシロキサン、（Ｃ）ケイ素原子に結合した下記一般式（１）で表される基を有し、かつ、ケイ素原子に結合したＣＦ３（ＣＨ２）ａ－で表される基を有するオルガノポリシロキサン、（Ｄ）白金族金属系触媒を含有するものである付加硬化型シリコーン樹脂組成物。TIFF2023122154000023.tif4368【選択図】なし