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公开(公告)号:US20210269643A1
公开(公告)日:2021-09-02
申请号:US17253744
申请日:2018-06-27
Applicant: DOW SILICONES CORPORATION
Inventor: Yan ZHENG , Zhongwei CAO , Qiang HUANG , Rui YANG , Sandrine TEIXEIRA de CARVALHO , Lujing XIE
IPC: C08L83/04 , C08K5/00 , H01M10/625 , H01M10/66
Abstract: A thermally conductive silicone composition is provided. The composition comprises: (A) an alkenyl group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane having an average of two to four silicon-bonded hydrogen atoms in a molecule, wherein an amount of the silicon-bonded hydrogen atoms in component (B) is 0.2 to 5 moles per mole of the alkenyl groups in component (A), and at least two of the silicon-bonded hydrogen atoms are located on the side chains of the molecule; (C) a hydrosilylation reaction catalyst; (D) a thermally conductive filler; (E) an alkoxysilane having an alkyl group containing 6 or more carbon atoms in a molecule; and (F) glass beads. A thermally conductive member is produced from the thermally conductive silicone composition. An electronic device has the thermally conductive member and a manufacturing method of the electronic device includes using the thermally conductive silicone composition.
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公开(公告)号:US20220235180A1
公开(公告)日:2022-07-28
申请号:US17718460
申请日:2022-04-12
Applicant: DOW SILICONES CORPORATION
Inventor: Frederic GUBBELS , Sandrine TEIXEIRA de CARVALHO
IPC: C08G77/08 , C08G77/16 , H01L23/29 , C08K5/5419 , C09D183/04 , C08K5/057 , C09J183/04 , C08K5/5415 , A61K47/34 , A61L15/26 , A61L24/04 , C09D183/06 , C09J183/06
Abstract: A condensation curable gel composition is disclosed. The composition comprises: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker selected from the group of a silicone, an organic polymer, a monosilane or a disilane molecule which contains at least two hydrolysable groups per molecule; and (iii) a condensation catalyst selected from the group of titanates, zirconates or tin (II). The molar ratio of hydroxyl and/or hydrolysable groups in polymer (i) to hydrolysable groups from component (ii) is between 0.5:1 and 1:1 using a monosilane cross-linker or 0.75:1 to 3:1 using disilanes. The titanates and zirconates comprise M-OR functions where M is titanium or zirconium and R is an aliphatic hydrocarbon group. The molar ratio of M-OR or tin (II) functions to the hydroxyl and/or hydrolysable groups in polymer (i) is comprised between 0.01:1 and 0.5:1.
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