ASYMMETRIC SILICONE OIL, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

WIPO Patent Application WO/2022/126383

A1

Asymmetric silicone oil, a preparation method therefor and an application thereof. The asymmetric silicone oil is used as a surface treatment agent for a filler, and is used for organosilicon thermal conductive materials, which can increase the compatibility between the filler and organosilicon. The dispersion of the filler can be improved when a high content of filler is added. The preparation method comprises the following steps: (1) in the presence of an organic solvent, contacting and reacting an organosiloxane monomer with a metal alkyl compound or a metal silicon alkoxide and a catalytic accelerator at 10-40°C for 1-24 hours; (2) adding an end-capping agent and carrying out an end-capping reaction at 10-30°C, the optimal reaction time being 0.5-5 hours, then washing with water, drying to remove water and desolventizing to then prepare a silicon-hydrogen-terminated or silicon-vinyl-terminated intermediate; and (3) carrying out a hydrosilylation reaction of the intermediate and alkoxysilane or alkoxysilicone oil to prepare the asymmetric silicone oil.

FENG LINGLONG (CN)
WANG SHENG (CN)
JIN CHAOYANG (CN)
JI XUESHUN (CN)
YU TAO (CN)
ZHANG CONGYING (CN)
YANG JIPENG (CN)
YANG HUIYA (CN)
CUI YANCHAO (CN)
WANG QINGYI (CN)

PCT/CN2020/136558

June 23, 2022

December 15, 2020

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WANHUA CHEMICAL GROUP CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)

C08K3/22; C08G77/50; C08K5/5419; C08K7/00; C08K7/18; C08K13/04; C08L83/05; C08L83/07; C08L83/14; C09K5/14

CN103987657A	2014-08-13
US20060135687A1	2006-06-22
CN109762340A	2019-05-17
JP2000327784A	2000-11-28

SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)

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