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公开(公告)号:US09944732B2
公开(公告)日:2018-04-17
申请号:US15105034
申请日:2013-12-27
申请人: Hitachi, Ltd.
发明人: Yuri Kajihara , Takahito Muraki , Jun Nunoshige
IPC分类号: C08F120/14 , C07F5/02 , C08F112/08 , C09J125/06 , C09J133/12 , C08F12/08 , C08F4/52 , C08F4/04 , C09D125/06 , C09D133/12
CPC分类号: C08F120/14 , C07F5/025 , C08F4/04 , C08F4/52 , C08F12/08 , C08F112/08 , C09D125/06 , C09D133/12 , C09J125/06 , C09J133/12 , H01L2224/48247 , H01L2924/181 , H01L2924/00012
摘要: This invention is intended to synthesize a multi-branched polymer, which has an uniform molecular chain lengths and is free from branch defects, without the need for purification. This invention is also intended to synthesize a polyfunctional radical polymerization initiator represented by Formula 1: wherein n is an integer of 1 or larger; Y is a polyfunctional unsaturated compound; R1 is a hydrocarbon group; R2 is a structure in which one molecule of a radically polymerizable unsaturated hydrocarbon compound is bound to R1 and the oxygen atom; X1 of B—X1 (boron-X1) bond is an alkoxy or phenyl group; and X2 of B—X2 (boron-X2) bond is an alkoxy or phenyl group.
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公开(公告)号:US11008415B2
公开(公告)日:2021-05-18
申请号:US16322833
申请日:2017-07-07
申请人: HITACHI, LTD.
发明人: Yuri Kajihara , Takahito Muraki , Yasuhiko Tada , Jun Nunoshige , Takeshi Kondo
摘要: In a conventional self-healing material, although the resin properties after self-healing are restored to the same level as the initial refractoriness and strength of the resin, no further extension of life can be expected. A resin cured product according to the present invention includes: a first vinyl monomer having an ester bond; a second vinyl monomer having a hydroxyl group; a transesterification reaction catalyst; and a boron compound.
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