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公开(公告)号:US20230100818A1
公开(公告)日:2023-03-30
申请号:US17785821
申请日:2020-12-18
发明人: Tomoya SHIMIZU , Ayumi TOH , Tsutomu KONNO
IPC分类号: C08K5/06 , C07C35/50 , C07C43/196 , C07C43/192 , C08L27/12 , C08K5/053
摘要: The present invention provides a crosslinking agent which can improve crosslinked fluoroelastomer high-temperature vapor resistance and a crosslinked fluoroelastomer having improved high-temperature vapor resistance. The present invention provides a compound having a structure represented by the following formula (1) (in the formula, R1 to R6 are each a hydrogen atom, a substituent, or a leaving group, and two or more of R1 to R6 are leaving groups; Ra to Rc are each a hydrogen atom or a substituent; and n is an integer from 2 to 5).
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公开(公告)号:US20200148805A1
公开(公告)日:2020-05-14
申请号:US16738269
申请日:2020-01-09
申请人: NICHIAS CORPORATION
发明人: Tomoya SHIMIZU , Ayumi MAEZAWA , Yuriko SEKIMOTO
摘要: A crosslinking agent includes a compound represented by a formula (1), wherein R1, R2, and R3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R1 are identical to or different from each other, a plurality of R2 are identical to or different from each other, and a plurality of R3 are identical to or different from each other, provided that at least one of R1, R2, and R3 is a hydrogen atom, and at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group; m is an integer from 2 to 6; l is an integer from 0 to 2; and each hydrogen on the benzene ring(s) may be substituted.
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公开(公告)号:US20190270835A1
公开(公告)日:2019-09-05
申请号:US16417189
申请日:2019-05-20
申请人: NICHIAS CORPORATION
发明人: Tomoya SHIMIZU , Ayumi MAEZAWA , Yuriko SEKIMOTO
摘要: A composition includes a fluoroelastomer, a crosslinking initiator, and a crosslinking agent. The crosslinking agent comprises a compound that comprises two or more structures represented by a formula (3), wherein R1, R2, and R3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R1 are identical to or different from each other, a plurality of R2 are identical to or different from each other, a plurality of R3 are identical to or different from each other, provided that at least one of R1, R2, and R3 is a hydrogen atom, and at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group; n are independently an integer from 1 to 5; and each hydrogen on the benzene rings may be substituted.
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公开(公告)号:US20190153138A1
公开(公告)日:2019-05-23
申请号:US16255276
申请日:2019-01-23
申请人: NICHIAS CORPORATION
发明人: Tomoya SHIMIZU , Ayumi MAEZAWA , Yuriko SEKIMOTO
摘要: A crosslinking agent includes a compound represented by the following formula (1). wherein R1, R2, and R3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R1 are identical to or different from each other, a plurality of R2 are identical to or different from each other, a plurality of R3 are identical to or different from each other, provided that at least one of R1, R2, and R3 is a hydrogen atom, and at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group, m is an integer from 2 to 6, l is an integer from 0 to 2, and each hydrogen on the benzene ring(s) may be substituted.
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公开(公告)号:US20180346703A1
公开(公告)日:2018-12-06
申请号:US15779834
申请日:2016-11-29
申请人: NICHIAS CORPORATION
发明人: Kojiro OTANI , Takeshi KUBOYAMA , Tomoya SHIMIZU
IPC分类号: C08L27/20
摘要: The present invention addresses the problem of reducing the hardness of a molded article obtained by cross-linking a cross-linking elastomer. The problem addressed by the present invention is solved by cross-linking a cross-linking elastomer composition including at least a cross-linking elastomer and a fluorine oligomer (a) not including hydrogen.
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公开(公告)号:US20170226255A1
公开(公告)日:2017-08-10
申请号:US15501146
申请日:2015-07-31
申请人: NICHIAS CORPORATION
发明人: Tomoya SHIMIZU , Ayumi MAEZAWA , Yuriko SEKIMOTO
IPC分类号: C08F259/08 , C07C43/29 , C07C22/08
摘要: A crosslinking agent includes a compound represented by the following formula (1). wherein R1, R2, and R3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R1 are identical to or different from each other, a plurality of R2 are identical to or different from each other, a plurality of R3 are identical to or different from each other, provided that at least one of R1, R2, and R3 is a hydrogen atom, and at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group, m is an integer from 2 to 6, l is an integer from 0 to 2, and each hydrogen on the benzene ring(s) may be substituted.
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公开(公告)号:US20230174764A1
公开(公告)日:2023-06-08
申请号:US17925142
申请日:2021-05-11
申请人: NICHIAS CORPORATION
CPC分类号: C08L27/16 , C08L27/18 , C08L27/20 , C08K5/03 , C08K5/34924 , C08K5/14 , C08G65/007 , C09K3/1009 , C08G2190/00
摘要: A rubber composition comprising:
(a) a crosslinking reactive fluorine-containing rubber;
(b) a compound represented by the following formula (b-1): and
(c) a compound represented by the following formula (c-1):
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