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公开(公告)号：US20200055975A1
公开(公告)日：2020-02-20
申请号：US16342933
申请日：2017-10-25
Applicant: ZEON CORPORATION
Inventor： Yasuo TSUNOGAE , Shingo OKUNO , Hiroyuki NITADORI
Abstract: A crosslinkable composition containing: a liquid monocyclic olefin ring-opened polymer (A) having a reactive group at a polymer chain end thereof and a weight-average molecular weight (Mw) of 1,000 to 50,000; and a crosslinkable compound (B) having, in the molecule, two or more functional groups reactive with the reactive group at the polymer chain end of the monocyclic olefin ring-opened polymer (A).
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公开(公告)号：US20210269585A1
公开(公告)日：2021-09-02
申请号：US17260116
申请日：2019-07-04
Applicant: ZEON CORPORATION
Inventor： Yasuo TSUNOGAE , Shingo OKUNO
Abstract: A ring-opened copolymer composition comprising a ring-opened copolymer containing structural unit derived from a norbornene compound represented by general formula (1) below and structural unit derived from a monocyclic olefin, wherein a content of a norbornene compound represented by general formula (1) is 1 ppm by weight or more and 1000 ppm by weight or less based on the ring-opened copolymer is provided. wherein R1 to R4 are each a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, a silicon atom, an oxygen atom or a nitrogen atom, and R2 and R3 may be bonded to each other to form a ring, and “m” is 0 or 1.
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公开(公告)号：US20210230357A1
公开(公告)日：2021-07-29
申请号：US17050239
申请日：2019-04-11
Applicant: ZEON CORPORATION
Inventor： Yasuo TSUNOGAE , Shingo OKUNO
IPC: C08G61/08
Abstract: A ring-opened copolymer including structural units derived from a norbornene compound having a specific structure and structural units derived from a monocyclic olefin, wherein the proportion of the structural units derived from a norbornene compound is 25 to 90 wt % and the proportion of the structural units derived from a monocyclic olefin is 10 to 75 wt % relative to the total repeating structural units in the ring-opened copolymer, the weight average molecular weight of the ring-opened copolymer is 100,000 to 1,000,000, and the cis/trans ratio of the ring-opened copolymer is 0/100 to 50/50.
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公开(公告)号：US20190256692A1
公开(公告)日：2019-08-22
申请号：US16344320
申请日：2017-10-25
Applicant: ZEON CORPORATION
Inventor： Yasuo TSUNOGAE , Shingo OKUNO , Hiroyuki NITADORI
Abstract: A rubber composition containing: a solid rubber (A) having a weight-average molecular weight (Mw) of 100,000 or more; and a liquid monocyclic olefin ring-opened polymer (B) having a weight-average molecular weight (Mw) of 1,000 to 50,000, wherein a proportion of the liquid monocyclic olefin ring-opened polymer (B) is 1 to 100 parts by weight per 100 parts by weight of the solid rubber (A).
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公开(公告)号：US20190330415A1
公开(公告)日：2019-10-31
申请号：US16323372
申请日：2017-08-16
Applicant: ZEON CORPORATION
Inventor： Shingo OKUNO , Yasuo TSUNOGAE
Abstract: A crosslinked rubber is a member for use in an environment at −10° C. or less produced by crosslinking a polymer composition containing 20 to 200 parts by weight of carbon black with respect to 100 parts by weight of a rubber component containing a monocyclic olefin ring-opening polymer having a proportion of cis bond of a structural unit derived from a monocyclic olefin of 45 to 95%.
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Patent Agency Ranking
公开(公告)号：US20180244837A1
公开(公告)日：2018-08-30
申请号：US15758182
申请日：2016-09-21
Applicant: ZEON CORPORATION
Inventor： Hiroyuki NITADORI , Shingo OKUNO , Naoaki KURAMOTO , Takeshi SUGIMURA
CPC classification number: C08G61/06 , B60C1/00 , C08G61/08 , C08G2261/3321 , C08G2261/3325 , C08G2261/418 , C08G2261/60 , C08G2261/62 , C08G2261/76 , C08K3/36 , C08L65/00
Abstract: Provided is a cyclopentene ring-opening copolymer comprising a structural unit derived from cyclopentene and a structural unit derived from a norbornene compound with three or more rings, wherein the content of the structural unit derived from a norbornene compound with three or more rings is 40 to 80 wt % in relation to the whole of the repeating structural units in the cyclopentene ring-opening copolymer.
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7.发明申请公开(公告)号：US20170253695A1
公开(公告)日：2017-09-07
申请号：US15505985
申请日：2015-08-26
Applicant: ZEON CORPORATION
Inventor： Yasuo TSUNOGAE , Shingo OKUNO , Naoaki KURAMOTO
CPC classification number: C08C1/15 , B60C1/00 , C08F6/22 , C08F8/00 , C08F132/04 , C08G61/08 , C08G2261/135 , C08G2261/1644 , C08G2261/3321 , C08G2261/418 , C08G2261/726 , C08G2261/76 , C08K3/04 , C08K3/36 , C08K5/103 , C08L65/00 , C08L71/02
Abstract: A cycloolefin rubber having a weight average molecular weight of 100,000 to 800,000, having a silyl group at the polymer chain end, and containing a fatty acid ester of a polyvalent alcohol. A cycloolefin rubber excellent in processability at the time of blending and kneading and excellent in low heat buildup property can be provided.
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公开(公告)号：US20170233560A1
公开(公告)日：2017-08-17
申请号：US15519695
申请日：2015-10-16
Applicant: ZEON CORPORATION
Inventor： Naoaki KURAMOTO , Takeshi SUGIMURA , Shingo OKUNO , Hiroyuki NITADORI
CPC classification number: C08L9/06 , B60C1/00 , C08C19/25 , C08C19/44 , C08G61/08 , C08G2261/418 , C08G2261/60 , C08G2261/726 , C08K3/36 , C08K5/54 , C08L15/00 , C08L65/00 , C08K5/5419 , C08K3/04
Abstract: Provided is a rubber composition for a tire containing a rubber component including 15 to 55 wt % of an end modified group-containing cycloolefin ring-opening polymer having a glass transition temperature of −120 to −90° C. and 45 to 85 wt % of an end modified group-containing solution polymerized conjugated diene polymer having a glass transition temperature of −60 to −10° C. and having an aromatic vinyl monomer unit content ratio of more than 30 wt % and 50 wt % or less, a silica, and a silane coupling agent including a monosulfide group and/or a thiol group, wherein the content of the silica with respect to 100 parts by weight of the rubber component is 30 to 200 parts by weight, and the content of the silane coupling agent including a monosulfide group and/or a thiol group with respect to 100 parts by weight of the silica is 0.3 to 20 parts by weight.
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公开(公告)号：US20200231744A1
公开(公告)日：2020-07-23
申请号：US16487011
申请日：2018-03-16
Applicant: ZEON CORPORATION
Inventor： Hiroyuki NITADORI , Shingo OKUNO , Yasuo TSUNOGAE
Abstract: A cyclopentene ring-opening copolymer having a branch structure contains a structure in which at least four cyclopentene ring-opening polymer chains are linked via a branch-structural unit. At least part of the cyclopentene ring-opening polymer chains is terminally modified.
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公开(公告)号：US20160096910A1
公开(公告)日：2016-04-07
申请号：US14970183
申请日：2015-12-15
Applicant: KYOTO UNIVERSITY , ZEON CORPORATION
Inventor： Fumiaki BANDO , Shingo OKUNO , Shigetaka HAYANO , Mitsuo SAWAMOTO , Makoto OUCHI
IPC: C08F136/08 , C07F15/00
CPC classification number: C08F136/08 , C07F9/5022 , C07F15/0046 , C07F17/02 , C08C19/12 , C08F4/72 , C08F4/80 , C08F36/04 , C08F236/04 , C08F236/08 , C08F236/10 , C08F236/12 , C08F236/16 , C08F220/44 , C08F12/08 , C08F4/6192
Abstract: Conjugated diene polymer comprising at least a conjugated diene monomer unit, the conjugated diene polymer has a number-average molecular weight (Mn) in terms of polystyrene of 1,000 to 1,000,000, a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to the number-average molecular weight (Mn) of lower than 2.0 and the polymer bears a halogen atom at a terminal of the polymer chain. Method for producing the conjugated diene polymer comprises subjecting a monomer containing at least a conjugated diene to living radical polymerization using a polymerization initiator comprising a halogenocyclopentadienyl triorganophosphine η2-olefin ruthenium complex represented by formula (6) (and an organic halide.
Abstract translation: 包含至少共轭二烯单体单元的共轭二烯聚合物，共轭二烯聚合物的聚苯乙烯换算的数均分子量（Mn）为1,000〜1,000,000，重均分子量（Mw / Mn） Mw）低于2.0的数均分子量（Mn），并且聚合物在聚合物链的末端具有卤素原子。 用于生产共轭二烯聚合物的方法包括使用包含式（6）表示的卤代环戊二烯基三有机膦和2-烯烃钌络合物的聚合引发剂（和有机卤化物）使含有至少共轭二烯的单体进行活性自由基聚合。
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