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公开(公告)号：EP3878906A1
公开(公告)日：2021-09-15
申请号：EP19880999.8
申请日：2019-11-06
摘要： A chloroprene-unsaturated nitrile copolymer composition containing 100 parts by mass of a chloroprene-unsaturated nitrile copolymer having 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer, and 0.05 to 2.0 parts by mass of a xanthogen compound.
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公开(公告)号：EP3656795A1
公开(公告)日：2020-05-27
申请号：EP18834681.1
申请日：2018-07-20
发明人： ISHIGAKI Yuhei , HAGIWARA Shogo , YAMAGISHI Uichiro , ONUKI Suguru , FUJIMOTO Kosuke , NISHINO Wataru
IPC分类号： C08F36/18 , C08F2/24 , C08F2/38 , C08L11/00 , C08L11/02 , C09J111/00 , C09J111/02
摘要： Provided is a chloroprene-based polymer having an industrially applicable sufficient molecular weight and capable of obtaining a vulcanized rubber excellent in durability and fatigue endurance and an adhesive excellent in layer separation resistance. A chloroprene-based polymer having a number average molecular weight Mn of 150000 to 300000 and comprising a functional group of a structure represented by the general formula (1) or (2) below:
(wherein in the general formula (1), R1 shows hydrogen, chlorine, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclyl group.)-
公开(公告)号：EP3636675A1
公开(公告)日：2020-04-15
申请号：EP18797563.6
申请日：2018-05-11
发明人： NISHINO Wataru , ONUKI Suguru , FUJIMOTO Kosuke , ISHIGAKI Yuhei , HAGIWARA Shogo , YAMAGISHI Uichiro
IPC分类号： C08F2/00 , A41D19/00 , C08F2/38 , C08F236/12 , C08L11/00 , C09J111/00 , C09K3/10 , F16J15/10
摘要： To provide a statistical copolymer containing a chloroprene monomer unit and an unsaturated nitrile monomer unit which has a satisfactory oil resistance. A method for producing a statistical copolymer containing a chloroprene monomer unit and an unsaturated nitrile monomer unit comprising a step for conducting continuous addition or 10 cycles or more of intermittent portionwise addition of the chloroprene monomer after initiation of a polymerization reaction is provided. A rubber composition using a statistical copolymer according to the invention or a vulcanized molded article containing said rubber composition is excellent in terms of oil resistance, mechanical strength, compression set at a low temperature and flex fatigue resistance.
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4.发明公开
公开(公告)号：EP4317717A1
公开(公告)日：2024-02-07
申请号：EP22784397.6
申请日：2022-03-07
发明人： NISHINO Wataru , ONUKI Suguru , ANDO Ryotaro
IPC分类号： F16C13/00 , C08F220/42 , C08F236/18 , C08L11/02
摘要： A chloroprene polymer having a structural unit derived from chloroprene and a structural unit derived from an unsaturated nitrile, in which the chloroprene polymer has a peak top at 5.80 to 6.00 ppm in a 1H-NMR spectrum as measured in a deuterochloroform solvent, in the 1H-NMR spectrum, a peak area ratio A/B of a peak area A at 5.80 to 6.00 ppm and a peak area B at 4.05 to 6.20 ppm is more than 1.1/100 and 2.3/100 or less, and a content of the structural unit derived from an unsaturated nitrile is more than 0% by mass and 23% by mass or less.
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5.发明公开
公开(公告)号：EP4317716A1
公开(公告)日：2024-02-07
申请号：EP22784396.8
申请日：2022-03-07
发明人： NISHINO Wataru , ONUKI Suguru , ANDO Ryotaro
IPC分类号： F16C13/00 , C08F220/42 , C08F236/18 , C08L11/02
摘要： A chloroprene polymer having a structural unit derived from chloroprene and a structural unit derived from an unsaturated nitrile, in which the chloroprene polymer has peak tops at 5.80 to 6.00 ppm and 5.10 to 5.30 ppm in a 1H-NMR spectrum as measured in a deuterochloroform solvent, in the 1H-NMR spectrum, a peak area ratio A/B of a peak area A at 5.80 to 6.00 ppm and a peak area B at 4.05 to 6.20 ppm is 0.9/100 to 1.1/100, and the peak area A, the peak area B, and a peak area C at 5.10 to 5.30 ppm satisfy formula "(C - 2A)B ≤ 2.0/100", and a content of the structural unit derived from an unsaturated nitrile is more than 0% by mass and 23% by mass or less.
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公开(公告)号：EP3783040A1
公开(公告)日：2021-02-24
申请号：EP19853646.8
申请日：2019-07-26
发明人： ISHIGAKI Yuhei , KOBAYASHI Naoki , AIZAWA Takashi , ONUKI Suguru , FUJIMOTO Kohsuke , NISHINO Wataru
IPC分类号： C08F236/18 , C08F2/38 , C08F220/44 , C08L11/00 , C08L21/00
摘要： To provide a copolymer of chloroprene and an unsaturated nitrile compound, the copolymer being industrially applicable and having a sufficient Mooney viscosity. Specifically, provided is a copolymer of a chloroprene monomer and an unsaturated nitrile compound, with a Mooney viscosity ML(1+4) 100°C of 20 to 80 and having a functional group of a structure represented by the following general formula (1) or (2):
(wherein in the general formula (1), R 1 shows hydrogen, chlorine, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclyl group.)
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