-
公开(公告)号：EP3971218A1
公开(公告)日：2022-03-23
申请号：EP20806017.8
申请日：2020-05-08
发明人： KONDO, Atsunori , SUNADA, Takashi
IPC分类号： C08C19/22 , C08K5/3445 , C08K5/47 , C08L11/00
摘要： A sulfur-modified chloroprene rubber having a functional group A represented by General Formula (A) below and positioned at a molecular terminal and a functional group B represented by General Formula (B) below and positioned at a molecular terminal, in which a mass ratio B/A of a content of the functional group B with respect to a content of the functional group A is more than 0 and 6.00 or less, and a total amount of the functional group A and the functional group B is 0.10 to 0.60% by mass.
(R a1 and R a2 each independently represent a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a carboxy group, a carboxylate group, a cyano group, an alkyl group, or an arylthio group, and R a1 and R a2 may bond with each other to form a ring.)
(R b1 and R b2 each independently represent a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, a carboxy group, a carboxylate group, a cyano group, an alkyl group, or an arylthio group, and R b1 and R b2 may bond with each other to form a ring.)-
公开(公告)号：EP4253467A1
公开(公告)日：2023-10-04
申请号：EP21897871.6
申请日：2021-11-19
发明人： SAKAI, Yuki , KONDO, Atsunori
IPC分类号： C08K5/14 , C08K5/3415 , C08K5/372 , C08L11/00 , C08K3/04
摘要： A chloroprene-based rubber composition capable of obtaining a vulcanizate having excellent compression set resistance and excellent heat resistance, a vulcanizate of the chloroprene-based rubber composition, and a vulcanized molded body of the chloroprene-based rubber composition having excellent compression set resistance and heat resistance are provided.
A chloroprene-based rubber composition comprising 100 parts by mass of a chloroprene-based rubber, 0.1 to 10 parts by mass of an organic peroxide, and 0.1 to 40 parts by mass of a compound having one or more thioether structures is provided.-
公开(公告)号：EP4015594A1
公开(公告)日：2022-06-22
申请号：EP20852539.4
申请日：2020-08-11
IPC分类号： C09J109/02 , C09J127/06 , C09J7/38
摘要： [Problem] To provide an adhesive tape that can reduce percussive sounds or friction sounds, can prevent contamination of a covered article due to contamination by dirt or dust or intrusion by water or oil, has durability against puncture or friction, and easily bends after binding a covered article.
[Solution] An adhesive tape having a substrate comprising 100 parts by mass of a polyvinyl chloride and, with respect to the 100 parts by mass of the polyvinyl chloride, 10-100 parts by mass of an elastomer and 10-100 parts by mass of a plasticizer, wherein the elastomer comprises an acrylonitrile monomer unit and at least one monomer unit selected from the group consisting of a chloroprene monomer unit, a butadiene monomer unit, and an isoprene monomer unit and the adhesive tape has an attenuation value of 2 dB or greater in an acoustic absorption test.-
公开(公告)号：EP3954732A1
公开(公告)日：2022-02-16
申请号：EP20857548.0
申请日：2020-08-12
发明人： KONDO, Atsunori , NISHINO, Wataru , ONUKI, Suguru
IPC分类号： C08K5/14 , C08K5/3415 , C08L11/00
摘要： A rubber composition containing: 100 parts by mass of a chloroprene-based rubber; 0.50 to 4.0 parts by mass of a maleimide compound; and 0.10 to 2.0 parts by mass of an organic peroxide, a vulcanizate of this rubber composition, and a vulcanized molded article of this rubber composition.
-
公开(公告)号：EP3889187A1
公开(公告)日：2021-10-06
申请号：EP20773432.8
申请日：2020-03-12
发明人： KONDO, Atsunori , SUNADA, Takashi
摘要： A sulfur-modified chloroprene rubber having a functional group A represented by General Formula (A) below and positioned at a molecular terminal and a functional group B represented by General Formula (B) below and positioned at a molecular terminal, in which a mass ratio B/A of a content of the functional group B with respect to a content of the functional group A is 0.10 to 12.00, and a total amount of the functional group A and the functional group B is 0.15 to 1.00% by mass.
(In the formula, R a represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a substituent.)
(In the formula, R b1 and R b2 each independently represent an alkyl group which may have a substituent or an aryl group which may have a substituent.)-
公开(公告)号：EP4378993A1
公开(公告)日：2024-06-05
申请号：EP22869874.2
申请日：2022-09-07
发明人： TOMIZAWA, Seiya , KONDO, Atsunori
摘要： Provided is a rubber composition capable of improving the scorch time of the unvulcanized product, and the hardness, tensile strength, and freeze resistance of the vulcanizate in a well-balanced manner.
According to the present invention, there is provided a rubber composition including a chloroprene-based rubber having a content of an unsaturated nitrile monomer unit of less than 25% by mass and an epoxy compound having a weight average molecular weight more than 100 and less than 900, wherein the rubber composition contains 0.1 to 25 parts by mass of the epoxy compound with respect to 100 parts by mass of the chloroprene-based rubber.-
公开(公告)号：EP4253466A1
公开(公告)日：2023-10-04
申请号：EP21897870.8
申请日：2021-11-19
发明人： KONDO, Atsunori
摘要： A rubber composition, by which a vulcanizate having excellent vulcanization speed, abrasion resistance and low temperature rise can be obtained, is provided.
A rubber composition comprising 100 parts by mass of a chloroprene-based rubber, 20 to 80 parts by mass of silica, 1 part by mass or more and less than 20 parts by mass of a hydrate, and 0.3 to 1.4 parts by mass of an organic peroxide, wherein the rubber composition includes 0.5 to 15 parts by mass of a silane coupling agent having a double bond in a structure of the silane coupling agent with respect to 100 parts by mass of the silica.-
公开(公告)号：EP4223787A1
公开(公告)日：2023-08-09
申请号：EP21885718.3
申请日：2021-09-10
发明人： KONDO, Atsunori , SUNADA, Takashi
摘要： A rubber foam composition containing a sulfur-modified chloroprene rubber and a chemical foaming agent, in which the sulfur-modified chloroprene rubber has a functional group A represented by specific General Formula (A) and positioned at a molecular terminal, in the sulfur-modified chloroprene rubber, a mass ratio B/A of a content of a functional group B represented by specific General Formula (B) and positioned at a molecular terminal with respect to a content of the functional group A is 12.00 or less, a total amount of the functional group A and the functional group B is 0.10 to 1.00% by mass, and a content of the chemical foaming agent is 3 to 16 parts by mass with respect to a total of 100 parts by mass of the sulfur-modified chloroprene rubber, a thiazole compound, and a dithiocarbamic acid-based compound.
-
公开(公告)号：EP4130136A1
公开(公告)日：2023-02-08
申请号：EP21792589.0
申请日：2021-02-17
发明人： KONDO, Atsunori , SUNADA, Takashi
IPC分类号： C08L15/00 , C08C19/08 , C08C19/22 , C08F8/34 , C08F36/18 , C08K3/04 , C08K5/39 , C08K5/47 , C08L9/00
摘要： A rubber composition containing: 100 parts by mass of a sulfur-modified chloroprene rubber; 25 to 55 parts by mass of carbon black having an average particle diameter of 70 nm or less; and more than 0 parts by mass and 15 parts by mass or less of a diene-based rubber other than a chloroprene rubber, in which the sulfur-modified chloroprene rubber has a functional group A represented by a specific formula (A) and positioned at a molecular terminal, and in the sulfur-modified chloroprene rubber, a mass ratio B/A of a content of a functional group B represented by a specific formula (B) and positioned at a molecular terminal with respect to a content of the functional group A is 12.00 or less, and a total amount of the functional group A and the functional group B is 0.10 to 1.00% by mass.
-
10.发明公开
公开(公告)号：EP3878878A1
公开(公告)日：2021-09-15
申请号：EP19882329.6
申请日：2019-11-06
IPC分类号： C08F236/16 , B29C35/00
摘要： A chloroprene-unsaturated nitrile copolymer having 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer, in which the chloroprene-unsaturated nitrile copolymer has a peak at 5.80 to 6.00 ppm in a 1H-NMR spectrum as measured in a deuterochloroform solvent, and a 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 0.6/100 to 1.1/100.
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.015 秒)
