公开(公告)号：US20230365733A1

公开(公告)日：2023-11-16

申请号：US18029888

申请日：2021-10-13

Applicant: MITSUI CHEMICALS, INC.

Inventor： Katsuyoshi HARADA ,  Yusuke MIZOBUCHI ,  Chihiro KOMATSU ,  Tatsuya ICHIKAWA ,  Hirokazu TANAKA ,  Yuji ISHII ,  Kazuki HIGUCHI ,  Kotaro ICHINO

IPC: C08F255/04 ,  C08L9/06 ,  B60C1/00

CPC classification number: C08F255/04 ,  C08L9/06 ,  B60C1/0016

Abstract: An object of the present invention is to provide a modifier suitable for obtaining a lubricating oil, a coating material, an adhesive, and the like with better smoothness and few bumps and to provide a rubber composition for a tire, which is suitable for preparing a tire with both excellent braking performance and excellent fuel efficiency. The present invention relates to an organosilicon compound graft copolymer (X) including a main chain derived from an ethylene/a-olefin copolymer (A) and a graft part derived from an organosilicon compound (B) having one or more unsaturated groups; and a rubber composition for a tire, including 1 to 30 parts by mass of the organosilicon compound graft copolymer (X) based on 100 parts by mass of a diene rubber including an aromatic vinyl-conjugated diene copolymerized rubber.

公开(公告)号：US20210122860A1

公开(公告)日：2021-04-29

申请号：US17133253

申请日：2020-12-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Koji ENDO ,  Mayumi HIWARA ,  Sadahiko MATSUURA ,  Yusuke MIZOBUCHI ,  Yuichi YAMAMURA ,  Yuji NOGUCHI ,  Yuji ISHII ,  Tatsuya SAKAI ,  Keisuke SHISHIDO ,  Kotaro ICHINO ,  Kiyohide INOMATA ,  Fumito TAKEUCHI ,  Kenta IDE

IPC: C08F210/18 ,  C08L23/20 ,  C09K3/10

Abstract: The purpose of the present invention is to obtain an ethylene⋅α-olefin⋅non-conjugated polyene copolymer that has a low permanent compression set at low temperatures, is flexible, and has an excellent balance of rubber elasticity at low temperatures and tensile strength at normal temperatures. This ethylene-based polymer is an ethylene⋅α-olefin⋅non-conjugated polyene copolymer that includes units derived from ethylene (A), units derived from an α-olefin (B) containing 4-20 carbon atoms, and units derived from a non-conjugated polyene (C) and satisfies (1)-(4). (1) The molar ratio of (A) to (B) is 40/60-90/10, (2) the contained amount of the units derived from (C) is 0.1-6.0 mol %, (3) ML(1+4)125° C. is 5-100, and (4) the B value is 1.20 or more.

公开(公告)号：US20180066402A1

公开(公告)日：2018-03-08

申请号：US15561507

申请日：2016-03-11

Applicant: Mitsui Chemicals, Inc.

Inventor： Tatsuya SAKAI ,  Yuji ISHII ,  Kiyohide INOMATA ,  Kotaro ICHINO

IPC: E01B9/68 ,  C08J9/10 ,  C08F210/18 ,  C08K3/06 ,  C08K3/36 ,  C08K5/548 ,  C08K9/06 ,  C08L23/16

Abstract: A railroad rail track pad composition including a particular ethylene•α-olefin•non-conjugated polyene random copolymer (A), clay (B), and a sulfur atom-containing silane coupling agent (C) is used in order to lower the viscosity of a rubber composition that is a raw material for molding while suppressing lowering of the rubber elasticity of a crosslinked and molded product to be obtained. In addition, a molded product obtained by crosslinking the composition, particularly a molded product obtained by crosslinking and foam-molding the composition, is provided with rubber elasticity that is suitable as a railroad rail track pad.

公开(公告)号：US20170298203A1

公开(公告)日：2017-10-19

申请号：US15639729

申请日：2017-06-30

Applicant: MITSUI CHEMICALS, INC.

Inventor： Ryo NAKATSUJI ,  Hiroki EBATA ,  Yuji ISHII ,  Kiyohide INOMATA

IPC: C08J9/14 ,  C08J9/12 ,  C08L23/16 ,  C08L21/00

CPC classification number: C08J9/142 ,  C08J9/125 ,  C08J2307/00 ,  C08J2321/00 ,  C08J2323/16 ,  C08L21/00 ,  C08L23/16 ,  C08L2203/14 ,  C08L2205/02 ,  C08L2312/00

Abstract: [Object] To provide an excellent foaming agent which does not have problems in handling and operation (example: risk of explosion or fire) and inhibition of cross-linking resulting from a foaming agent and problems, such as, mold pollution and environmental pollution, caused by a foaming agent residue, which has excellent uniform dispersibility in a subject of foaming, and which can be used as an alternative to the chemical decomposition type foaming agent.[Solution] A foaming agent formed from at least (A) a high molecular weight compound having a saturated water absorption of 10 to 1,000 g/g in ion-exchanged water (25° C.) and (B) water, wherein a storage modulus (G′) of the agent, determined on the basis of a viscoelasticity measurement at a temperature of 20° C., is 8.0×101 to 1.0×106 Pa at a frequency of 5 rad/s.

公开(公告)号：US20170148427A1

公开(公告)日：2017-05-25

申请号：US15127329

申请日：2015-03-18

Applicant: MITSUI CHEMICALS, INC.

Inventor： Fumito TAKEUCHI ,  Yuji ISHII ,  Mitsunao ARINO ,  Ryo NAKATSUJI ,  Kiyohide INOMATA ,  Tatsuya SAKAI

IPC: G10K11/162 ,  C08L23/16

CPC classification number: G10K11/162 ,  C08F4/65908 ,  C08F4/65912 ,  C08F210/14 ,  C08F210/18 ,  C08F2420/02 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K3/26 ,  C08K5/09 ,  C08K5/36 ,  C08K5/39 ,  C08K5/40 ,  C08K5/42 ,  C08K5/47 ,  C08L9/02 ,  C08L9/06 ,  C08L23/04 ,  C08L23/16 ,  C08L23/20 ,  C08L23/22 ,  C08L53/00 ,  C08L53/025 ,  C08L91/00 ,  C08F210/06 ,  C08F4/6592 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/17 ,  C08F4/65927

Abstract: The present invention provides a sound insulator which includes: a flexible material (A) having a peak of loss tangent (tan δ), which is determined by dynamic viscoelasticity measurement, in a temperature range of −60° C. to lower than 0° C.; and a resin (B) having a peak of loss tangent (tan δ), which is determined by dynamic viscoelasticity measurement, in a temperature range of 0° C. to 60° C., the sound insulator including the resin (B) at a ratio of 1 to 50 parts by mass with respect to 100 parts by mass of the flexible material (A). The sound insulator of the present invention is a material which realizes excellent sound insulation properties without relying on a complex shape and an increase in weight.

公开(公告)号：US20170283556A1

公开(公告)日：2017-10-05

申请号：US15101808

申请日：2014-12-05

Applicant: Mitsui Chemicals, Inc.

Inventor： Hiroki EBATA ,  Tatsuya ENOMOTO ,  Isao WASHIO ,  Fumio KAGEYAMA ,  Atsushi TAKEISHI ,  Yuji ISHII ,  Akinori AMANO

IPC: C08G69/26 ,  C07C63/24 ,  C07C63/26

CPC classification number: C08G69/26 ,  C07C63/24 ,  C07C63/26 ,  C08J3/246 ,  C08J2323/08 ,  C08J2377/00 ,  C08J2423/08 ,  C08J2477/00 ,  C08L77/06 ,  C08L2312/04 ,  F16L11/04 ,  G01N25/20 ,  C08L23/16 ,  C08L61/06 ,  C08L23/26

Abstract: The present invention relates to a polyamide-based thermoplastic elastomer composition [Y] in which a rubber composition [X] and a phenol resin-based crosslinking agent [IV] are dynamically crosslinked, the rubber composition [X] comprising a polyamide [I] including 30 to 100% by mole of a terephthalic acid structural unit and having a melting point of 220 to 290° C.; an ethylene-α-olefin-unconjugated polyene copolymer rubber [II] including structural units of ethylene, an α-olefin having 3 to 20 carbon atoms and an unconjugated polyene, respectively; and an olefin-based polymer [III] including 0.3 to 5.0% by mass of a functional group structural unit, (the total of [I] to [IV]: 100% by mass).

公开(公告)号：US20160347894A1

公开(公告)日：2016-12-01

申请号：US15116691

申请日：2015-02-10

Applicant: MITSUI CHEMICALS, INC.

Inventor： Koji ENDO ,  Mayumi HIWARA ,  Sadahiko MATSUURA ,  Yusuke MIZOBUCHI ,  Yuichi YAMAMURA ,  Yuji NOGUCHI ,  Yuji ISHII ,  Tatsuya SAKAI ,  Keisuke SHISHIDO ,  Kotaro ICHINO ,  Kiyohide INOMATA ,  Fumito TAKEUCHI ,  Kenta IDE

IPC: C08F210/18 ,  C08L23/20 ,  C09K3/10

CPC classification number: C08F210/18 ,  C08F4/65908 ,  C08F4/65912 ,  C08L23/20 ,  C09K3/1006 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/17 ,  C08F210/08 ,  C08F4/65927

Abstract: The purpose of the present invention is to obtain an ethylene•α-olefin•non-conjugated polyene copolymer that has a low permanent compression set at low temperatures, is flexible, and has an excellent balance of rubber elasticity at low temperatures and tensile strength at normal temperatures. This ethylene-based polymer is an ethylene•α-olefin•non-conjugated polyene copolymer that includes units derived from ethylene (A), units derived from an α-olefin (B) containing 4-20 carbon atoms, and units derived from a non-conjugated polyene (C) and satisfies (1)-(4). (1) The molar ratio of (A) to (B) is 40/60-90/10, (2) the contained amount of the units derived from (C) is 0.1-6.0 mol %, (3) ML(1+4)125° C. is 5-100, and (4) the B value is 1.20 or more.

Abstract translation: 本发明的目的是获得在低温下具有低永久压缩永久变形的乙烯·α-烯烃·非共轭多烯共聚物，是柔性的，并且在低温下具有优异的橡胶弹性平衡和拉伸强度 正常温度 该乙烯类聚合物是包含衍生自乙烯（A）的单元，源自含有4-20个碳原子的α-烯烃（B）的单元的单元的乙烯·α-烯烃·非共轭多烯共聚物， 非共轭多烯（C）并满足（1） - （4）。 （1）（A）与（B）的摩尔比为40/60〜90/10，（2）来自（C）的单元的含量为0.1〜6.0摩尔％，（3）ML +4）125℃为5-100，（4）B值为1.20以上。

公开(公告)号：US20210122861A1

公开(公告)日：2021-04-29

申请号：US17133280

申请日：2020-12-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Koji ENDO ,  Mayumi HIWARA ,  Sadahiko MATSUURA ,  Yusuke MIZOBUCHI ,  Yuichi YAMAMURA ,  Yuji NOGUCHI ,  Yuji ISHII ,  Tatsuya SAKAI ,  Keisuke SHISHIDO ,  Kotaro ICHINO ,  Kiyohide INOMATA ,  Fumito TAKEUCHI ,  Kenta IDE

IPC: C08F210/18 ,  C08L23/20 ,  C09K3/10

Abstract: The purpose of the present invention is to obtain an ethylene⋅α-olefin⋅non-conjugated polyene copolymer that has a low permanent compression set at low temperatures, is flexible, and has an excellent balance of rubber elasticity at low temperatures and tensile strength at normal temperatures. This ethylene-based polymer is an ethylene⋅α-olefin⋅non-conjugated polyene copolymer that includes units derived from ethylene (A), units derived from an α-olefin (B) containing 4-20 carbon atoms, and units derived from a non-conjugated polyene (C) and satisfies (1)-(4). (1) The molar ratio of (A) to (B) is 40/60-90/10, (2) the contained amount of the units derived from (C) is 0.1-6.0 mol %, (3) ML(1+4) 125° C. is 5-100, and (4) the B value is 1.20 or more.