公开(公告)号：US20240026054A1

公开(公告)日：2024-01-25

申请号：US18038683

申请日：2021-11-30

Applicant: MITSUI CHEMICALS, INC.

Inventor： Tatsuya ICHIKAWA ,  Katsuyoshi HARADA ,  Yusuke MIZOBUCHI ,  Yuuya GOTO

IPC: C08F255/02 ,  B32B27/08 ,  B32B27/36 ,  B32B27/30

CPC classification number: C08F255/02 ,  B32B27/08 ,  B32B27/36 ,  B32B27/308 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2250/40 ,  B32B2327/18 ,  B32B2323/046

Abstract: One embodiment of the present invention relates to a graft-modified product, an adhesive, an olefin resin composition, or a laminate, and the graft-modified product is a graft-modified product of at least one base polymer selected from polyolefins by a carbodiimide monomer having a carbodiimide group and a polymerizable double bond.

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.

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：US20170183432A1

公开(公告)日：2017-06-29

申请号：US15117015

申请日：2015-02-10

Applicant: MITSUI CHEMICALS, INC.

Inventor： Koji ENDO ,  Mayumi HIWARA ,  Sadahiko MATSUURA ,  Yoko KOSUGI ,  Yuichi YAMAMURA ,  Yusuke MIZOBUCHI

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/06 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/08 ,  C08F210/14 ,  C08F2/06

Abstract: A process capable of producing an ethylene/α-olefin copolymer having a high molecular weight even under the conditions of a high polymerization temperature is provided. The process for producing an ethylene/α-olefin copolymer includes copolymerizing ethylene and an α-olefin having 3 or more carbon atoms in the presence of an olefin polymerization catalyst including a crosslinked metallocene compound (A) represented by the following general formula [I] and a cocatalyst component (B). In the general formula [I], Y is selected from a carbon atom, etc., M is a hafnium atom or the like, R1 to R12 are each selected from a hydrogen atom, a hydrocarbon group, etc., R13 and R14 are each a substituted aryl group or the like, at least one of R13 and R14 is a substituted aryl group having one or more electron-donating substituents having a Hammett substituent constant σ of not more than −0.2, Q is selected from a halogen atom, etc., and j is an integer of 1 to 4.

公开(公告)号：US20240076425A1

公开(公告)日：2024-03-07

申请号：US18280163

申请日：2022-02-24

Applicant: MITSUI CHEMICALS, INC.

Inventor： Akihiro ASANO ,  Masakazu TANAKA ,  Toyoaki SASAKI ,  Yusuke MIZOBUCHI ,  Takuya IWATA

IPC: C08F10/14 ,  C08L23/20 ,  C09D123/20

CPC classification number: C08F10/14 ,  C08L23/20 ,  C09D123/20

Abstract: To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible application.
A 4-methyl-1-pentene polymer (A) being a copolymer of 4-methyl-1-pentene and at least one selected from linear α-olefins having 6 to 20 carbon atoms, the 4-methyl-1-pentene polymer (A) satisfying the following requirements (I) and (II):



(I) an endotherm end temperature (TmE) in a melting (endothermic) curve measured by DSC is 230° C. or lower; and
(II) an exotherm start temperature (TcS) in a crystallization (exothermic) curve measured by DSC is 210° C. or lower.

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。