公开(公告)号：US20210032397A1

公开(公告)日：2021-02-04

申请号：US17045912

申请日：2019-04-09

Applicant: MITSUI CHEMICALS, INC.

Inventor： Masakazu TANAKA ,  Toyoaki SASAKI ,  Tomoaki MATSUGI ,  Sadahiko MATSUURA ,  Naoto MATSUKAWA ,  Masatoshi CHINAKA

IPC: C08F297/08

Abstract: A 4-methyl-1-pentene polymer particle (X) which satisfies the following requirements (X-a), (X-b) and (X-c): (X-a) being composed of a 4-methyl-1-pentene polymer which has a content of a constitutional unit derived from 4-methyl-1-pentene being 30.0 to 99.7% by mol, and a content of a constitutional unit derived from at least one olefin selected from ethylene and an α-olefin having 3 to 20 carbon atoms (except for 4-methyl-1-pentene) being 0.3 to 70.0% by mol; (X-b) having, when measured in a cross fractionation chromatograph apparatus (CFC) using an infrared spectrophotometer as a detector part, at least one peak A of an amount of a component eluted present in the range of 100 to 140° C., and at least one peak B of an amount of a component eluted present at lower than 100° C.; and (X-c) having a meso diad fraction (m) measured by 13C-NMR falling within the range of 95.0 to 100%.

公开(公告)号：US20170114166A1

公开(公告)日：2017-04-27

申请号：US15129325

申请日：2015-03-26

Applicant: MITSUI CHEMICALS, INC.

Inventor： Katsuyoshi HARADA ,  Koji ENDO ,  Tomoaki MIZUKAWA ,  Sadahiko MATSUURA

IPC: C08F210/16 ,  C10M107/06

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C10M107/02 ,  C10M107/06 ,  C10M107/10 ,  C10M177/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/022 ,  C10M2205/0245 ,  C10M2205/026 ,  C10M2205/0285 ,  C10M2207/281 ,  C10M2209/084 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/68 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/044 ,  C10N2240/08 ,  C10N2240/10 ,  C10N2260/02 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/03 ,  C10M2205/024

Abstract: The invention has an object of providing ethylene/α-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/α-olefin copolymers of the invention are obtained by copolymerizing ethylene and an α-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.

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.

公开(公告)号：US20190048109A1

公开(公告)日：2019-02-14

申请号：US16078594

申请日：2017-02-21

Applicant: MITSUI CHEMICALS, INC.

Inventor： Masakazu TANAKA ,  Masahiko OKAMOTO ,  Makoto NAKANO ,  Sadahiko MATSUURA

IPC: C08F10/14 ,  C08J5/18

Abstract: A 4-methyl-1-pentene polymer having: a unit derived from 4-methyl-1-pentene of 90 to 100% by mol; a unit selected from ethylene and an α-olefin, other than 4-methyl-1-pentene, having 3 to 20 carbon atoms of 0 to 10% by mol; and the polymer satisfying the following requirements: (a) a meso diad fraction measured by 13C-NMR within the range of 98 to 100%; (b) a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw measured by GPC within the range of 2.5 to 20; (c) a ratio of weight-average molecular weight Mw to number-average molecular weight Mn measured by GPC within the range of 3.6 to 30; (d) a melt flow rate measured under conditions of 260° C. and a 5 kg load (ASTM D1238) within the range of 0.1 to 500 g/10 min; and (e) an amount of a decane-soluble portion at 23° C. is 5.0% by mass or less.

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：US20180273662A1

公开(公告)日：2018-09-27

申请号：US15993745

申请日：2018-05-31

Applicant: MITSUI CHEMICALS, INC.

Inventor： Katsuyoshi HARADA ,  Koji ENDO ,  Tomoaki MIZUKAWA ,  Sadahiko MATSUURA

IPC: C08F210/16 ,  C08F4/6592 ,  C10M107/06 ,  C08F4/659

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C10M107/02 ,  C10M107/06 ,  C10M107/10 ,  C10M177/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/022 ,  C10M2205/0245 ,  C10M2205/026 ,  C10M2205/0285 ,  C10M2207/281 ,  C10M2209/084 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/68 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/044 ,  C10N2240/08 ,  C10N2240/10 ,  C10N2260/02 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/03 ,  C10M2205/024

Abstract: The invention has an object of providing ethylene/α-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/α-olefin copolymers of the invention are obtained by copolymerizing ethylene and an α-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.

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.