公开(公告)号：US10329366B2

公开(公告)日：2019-06-25

申请号：US15993745

申请日：2018-05-31

申请人： MITSUI CHEMICALS, INC.

发明人： Katsuyoshi Harada ,  Koji Endo ,  Tomoaki Mizukawa ,  Sadahiko Matsuura

IPC分类号： C10M107/04 ,  C10M107/06 ,  C08F4/6592 ,  C08F210/16 ,  C10M177/00 ,  C10M107/02 ,  C10M107/10 ,  C08F4/659

摘要： 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：US11485815B2

公开(公告)日：2022-11-01

申请号：US17045912

申请日：2019-04-09

申请人： MITSUI CHEMICALS, INC.

发明人： Masakazu Tanaka ,  Toyoaki Sasaki ,  Tomoaki Matsugi ,  Sadahiko Matsuura ,  Naoto Matsukawa ,  Masatoshi Chinaka

IPC分类号： C08F297/08

摘要： 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：US10919997B2

公开(公告)日：2021-02-16

申请号：US15116691

申请日：2015-02-10

申请人： MITSUI CHEMICALS, INC.

发明人： 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分类号： C08F210/18 ,  C08L23/20 ,  C09K3/10 ,  C08F4/659

摘要： 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：US10040884B2

公开(公告)日：2018-08-07

申请号：US15129325

申请日：2015-03-26

申请人： MITSUI CHEMICALS, INC.

发明人： Katsuyoshi Harada ,  Koji Endo ,  Tomoaki Mizukawa ,  Sadahiko Matsuura

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

CPC分类号： 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

摘要： 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：US09969827B2

公开(公告)日：2018-05-15

申请号：US15117015

申请日：2015-02-10

申请人： MITSUI CHEMICALS, INC.

发明人： Koji Endo ,  Mayumi Hiwara ,  Sadahiko Matsuura ,  Yoko Kosugi ,  Yuichi Yamamura ,  Yusuke Mizobuchi

IPC分类号： C07F17/00 ,  C08F4/6592 ,  C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08F4/659

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

摘要： 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：US11760819B2

公开(公告)日：2023-09-19

申请号：US17133280

申请日：2020-12-23

申请人： MITSUI CHEMICALS, INC.

发明人： 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分类号： C08F4/6592 ,  C08F210/18 ,  C08L23/20 ,  C09K3/10 ,  C08F4/659 ,  C08F4/64

CPC分类号： C08F210/18 ,  C08L23/20 ,  C09K3/1006 ,  C08F4/64 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F2500/17 ,  C08F210/18 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/17 ,  C08F210/18 ,  C08F210/08 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/17 ,  C08F210/18 ,  C08F4/65927

摘要： 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：US11613595B2

公开(公告)日：2023-03-28

申请号：US17133253

申请日：2020-12-23

申请人： MITSUI CHEMICALS, INC.

发明人： 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分类号： C08F210/18 ,  C08L23/20 ,  C09K3/10 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/64

摘要： 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：US11248069B2

公开(公告)日：2022-02-15

申请号：US16078594

申请日：2017-02-21

申请人： MITSUI CHEMICALS, INC.

发明人： Masakazu Tanaka ,  Masahiko Okamoto ,  Makoto Nakano ,  Sadahiko Matsuura

IPC分类号： C08F10/14 ,  C08J5/18 ,  C08L23/20 ,  B29C48/00 ,  B29C48/03 ,  B29K23/00

摘要： 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.