公开(公告)号：US20240199767A1

公开(公告)日：2024-06-20

申请号：US18550586

申请日：2022-03-14

申请人： ENEOS Materials Corporation

发明人： Tatsumoto NAKAHAMA ,  Toshimitsu KIKUCHI ,  Hirofumi SENGA ,  Takuya SANO ,  Takato FUKUMOTO ,  Yuto SAKAGAMI ,  Toshiyuki HAYAKAWA

IPC分类号： C08F8/30 ,  B60C1/00 ,  C08F8/04 ,  C08F8/42 ,  C08F36/06

CPC分类号： C08F8/30 ,  B60C1/0016 ,  B60C1/0025 ,  C08F8/04 ,  C08F8/42 ,  C08F36/06

摘要： A conjugated diene-based polymer, having a value α of 0.65 to 0.97 as defined by the following mathematical expression (i):


α=(p+(0.5×r))/(p+q+(0.5×r)+s)   (i)

where p, q, r, and s represent compositional molar ratios of structural units in the conjugated diene-based polymer represented by the following formulas (1) to (4), respectively:




The conjugated diene-based polymer contains, in an amount of 25 to 75 mass %, a polymer (A1) including a multi-branched structure having 4 or more molecular chains, and the polymer (A1) has a functional group containing at least one element selected from the group consisting of nitrogen, oxygen, and sulfur at one or both of a terminal and a branching point of the polymer (A1).

公开(公告)号：US20220251351A1

公开(公告)日：2022-08-11

申请号：US17438080

申请日：2020-03-30

申请人： ENEOS MATERIALS CORPORATION

发明人： Takumi ADACHI ,  Yuto SAKAGAMI ,  Hirofumi SENGA ,  Takuya SANO ,  Takato FUKUMOTO ,  Michitaka KAIZU ,  Toshimitsu KIKUCHI ,  Toshiyuki HAYAKAWA

IPC分类号： C08L15/00 ,  C08L9/06 ,  C08C19/02 ,  C08C19/22 ,  C08C19/25 ,  C08K3/06 ,  C08K3/36 ,  C08J3/24 ,  B60C1/00

摘要： A cross-linked product obtained through crosslinking a polymer composition that contains a rubber component, an inorganic filler and a cross-linking agent and that satisfies conditions (a) to (c): (a) the rubber component contains a conjugated diene-based polymer (A) having, when composition ratios (molar ratios) in the conjugated diene-based polymer (A) of structural units represented by formulae (1) to (4) are p, q, r, and s, respectively, a value α represented by formula (i) of 0.80 or more and 0.97 or less; (b) a blending ratio of the conjugated diene-based polymer (A) is 10% by mass or more relative to a total amount of the rubber component; and (c) a blending ratio of the inorganic filler is 40 to 150 parts by mass relative to 100 parts by mass of the rubber component, wherein the Tg of the cross-linked product is −25° C. or lower.

公开(公告)号：US20240002643A1

公开(公告)日：2024-01-04

申请号：US18254808

申请日：2021-11-29

申请人： ENEOS Materials Corporation

发明人： Hirofumi SENGA ,  Toshimitsu KIKUCHI ,  Yuto SAKAGAMI ,  Takuya SANO ,  Takato FUKUMOTO ,  Toshiyuki HAYAKAWA

IPC分类号： C08L9/06 ,  B60C1/00 ,  B60C11/00 ,  B60C13/00

CPC分类号： C08L9/06 ,  B60C1/0016 ,  B60C1/0025 ,  B60C11/0008 ,  B60C13/00 ,  C08L2205/03 ,  C08L2205/16 ,  B60C2011/0025 ,  B60C2013/006

摘要： A polymer composition includes a conjugated diene-based polymer (A) and a liquid polymer (B). The conjugated diene-based polymer (A) includes a polymer (A1) satisfying expression (i) when a composition ratio (molar ratio) of a structural unit represented by formula (1), a structural unit represented by formula (2), a structural unit represented by formula (3) and a structural unit represented by formula (4) in the polymer is p, q, r and s, respectively; a glass transition temperature of the polymer (A1) is −40° C. or less; and the liquid polymer (B) is polybutadiene, polyisoprene, polyisobutylene, polybutene, or the like.


0.75(p+(0.5×r))/(p+q+(0.5×r)+s)≤0.97  Expression (i)

公开(公告)号：US20240042800A1

公开(公告)日：2024-02-08

申请号：US18256126

申请日：2021-12-01

申请人： ENEOS Materials Corporation

发明人： Toshimitsu KIKUCHI ,  Hirofumi SENGA ,  Yuto SAKAGAMI ,  Takuya SANO ,  Takato FUKUMOTO ,  Toshiyuki HAYAKAWA

IPC分类号： B60C1/00 ,  C08K3/04 ,  C08K3/36 ,  C08K3/14 ,  C08L9/06

CPC分类号： B60C1/0016 ,  B60C1/0025 ,  C08K3/04 ,  C08K3/36 ,  C08K3/14 ,  C08L9/06 ,  C08K2003/2227

摘要： A polymer composition includes a conjugated diene-based polymer (A) and a filler having a Mohs hardness of 5 or more (B), where the conjugated diene-based polymer (A) contains a polymer (A1) satisfying expression (i) when a composition ratio (molar ratio) of a structural unit represented by formula (1), a structural unit represented by formula (2), a structural unit represented by formula (3) and a structural unit represented by formula (4) in the polymer is p, q, r and s, respectively.


0.75≤(p+(0.5×r))/(p+q+(0.5×r)+s)≤0.95  Expression (i)

公开(公告)号：US20220290017A1

公开(公告)日：2022-09-15

申请号：US17688944

申请日：2022-03-08

申请人： ENEOS MATERIALS CORPORATION

发明人： Toshimitsu KIKUCHI ,  Hirofumi SENGA ,  Tatsumoto NAKAHAMA ,  Takuya SANO ,  Takato FUKUMOTO ,  Yuto SAKAGAMI ,  Toshiyuki HAYAKAWA

IPC分类号： C09J153/02 ,  C09J7/30 ,  C08L53/02

摘要： Provided is a block polymer including two or more polymer block As each having a value β of 0.20 or less and a functional group F containing at least one element selected from a group consisting of nitrogen, silicon, oxygen, and sulfur in a part or all of terminals of the two or more polymer block As, in which the block polymer has a value α of 0.75 or more, when p, q, r and s are defined as a component proportion (molar proportion) of a structural unit represented by Formula (1), a component proportion of a structural unit represented by Formula (2), a component proportion of a structural unit represented by Formula (3), and a component proportion of a structural unit represented by Formula (4), in the polymer, respectively.

公开(公告)号：US20220289886A1

公开(公告)日：2022-09-15

申请号：US17688950

申请日：2022-03-08

申请人： ENEOS MATERIALS CORPORATION

发明人： Toshimitsu KIKUCHI ,  Hirofumi SENGA ,  Tatsumoto NAKAHAMA ,  Takuya SANO ,  Takato FUKUMOTO ,  Yuto SAKAGAMI ,  Toshiyuki HAYAKAWA

IPC分类号： C08F236/14 ,  C09J7/30 ,  C09J153/02

摘要： Provided is a block copolymer containing 10 mass % or more of a polymer (A1) having a multi-branched structure having four or more polymer chains, the polymer chain having a polymer block A containing 70 mass % or more of a structural unit derived from a conjugated diene compound and a polymer block B containing 70 mass % or more of a structural unit derived from an aromatic vinyl compound, the block copolymer having a functional group F containing at least one element selected from the group consisting of nitrogen, silicon, oxygen, and sulfur in a part or all of terminals of the four or more polymer chains, and the block copolymer having a value α of 0.75 or more represented by the following equation (i), when p, q, r, and s are defined as component proportions (molar proportions) of structural unit represented by the following formula (1) to formula (4), in the polymer, respectively.