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公开(公告)号：US20200262961A1
公开(公告)日：2020-08-20
申请号：US16753882
申请日：2018-09-28
发明人： Takuro SAKURAI , Takashi IIZUKA , Mana FUJII , Hisakatsu HAMA
IPC分类号： C08F297/04 , C08K3/36 , B60C1/00 , B60C11/00
摘要： A conjugated diene-based rubber including a polymer block (A) containing isoprene monomer unit as the main component and a polymer block (B) containing 1,3-butadiene monomer unit as the main component, wherein at least one of the polymer block (A) and the polymer block (B) contains a unit of a vinyl compound having a functional group interactive with silica, the polymer block (A) has a weight average molecular weight (Mw) in the range of 1,000 to 30,000, and the entire conjugated diene-based rubber has a weight average molecular weight (Mw) in the range of 50,000 to 5,000,000.
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公开(公告)号：US20220185919A1
公开(公告)日：2022-06-16
申请号：US17441077
申请日：2020-03-27
摘要： A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak having the lowest molecular weight in measurement at 60° C. to the proportion of the area of the peak having the lowest molecular weight in measurement at 40° C.
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3.发明公开公开(公告)号：US20240209190A1
公开(公告)日：2024-06-27
申请号：US18288718
申请日：2022-04-19
IPC分类号： C08L9/06 , B60C1/00 , C08F212/08 , C08F236/10 , C08L25/10
CPC分类号： C08L9/06 , B60C1/00 , C08F212/08 , C08F236/10 , C08L25/10 , C08F2810/20
摘要： A conjugated diene polymer contains at least conjugated diene monomer units, wherein the conjugated diene polymer has an ionic strength index of 25% or more and a molecular weight distribution curve where two or more peaks are present when measured by gel permeation chromatography, wherein when among the peaks in the molecular weight distribution curve, a peak having the largest peak area proportion is defined as a first peak, and a peak having the second largest peak area proportion is defined as a second peak, the conjugated diene polymer has an entire molecular weight distribution (Mw/Mn) of 1.50 or more, the first peak has a molecular weight distribution (Mw/Mn) of 1.30 or less, and the second peak has a molecular weight distribution (Mw/Mn) of 1.30 or less.
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公开(公告)号：US20230130221A1
公开(公告)日：2023-04-27
申请号：US17914656
申请日：2021-03-29
摘要： A conjugated diene-based polymer including at least conjugated diene monomer units, and having a shrinkage factor of high molecular weight molecules of 0.4 to 0.8, a degree of adsorption of high molecular weight molecules onto silica of 75% or less, and a degree of adsorption of medium molecular weight molecules of 40 to 100%.
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公开(公告)号：US20210017321A1
公开(公告)日：2021-01-21
申请号：US16981941
申请日：2019-03-26
发明人： Takuro SAKURAI , Takashi IIZUKA , Mana FUJII , Hisakatsu HAMA
IPC分类号： C08F297/04 , C08K3/36 , C08C19/28 , B60C1/00
摘要： A method for producing conjugated diene rubber is provided, including: a first step of obtaining a conjugated diene polymer chain having an active end by polymerizing a monomer comprising a conjugated diene compound and a vinyl compound having a functional group interactive with silica using a polymerization initiator in an inert solvent; a second step of reacting a siloxane compound with the active end of the conjugated diene polymer chain having the active end; and a third step of reacting a hydrocarbyloxysilane compound with the conjugated diene polymer chain with which the siloxane compound has been reacted that is obtained in the second step.
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公开(公告)号：US20200283556A1
公开(公告)日：2020-09-10
申请号：US16753855
申请日：2018-09-28
发明人： Takuro SAKURAI , Takashi IIZUKA , Mana FUJII , Hisakatsu HAMA
IPC分类号： C08F236/10 , C08K3/36 , B60C1/00 , B60C11/00
摘要： A modified conjugated diene rubber having a modifying structure derived from a siloxane compound at at least one terminal of a polymer chain containing conjugated diene monomer unit and a monomer unit of a vinyl compound having a functional group interactive with silica.
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公开(公告)号：US20220153970A1
公开(公告)日：2022-05-19
申请号：US17598591
申请日：2020-03-27
发明人： Yoshitaka SUGINO , Hisakatsu HAMA , Sho KANESAKA
IPC分类号： C08L9/06 , C08F220/56 , C08F230/08 , C08F220/30 , C08F2/06 , C08C19/22 , C08C19/25 , C08K3/04 , C08K3/36
摘要： A rubber composition contains a rubber component, an additive, and a filler, wherein the additive includes a compound including carbon atoms and at least one atomic species selected from the group made of silicon atoms, nitrogen atoms and oxygen atoms; the total number of silicon atoms, nitrogen atoms and oxygen atoms constituting the compound is 0.27 or more and 0.80 or less based on the number of the carbon atoms; the Hansen solubility parameter of the compound satisfies a relationship represented by the following formula (2); and the molecular weight of the compound is 200 or more and 15000 or less. 6≤{4(δD1−δD2)2+(δP1−δP2)2+(δH1−δH2)2}0.5 (2)
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8.发明申请MODIFIED CONJUGATED DIENE-BASED POLYMER, POLYMER COMPOSITION, AND PROCESS FOR PRODUCING MODIFIED CONJUGATED DIENE-BASED POLYMER 审中-公开改性的基于二烯的聚合物，聚合物组合物和生产改性的基于二烯的聚合物的方法公开(公告)号：US20140329963A1
公开(公告)日：2014-11-06
申请号：US14334271
申请日：2014-07-17
发明人： Hisakatsu HAMA
摘要： Disclosed are a modified conjugated diene-based polymer capable of providing a polymer composition improved in tan δ balance, a polymer composition containing the modified conjugated diene-based polymer and silica, and a process for producing the modified conjugated diene-based polymer. The modified conjugated diene-based polymer is obtained by melt-kneading a conjugated diene-based polymer and 0.01 to 2 parts by weight of a Bunte salt per 100 parts by weight of the conjugated diene-based polymer, in the presence of water whose amount is from 0.1 to 1,000 parts by weight per one part by weight of the Bunte salt.
摘要翻译： 公开了能够提供改善的tanδ平衡的聚合物组合物的改性共轭二烯系聚合物，含有改性共轭二烯系聚合物和二氧化硅的聚合物组合物，以及改性共轭二烯系聚合物的制造方法。 改性共轭二烯类聚合物是通过将共轭二烯系聚合物熔融捏合而得到的，在100重量份共轭二烯类聚合物的存在下，将0.01〜2重量份的蓬e盐， 相对于1重量份的Bunte盐为0.1〜1,000重量份。
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公开(公告)号：US20130189462A1
公开(公告)日：2013-07-25
申请号：US13746897
申请日：2013-01-22
发明人： Hisakatsu HAMA , Natsuko SATO
IPC分类号： C08K5/05
摘要： Provided is an item made of a polypropylene resin composition that is suppressed from the emission of volatile organic compound components, examples of which item include a container, a cap of a container, an item for packaging, stationery, a toy, a miscellaneous daily item, an item for furniture, fiber, an agricultural film, an item for automobiles, an item for household electric appliances, an item for medical applications, or an item for building applications. The polypropylene resin composition includes a specific propylene polymer, a specific sugar compound, and a specific compound having a hydroxyphenyl group.
摘要翻译： 本发明提供一种由挥发性有机化合物成分的排出抑制的聚丙烯树脂组合物制成的物品，其中包括容器，容器盖，包装物品，文具，玩具，杂项日用品 家俱用品，纤维，农用薄膜，汽车用品，家电用品，医疗用品，建筑用品。 聚丙烯树脂组合物包括特定的丙烯聚合物，特定的糖化合物和具有羟基苯基的具体化合物。
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10.发明申请OLEFIN POLYMERIZATION CATALYST, PROCESS FOR PRODUCING OLEFIN POLYMER, POLYPROPYLENE RESIN COMPOSITION AND ARTICLE COMPRISING THE SAME 审中-公开烯烃聚合催化剂，生产烯烃聚合物的方法，聚丙烯树脂组合物和包含它们的物品公开(公告)号：US20130109789A1
公开(公告)日：2013-05-02
申请号：US13658880
申请日：2012-10-24
发明人： Hirofumi HAMAKI , Wataru HIRAHATA , Yasuki FUJIWARA , Shuichi KIMATA , Hisakatsu HAMA , Kenji IKEDA
CPC分类号： C08L23/12 , Y02P20/52 , C08F110/06 , C08F4/651 , C08F4/6494 , C08F2500/15 , C08F2500/17 , C08L23/04
摘要： An olefin polymerization catalyst is obtained by bringing the following components (A), (B) and (C) into contact with one another: (A) a solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom and a halogen atom; (B) an organoaluminum compound; and (C) a triether represented by formula (I). An olefin polymerization solid catalyst can be provided having a sufficiently high polymerization activity and an ability to produce an olefin polymer with a low content of low-molecular weight components and amorphous components.
摘要翻译： 通过使以下组分（A），（B）和（C）彼此接触来获得烯烃聚合催化剂：（A）含有钛原子，镁原子和卤素原子的烯烃聚合用固体催化剂组分 ; （B）有机铝化合物; 和（C）由式（I）表示的三醚。 可以提供具有足够高的聚合活性和生产低含量低分子量组分和无定形组分的烯烃聚合物的能力的烯烃聚合固体催化剂。
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