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公开(公告)号：EP3266818B1
公开(公告)日：2019-01-02
申请号：EP16758633.8
申请日：2016-03-01
发明人： NAKATANI, Kenji , YABE, Yudai
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公开(公告)号：EP3862391A1
公开(公告)日：2021-08-11
申请号：EP19869569.4
申请日：2019-10-04
发明人： NAKATANI, Kenji , KUMAKI, Kentaro
摘要： To provide a rubber composition in which wet performance, wear resistance, low rolling resistance, and breaking resistance are highly balanced. A rubber composition comprising a rubber component comprising at least three polymers and a filler, wherein the rubber component is separated into at least two polymer phases: a polymer phase (1) with the highest tan δ peak temperature; and a polymer phase (2) with the lowest peak temperature; the polymer phases (1) and (2) are incompatible with each other; the polymer phase (1) at least comprises the modified conjugated diene-based polymers (A1) and (A2), and the filler; the modified conjugated diene-based polymer (A1) has a particular weight-average molecular weight and a particular contracting factor (g'); and when a filler concentration and an average aggregate area of the filler in the polymer phase (1) are defined as X and Y, respectively, an formula (1): Y
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公开(公告)号：EP3305842B1
公开(公告)日：2019-03-13
申请号：EP16802759.7
申请日：2016-05-16
发明人： HIGA, Tomoki , NAKATANI, Kenji
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4.发明公开
公开(公告)号：EP3725841A1
公开(公告)日：2020-10-21
申请号：EP18888901.8
申请日：2018-09-13
IPC分类号： C08L23/08 , B60C1/00 , B62D55/253 , B65G15/32 , C08F210/02 , C08F212/08 , C08F236/04 , C08L9/00 , C08L91/00 , F16F15/08 , F16L11/04
摘要： Provided is a rubber composition having excellent crack resistance and processability. A rubber composition comprises: a rubber component (a) containing a multicomponent copolymer (a1) that contains a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit; and a softener (b), wherein a content of the softener (b) is 30 parts to 150 parts by mass with respect to 100 parts by mass of the rubber component (a).
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5.发明公开
公开(公告)号：EP2504365A1
公开(公告)日：2012-10-03
申请号：EP10785292.3
申请日：2010-11-24
摘要： A process for producing functional polymer, the process comprising the steps of reacting an anionic initiator including a functional group with a stabilizing monomer to produce a stabilized initiator, reacting the stabilized initiator with monomer capable of being anionically polymerized to produce a polymer, and terminating the polymer.
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公开(公告)号：EP3483187A1
公开(公告)日：2019-05-15
申请号：EP17823925.7
申请日：2017-06-06
发明人： NAKATANI, Kenji
摘要： A method for producing a polymer according to the present invention is a method for producing a polymer having at least two peaks in a molecular weight distribution curve of the polymer obtained by measurement of molecular weight by GPC, and comprising a conjugated diene-based polymer or a copolymer of an aromatic vinyl compound and a diene-based compound, the method using a reaction apparatus comprising two or more continuous polymerization reactors connected in series, and comprising introducing a monomer component and a polymerization initiator into a first reactor for a polymerization reaction, and then adding the monomer component and the polymerization initiator before each of the second and subsequent reactors for polymerization, a weight average molecular weight of a polymer (A) obtained in the first reactor being 300,000 to 2,000,000.
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公开(公告)号：EP3266818A1
公开(公告)日：2018-01-10
申请号：EP16758633.8
申请日：2016-03-01
发明人： NAKATANI, Kenji , YABE, Yudai
IPC分类号： C08L15/00 , B60C1/00 , C08C19/25 , C08F8/42 , C08F36/06 , C08F297/02 , C08K3/36 , C08K5/103 , C08L53/00
CPC分类号： C08C19/25 , B60C1/00 , C08C19/22 , C08F8/42 , C08F36/06 , C08F297/02 , C08F297/04 , C08K3/36 , C08K5/103 , C08L9/06 , C08L15/02 , C08L53/00 , C08F236/06 , C08F212/08 , C08F230/08 , C08F212/12 , C08L53/025 , C08K5/548 , C08K3/04 , C08K5/31 , C08K5/47 , C08K5/18 , C08K5/09 , C08K3/22 , C08K3/06 , C08L15/00
摘要： This disclosure is to provide a rubber composition excellent in low loss property and wear resistance without deteriorating the processability. The rubber composition of this disclosure contains a rubber component having a diene-based polymer, a silica, and a glycerin fatty acid ester composition, wherein: the diene-based polymer has 3 or more modified functional groups capable of interacting with the silica merely within a range of 1/4 of an entire chain length from a terminal, and has at least one monomer structural unit of a diene-based polymer among the modified functional groups; and the glycerin fatty acid ester composition has a glycerin fatty acid monoester and a glycerin fatty acid diester of C8 to C28 fatty acids, and a content of the glycerin fatty acid ester composition is 0.5 to 15 parts by mass per 100 parts by mass of the rubber component.
摘要翻译： 本公开旨在提供低损耗性和耐磨性优异而不降低可加工性的橡胶组合物。 本公开的橡胶组合物包含具有二烯系聚合物，二氧化硅和甘油脂肪酸酯组合物的橡胶组分，其中：二烯系聚合物具有3个或更多个能够仅与二氧化硅相互作用的改性官能团 从末端起整个链长的1/4的范围，并且在修饰的官能团中具有至少一个二烯基聚合物的单体结构单元; 所述甘油脂肪酸酯组合物含有C8〜C28脂肪酸的甘油脂肪酸单酯和甘油脂肪酸二酯，所述甘油脂肪酸酯组合物的含量相对于100质量份的所述甘油脂肪酸酯组合物为0.5〜15质量份 橡胶部件。
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公开(公告)号：EP3231834A1
公开(公告)日：2017-10-18
申请号：EP15866707.1
申请日：2015-12-09
发明人： SUZUKI, Shouko , NAKATANI, Kenji
IPC分类号： C08J3/20 , C08K3/00 , C08K3/36 , C08K5/09 , C08K5/31 , C08K5/36 , C08K5/405 , C08K5/54 , C08K5/548 , C08L9/06
CPC分类号： C08K13/02 , C08J3/203 , C08J2309/06 , C08K3/36 , C08K5/0025 , C08K5/31 , C08K5/405 , C08K5/47 , C08K5/548 , C08L9/06 , C08L25/10
摘要： The present invention provides a method for producing a rubber composition containing a rubber component (A) which contains a copolymer of a conjugated diene compound and an aromatic vinyl compound, in which the conjugated diene compound amount in the copolymer is 50% by mass or more and 73% by mass or less and the molecular weight at the peak top of the molecular weight distribution of the polystyrene-equivalent number-average molecular weight of the copolymer as measured through gel permeation chromatography is 100,000 or more and 600,000 or less, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one accelerator (D) selected from guanidines, sulfenamides, thiazoles, thiurams, thioureas, dithiocarbamates and xanthates, wherein the rubber composition is kneaded in plural stages, and in the first stage (X) of kneading, the rubber component (A), all or a part of the inorganic filler (B), all or a part of the silane coupling agent (C) and the accelerator (D) are added and kneaded. The production method can produce a rubber composition excellent in low-heat-generation property and abrasion resistance.
摘要翻译： 本发明提供含有橡胶成分（A）的橡胶组合物的制造方法，该橡胶组合物含有共轭二烯化合物与芳香族乙烯基化合物的共聚物，共聚物中的共轭二烯化合物量为50质量％以上 和73质量％以下，且通过凝胶渗透色谱法测得的共聚物的聚苯乙烯换算的数均分子量的分子量分布峰顶的分子量为100,000以上且600,000以下，填料 （B），硅烷偶联剂（C）和选自胍类，次磺酰胺类，噻唑类，秋兰姆类，硫脲类，二硫代氨基甲酸酯类和黄原酸酯类中的至少一种促进剂（D），其中，橡胶组合物以多阶段混炼， 在捏合的第一阶段（X）中，橡胶组分（A），全部或部分无机填料（B），全部或部分硅烷偶联剂（C）和促进剂 r（D）加入并捏合。 该制造方法可以制造低发热性和耐磨损性优异的橡胶组合物。
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9.发明公开
公开(公告)号：EP3744779A1
公开(公告)日：2020-12-02
申请号：EP18902813.7
申请日：2018-12-19
IPC分类号： C08L15/00 , B60C1/00 , B62D55/253 , B65G15/32 , C08C19/22 , C08C19/25 , C08L9/00 , F16F1/36 , F16F15/08 , F16L11/10
摘要： Provided is a rubber composition capable of producing a rubber article having excellent balance between crack growth resistance and low heat generating property. The rubber composition comprises: a rubber component (a) containing a modified conjugated diene-based polymer (a1) and a multicomponent copolymer (a2) that contains a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit; and a filler (b).
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公开(公告)号：EP3305842A1
公开(公告)日：2018-04-11
申请号：EP16802759.7
申请日：2016-05-16
发明人： HIGA, Tomoki , NAKATANI, Kenji
CPC分类号： B60C1/0016 , B60C1/00 , B60C2011/0025 , C08K3/36 , C08L9/06 , C08L15/00 , C08L21/00
摘要： This disclosure aims to provide a rubber composition and a tire capable of achieving both the low loss property and the wear resistance at a high degree. The rubber composition of this disclosure is a rubber composition comprising a rubber component containing 2 or more polymer components and a filler containing at least a silica, wherein: the rubber component is separated into two or more polymer phases with different peak temperatures of tan δ temperature dispersion curve; a peak temperature of tan δ temperature dispersion curve of a polymer phase with a lowest peak temperature of tan δ temperature dispersion curve among the two or more polymer phases is -110°C to -20°C; a peak temperature of tan δ temperature dispersion curve of a polymer phase with a highest peak temperature of tan δ temperature dispersion curve among the two or more polymer phases is -10°C to 10°C; a compounding amount of the filler per 100 parts by mass of the rubber component is 30 to 130 parts by mass; 30 mass% or more of the filler exists in the polymer phase with the lowest peak temperature of tan δ temperature dispersion curve; and the filler has an average aggregate area of 2100 nm 2 or less.
摘要翻译： 本公开旨在提供一种能够高度兼顾低损耗性和耐磨损性的橡胶组合物和轮胎。 本公开的橡胶组合物是包含含有2种或更多种聚合物组分的橡胶组分和至少含有二氧化硅的填料的橡胶组合物，其中：将橡胶组分分离成具有不同的tanδ温度峰值温度的两种或更多种聚合物相 色散曲线; 两种或更多种聚合物相中具有最低tanδ温度分散曲线的峰温度的聚合物相的tanδ温度分散曲线的峰值温度为-110℃至-20℃; 两个或更多个聚合物相中具有最高tanδ温度分散曲线峰温度的聚合物相的tanδ温度分散曲线的峰值温度为-10℃至10℃; 每100质量份橡胶组分的填料配混量为30至130质量份; 在tanδ温度分散曲线的峰值温度最低的聚合物相中存在30质量％以上的填料; 并且填料具有2100nm 2或更小的平均聚集面积。
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