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公开(公告)号：US08580885B2
公开(公告)日：2013-11-12
申请号：US12439769
申请日：2007-09-04
Applicant: Fuminori Ohta , Koji Masaki , Keisuke Kidono
Inventor： Fuminori Ohta , Koji Masaki , Keisuke Kidono
CPC classification number: B60C1/00 , B60C1/0016 , B60C11/14 , C08K3/013 , C08K3/04 , C08K3/36 , C08L7/00 , C08L9/00 , C08L9/06 , C08L15/00 , C08L21/00 , C08L2207/32 , Y02T10/862 , C08L2666/08
Abstract: This invention provides a rubber composition highly balancing flexibility at a low temperature and a low rolling resistance, which is formed by compounding a low-molecular weight conjugated diene-based polymer (B) having at least one functional group, an aromatic vinyl compound content of less than 5% by mass and a weight average molecular weight as measured without terminating by modification through a gel permeation chromatography and converted to polystyrene of not less than 2,000 but less than 150,000 and a filler (C) into a high-molecular weight rubber component (A) having a weight average molecular weight as measured without terminating by modification through a gel permeation chromatography and converted to polystyrene of not less than 150,000.
Abstract translation: 本发明提供了通过将具有至少一个官能团的低分子量共轭二烯系聚合物（B），芳香族乙烯基化合物含量 小于5质量％，并且通过凝胶渗透色谱法改性而不是通过将不小于2,000但小于150,000的聚苯乙烯换算成高分子量橡胶组分的填充剂（C）而不是终止测量的重均分子量 （A）的重均分子量，通过凝胶渗透色谱法进行改性而不终止，转化为不小于15万的聚苯乙烯。
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公开(公告)号：US20100006199A1
公开(公告)日：2010-01-14
申请号：US12439769
申请日：2007-09-04
Applicant: Fuminori Ohta , Koji Masaki , Keisuke Kidono
Inventor： Fuminori Ohta , Koji Masaki , Keisuke Kidono
CPC classification number: B60C1/00 , B60C1/0016 , B60C11/14 , C08K3/013 , C08K3/04 , C08K3/36 , C08L7/00 , C08L9/00 , C08L9/06 , C08L15/00 , C08L21/00 , C08L2207/32 , Y02T10/862 , C08L2666/08
Abstract: This invention provides a rubber composition highly balancing flexibility at a low temperature and a low rolling resistance, which is formed by compounding a low-molecular weight conjugated diene-based polymer (B) having at least one functional group, an aromatic vinyl compound content of less than 5% by mass and a weight average molecular weight as measured without terminating by modification through a gel permeation chromatography and converted to polystyrene of not less than 2,000 but less than 150,000 and a filler (C) into a high-molecular weight rubber component (A) having a weight average molecular weight as measured without terminating by modification through a gel permeation chromatography and converted to polystyrene of not less than 150,000.
Abstract translation: 本发明提供了通过将具有至少一个官能团的低分子量共轭二烯系聚合物（B），芳香族乙烯基化合物含量 小于5质量％，并且通过凝胶渗透色谱法改性而不是通过将不小于2,000但小于150,000的聚苯乙烯换算成高分子量橡胶组分的填充剂（C）而不是终止测量的重均分子量 （A）的重均分子量，通过凝胶渗透色谱法进行改性而不终止，转化为不小于15万的聚苯乙烯。
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公开(公告)号：US20110190440A1
公开(公告)日：2011-08-04
申请号：US12529979
申请日：2008-03-05
Applicant: Fuminori Ohta , Koji Masaki
Inventor： Fuminori Ohta , Koji Masaki
CPC classification number: C08L7/00 , B60C1/0008 , B60C1/0016 , B60C1/0025 , C08K3/013 , C08L9/00 , C08L9/06 , C08L2666/08
Abstract: This invention provides a rubber composition being excellent in the workability during production and the heat resistance and high in the storage elastic modulus (G′) and small in the loss tangent (tan δ), which is formed by compounding 1-60 parts by mass of a low-molecular weight conjugated diene-based polymer (B) having a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 10,000-200,000 and a vinyl bond content in a conjugated diene compound portion of not less than 40% based on 100 parts by mass of a rubber component (A) comprised of at least one selected from the group consisting of natural rubber, polyisoprene rubber, styrene-butadiene copolymer rubber, polybutadiene rubber and isobutylene isoprene rubber, wherein the rubber component (A) comprises natural rubber and/or polyisoprene rubber and a proportion of styrene units in total of the low-molecular weight conjugated diene-based polymer (B) is less than 5% by mass.
Abstract translation: 本发明提供一种橡胶组合物，其制造中的加工性和耐热性优异，储存弹性模量（G'）高，损耗角正切（tanδ）小，通过将1-60质量份 的通过凝胶渗透色谱法测定的重均分子量为10,000〜200000的聚苯乙烯的低分子量共轭二烯类聚合物（B），共轭二烯化合物部分中的乙烯基含量不小于 基于100质量份由选自天然橡胶，聚异戊二烯橡胶，苯乙烯 - 丁二烯共聚物橡胶，聚丁二烯橡胶和异丁烯异戊二烯橡胶中的至少一种组成的橡胶组分（A）为100重量％，其中橡胶组分 A）包含天然橡胶和/或聚异戊二烯橡胶，并且低分子量共轭二烯系聚合物（B）的总量中苯乙烯单元的比例小于5质量％ 屁股。
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公开(公告)号：US09879129B2
公开(公告)日：2018-01-30
申请号：US12529979
申请日：2008-03-05
Applicant: Fuminori Ohta , Koji Masaki
Inventor： Fuminori Ohta , Koji Masaki
CPC classification number: C08L7/00 , B60C1/0008 , B60C1/0016 , B60C1/0025 , C08K3/013 , C08L9/00 , C08L9/06 , C08L2666/08
Abstract: This invention provides a rubber composition being excellent in the workability during production and the heat resistance and high in the storage elastic modulus (G′) and small in the loss tangent (tan δ), which is formed by compounding 1-60 parts by mass of a low-molecular weight conjugated diene-based polymer (B) having a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 10,000-200,000 and a vinyl bond content in a conjugated diene compound portion of not less than 40% based on 100 parts by mass of a rubber component (A) comprised of at least one selected from the group consisting of natural rubber, polyisoprene rubber, styrene-butadiene copolymer rubber, polybutadiene rubber and isobutylene isoprene rubber, wherein the rubber component (A) comprises natural rubber and/or polyisoprene rubber and a proportion of styrene units in total of the low-molecular weight conjugated diene-based polymer (B) is less than 5% by mass.
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