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公开(公告)号：US09003864B2
公开(公告)日：2015-04-14
申请号：US13537213
申请日：2012-06-29
申请人： Michio Hirayama
发明人： Michio Hirayama
CPC分类号： G01N3/56 , G01M17/022 , G01N33/445 , G01N2001/2873 , G01N2203/0226 , G01N2203/0298 , G01N2203/0676
摘要： A method for estimating wear resistance of a tread portion of a tire comprises: a tire manufacturing step in which the tire to be evaluated is manufactured; a rubber seat sampling step in which an evaluation rubber seat is cut out from the tread portion of the tire to include a part of the tread surface; an abrasion step in which the rubber seat is subjected to abrasion by the use of an indoor wear testing machine; and a wear resistance estimating step in which the wear resistance of the tire is estimated based on a state of the wear of the rubber seat caused in the abrasion step.
摘要翻译： 一种用于估计轮胎的胎面部分的耐磨性的方法包括：轮胎制造步骤，其中制造待评估的轮胎; 橡胶座取样步骤，其中评估橡胶座从轮胎的胎面部分切出以包括胎面表面的一部分; 通过使用室内磨损试验机对橡胶座进行磨损的磨损工序; 以及耐磨损估计步骤，其中基于在磨损步骤中引起的橡胶座的磨损状态来估计轮胎的耐磨性。
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公开(公告)号：US20110136962A1
公开(公告)日：2011-06-09
申请号：US12963147
申请日：2010-12-08
申请人： Takayuki HATTORI , Ai Matsuura , Michio Hirayama , Kenichi Uesaka
发明人： Takayuki HATTORI , Ai Matsuura , Michio Hirayama , Kenichi Uesaka
IPC分类号： C08K3/36
CPC分类号： C08K5/548 , B60C1/0016 , B60C1/0025 , C08K3/36 , C08L7/00 , C08L9/00 , C08L9/06 , C08L83/04 , C08L21/00 , C08L2666/08 , C08L2666/02
摘要： It is an object of the present invention to provide a tire rubber composition excellent in performances such as silica dispersibility and processability. The present invention relates to a tire rubber composition, comprising: a rubber component; silica; and a silane coupling agent, wherein the silica has a CTAB specific surface area of 180 m2/g or more and a BET specific surface area of 185 m2/g or more, and the silane coupling agent is a copolymer comprising units A represented by formula (1) and units B represented by formula (2), and the proportion of the units B is 1 to 70 mol % of the total molar amount of the units A and the units B.
摘要翻译： 本发明的目的是提供二氧化硅分散性和加工性能优异的轮胎橡胶组合物。 本发明涉及一种轮胎橡胶组合物，其包含：橡胶组分; 二氧化硅 和硅烷偶联剂，其中所述二氧化硅的CTAB比表面积为180m 2 / g以上，BET比表面积为185m 2 / g以上，所述硅烷偶联剂为包含由式 （1）和式（2）所示的单元B，单元B的比例为单元A和单元B的总摩尔量的1〜70摩尔％。
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公开(公告)号：US20050211362A1
公开(公告)日：2005-09-29
申请号：US11060793
申请日：2005-02-18
申请人： Michio Hirayama
发明人： Michio Hirayama
CPC分类号： B60C15/06 , B60C15/0607 , B60C2015/0614 , Y02T10/862 , Y10T152/10828 , Y10T152/10846
摘要： The present invention provides a pneumatic radial tire, in which rolling resistance is reduced and durability is improved without losing toe-chip resistance when assembling the rim. More specifically, the present invention relates to a pneumatic radial tire having a chafer comprising a rubber composition having complex modulus of 9 to 13 MPa measured under conditions of temperature of 70° C., frequency of 10 Hz and dynamic strain of ±2%, loss tangent of 0.08 to 0.11 and tensile elongation at break of at least 230% measured according to JIS-K6251.
摘要翻译： 本发明提供了一种充气子午线轮胎，其中滚动阻力降低并且耐久性得到改善，而在组装轮辋时不会损失趾部片的阻力。 更具体地说，本发明涉及一种具有胎圈包布的充气子午线轮胎，其包括在温度为70℃，频率为10Hz，动态应变为±2％的条件下测定的复数模量为9〜13MPa的橡胶组合物， 根据JIS-K6251测量的损耗角正切为0.08至0.11，断裂伸长率至少为230％。
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公开(公告)号：US20130036790A1
公开(公告)日：2013-02-14
申请号：US13537213
申请日：2012-06-29
申请人： Michio HIRAYAMA
发明人： Michio HIRAYAMA
CPC分类号： G01N3/56 , G01M17/022 , G01N33/445 , G01N2001/2873 , G01N2203/0226 , G01N2203/0298 , G01N2203/0676
摘要： A method for estimating wear resistance of a tread portion of a tire comprises: a tire manufacturing step in which the tire to be evaluated is manufactured; a rubber seat sampling step in which an evaluation rubber seat is cut out from the tread portion of the tire to include a part of the tread surface; an abrasion step in which the rubber seat is subjected to abrasion by the use of an indoor wear testing machine; and a wear resistance estimating step in which the wear resistance of the tire is estimated based on a state of the wear of the rubber seat caused in the abrasion step.
摘要翻译： 一种用于估计轮胎的胎面部分的耐磨性的方法包括：轮胎制造步骤，其中制造待评估的轮胎; 橡胶座取样步骤，其中评估橡胶座从轮胎的胎面部分切出以包括胎面表面的一部分; 通过使用室内磨损试验机对橡胶座进行磨损的磨损工序; 以及耐磨损估计步骤，其中基于在磨损步骤中引起的橡胶座的磨损状态来估计轮胎的耐磨性。
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公开(公告)号：US20130012660A1
公开(公告)日：2013-01-10
申请号：US13541988
申请日：2012-07-05
申请人： Michio HIRAYAMA
发明人： Michio HIRAYAMA
IPC分类号： C08L9/06
CPC分类号： C08C19/44 , C08L15/00 , C08L19/006
摘要： The present invention provides a tire rubber composition with which the grip performance, the abrasion resistance, and the performance in terms of rolling resistance are improved in a balanced manner. The present invention relates to a tire rubber composition comprising: a modified diene rubber A which is modified with a specific acrylamide compound; and a modified diene rubber B which is modified with a specific modifying compound alone or together with a specific silicon or tin compound, a weight average molecular weight of a total of the modified diene rubbers A and B being 300,000 to 1,400,000.
摘要翻译： 本发明提供了一种轮胎橡胶组合物，其平衡地改善了抓地性能，耐磨性和滚动阻力性能。 本发明涉及一种轮胎橡胶组合物，其包含：用特定丙烯酰胺化合物改性的改性二烯橡胶A; 和改性二烯橡胶B，其用单独的特定改性化合物或特定的硅或锡化合物改性，改性二烯橡胶A和B的总重量平均分子量为30万至140万。
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公开(公告)号：US20090005481A1
公开(公告)日：2009-01-01
申请号：US12213052
申请日：2008-06-13
申请人： Hirokazu Ishida , Michio Hirayama
发明人： Hirokazu Ishida , Michio Hirayama
IPC分类号： C08K5/09
CPC分类号： B60C1/0016 , B60C1/0025 , B60C2015/0614 , C08K3/36 , C08K5/098 , C08L7/00 , C08L15/00 , Y02T10/862 , C08L2666/08
摘要： A rubber composition for a tire comprising a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, not less than 15 parts by mass of silica based on 100 parts by mass of the rubber component, and not less than 0.5 part by mass of calcium stearate based on 100 parts by mass of the rubber component, a tire member made using the rubber composition for a tire, and a tire made using the tire member.
摘要翻译： 一种轮胎用橡胶组合物，其含有橡胶成分，所述橡胶成分含有天然橡胶和环氧化天然橡胶中的至少一种，相对于100质量份所述橡胶成分为15质量份以上的二氧化硅，且不小于0.5份 基于100质量份橡胶组分的硬脂酸钙，使用轮胎用橡胶组合物制成的轮胎构件和使用该轮胎构件制造的轮胎。
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公开(公告)号：US08865836B2
公开(公告)日：2014-10-21
申请号：US13541988
申请日：2012-07-05
申请人： Michio Hirayama
发明人： Michio Hirayama
CPC分类号： C08C19/44 , C08L15/00 , C08L19/006
摘要： The present invention provides a tire rubber composition with which the grip performance, the abrasion resistance, and the performance in terms of rolling resistance are improved in a balanced manner. The present invention relates to a tire rubber composition comprising: a modified diene rubber A which is modified with a specific acrylamide compound; and a modified diene rubber B which is modified with a specific modifying compound alone or together with a specific silicon or tin compound, a weight average molecular weight of a total of the modified diene rubbers A and B being 300,000 to 1,400,000.
摘要翻译： 本发明提供了一种轮胎橡胶组合物，其平衡地改善了抓地性能，耐磨性和滚动阻力性能。 本发明涉及一种轮胎橡胶组合物，其包含：用特定丙烯酰胺化合物改性的改性二烯橡胶A; 和改性二烯橡胶B，其用单独的特定改性化合物或特定的硅或锡化合物改性，改性二烯橡胶A和B的总重量平均分子量为30万至140万。
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公开(公告)号：US08846791B2
公开(公告)日：2014-09-30
申请号：US12962686
申请日：2010-12-08
申请人： Takayuki Hattori , Ai Matsuura , Michio Hirayama , Kenichi Uesaka
发明人： Takayuki Hattori , Ai Matsuura , Michio Hirayama , Kenichi Uesaka
CPC分类号： B60C1/0025 , B60C1/0016 , C08C19/06 , C08K3/36 , C08K5/548 , C08L7/00 , C08L15/00 , C08L83/04 , Y02T10/862 , C08L9/00
摘要： It is an object of the present invention to provide a tire rubber composition excellent in performances such as silica dispersibility and processability. The present invention relates to a tire rubber composition, comprising: a rubber component that contains an epoxidized natural rubber; silica; and a silane coupling agent, wherein the amount of the epoxidized natural rubber in 100% by mass of the rubber component is 15% by mass or more, the silica has a CTAB specific surface area of 180 m2/g or more and a BET specific surface area of 185 m2/g or more, and the silane coupling agent contains a mercapto group.
摘要翻译： 本发明的目的是提供二氧化硅分散性和加工性能优异的轮胎橡胶组合物。 本发明涉及一种轮胎橡胶组合物，其包含：含有环氧化天然橡胶的橡胶成分; 二氧化硅 和硅烷偶联剂，其中100质量％的橡胶成分中的环氧化天然橡胶的量为15质量％以上，二氧化硅的CTAB比表面积为180m 2 / g以上，BET特异性 表面积为185m 2 / g以上，硅烷偶联剂含有巯基。
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9.发明授权Pneumatic radial tire having base tread and cap tread with the base tread including kraft paper ground product 失效气动子午线轮胎具有底部胎面和胎面胎面，底部胎面包括牛皮纸研磨产品公开(公告)号：US07766062B2
公开(公告)日：2010-08-03
申请号：US11335544
申请日：2006-01-20
申请人： Michio Hirayama
发明人： Michio Hirayama
CPC分类号： B60C11/00 , B60C11/005 , B60C2011/0025 , Y10T152/10513
摘要： A pneumatic radial tire that can improve maneuver stability while maintaining riding comfort is provided. The pneumatic radial tire has a tire tread including at least two layers of a base tread and a cap tread arranged externally in a radial direction of the base tread. The base tread is formed by a base tread rubber composition including at least 2-20 parts by weight of a kraft paper ground product relative to 100 parts by weight of a rubber component. The base tread has its ratio E*a/E*b of a complex elastic modulus in a circumferential direction E*a to a complex elastic modulus in a tire radial direction E*b set to be at least 1.5, each of the complex elastic moduli E*a and E*b being measured at a temperature of 70° C., a frequency of 10 Hz, and a dynamic strain of ±1% at a tire maximum width position in a state where the tire is attached to a rim and filled to a prescribed internal pressure.
摘要翻译： 提供了一种可以提高机动稳定性同时保持乘坐舒适性的充气子午线轮胎。 所述充气子午线轮胎具有轮胎胎面，所述轮胎胎面包括至少两层底座胎面和在所述胎面的径向外侧设置的胎面胎面。 基底胎面由相对于100重量份的橡胶组分包含至少2-20重量份的牛皮纸研磨产物的基底胎面橡胶组合物形成。 基底胎面的圆周方向E * a的复数弹性模量与轮胎径向E * b的复数弹性模量的比E * a / E * b设定为至少1.5，复合弹性体 在轮胎附接到轮辋的状态下，在70℃的温度，10Hz的频率和轮胎最大宽度位置处的±1％的动态应变中测量模量E * a和E * b 并填充到规定的内部压力。
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公开(公告)号：US20060229396A1
公开(公告)日：2006-10-12
申请号：US11449769
申请日：2006-06-09
IPC分类号： C08K5/09
CPC分类号： C08K5/3477 , B60C1/00 , B60C2009/1864 , C08K5/098 , C08L7/00 , C08L21/00 , C08L61/12 , C08L2666/16
摘要： The present invention provides a rubber composition in which increase in elastic modulus due to thermal fatigue is small, change in properties over time is prevented, durability is significantly improved, and the pneumatic tire has a strip which includes the rubber composition. More specifically, the present invention provides a rubber composition which includes 100 parts by weight of (A) a rubber component which includes natural rubber and/or isoprene rubber, 4 to 6 parts by weight of (B) sulfur, 0.5 to 2.0 parts by weight of (C) a resin containing resorcin or a derivative thereof, 0.5 to 2.0 parts by weight of (D) a compound capable of donating a methylene group, and (E) a cobalt metallic salt. The present invention also provides a pneumatic tire having a strip with the above-described rubber composition, which is located on a breaker edge.
摘要翻译： 本发明提供一种橡胶组合物，其中热疲劳引起的弹性模量的增加小，防止了随时间改变的性能，耐久性显着提高，并且充气轮胎具有包括橡胶组合物的条带。 更具体地说，本发明提供一种橡胶组合物，其包含100重量份的（A）橡胶组分，其包含天然橡胶和/或异戊二烯橡胶，4至6重量份的（B）硫，0.5至2.0重量份 （C）含有间苯二酚或其衍生物的树脂的重量为0.5〜2.0重量份（D）能够提供亚甲基的化合物，和（E）钴金属盐。 本发明还提供一种具有上述橡胶组合物的条带的充气轮胎，其位于断屑器边缘上。
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