公开(公告)号：US4421891A

公开(公告)日：1983-12-20

申请号：US238875

申请日：1981-02-27

申请人： Itsuo Miyake ,  Keizo Okamoto ,  Motonori Bundo ,  Akihiro Noda

发明人： Itsuo Miyake ,  Keizo Okamoto ,  Motonori Bundo ,  Akihiro Noda

IPC分类号： C08L7/00 ,  B29C67/00 ,  B29D30/00 ,  B29D30/48 ,  B60C15/06 ,  C08K3/04 ,  C08L21/00 ,  C08L61/14

CPC分类号： B60C15/06 ,  C08L21/00

摘要： A rubber composition comprising rubber, novolak-type phenolic resin and carbon black is very rigid and is adapted to be used as a bead filler rubber of a tire. Tires using the rubber composition are excellent in the high speed performance, lateral rigidity, ride feeling and durability.

摘要翻译： 包含橡胶，酚醛清漆型酚醛树脂和炭黑的橡胶组合物是非常刚性的，适于用作轮胎的胎圈橡胶。 使用橡胶组合物的轮胎具有优异的高速性能，侧向刚性，骑乘感和耐久性。

公开(公告)号：US4398582A

公开(公告)日：1983-08-16

申请号：US260552

申请日：1981-05-05

申请人： Kazuaki Yuto ,  Toru Oniki ,  Nobumasa Ikeda ,  Itsuo Miyake

发明人： Kazuaki Yuto ,  Toru Oniki ,  Nobumasa Ikeda ,  Itsuo Miyake

IPC分类号： C08L7/00 ,  B60C1/00 ,  B60C11/00 ,  C08K3/04 ,  C08L9/06 ,  C08L21/00

CPC分类号： C08L7/00 ,  B60C1/0016 ,  C08K3/04 ,  C08L9/06 ,  C08L9/08 ,  C08L9/00

摘要： A pneumatic tire having remarkably low rolling resistance and high wet skid resistance without deteriorating the wear resistance is obtained by using in at least the ground-contact area of its tread, a rubber composition consisting essentially of 100 parts by weight of a mixed elastomer and 40-80 parts by weight of carbon black, the mixed elastomer consisting of 10-60 parts by weight of a solution-polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 5-30% by weight and a trans-1,4 content in butadiene unit of not more than 45% by weight; 10-50 parts by weight of an emulsion-polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 30-50% by weight; and 0-80 parts by weight of at least one rubber having a glass transition temperature of not higher than -50.degree. C., which is selected from the group consisting of natural rubber, synthetic polyisoprene rubber, polybutadiene rubber and an emulsion polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 18-28% by weight. The use of carbon black having a specific surface area of 85-95 m.sup.2 /g, a dibutyl phthalate absorption value of 100-110 ml/100 g, a tinting strength of 95-105 and a half value width of at least 180 m.mu. in the size distribution curve of the aggregates is particularly effective for lowering the rolling resistance.

摘要翻译： 通过在其胎面的至少接地面积中使用基本上由100重量份混合弹性体和40重量份组成的橡胶组合物，获得具有显着低滚动阻力和高抗湿滑性的充气轮胎，而不损害耐磨性 -80重量份的炭黑，所述混合弹性体由10-60重量份的苯乙烯含量为5-30重量％的结合苯乙烯 - 丁二烯共聚物橡胶和反式-1,4-含量 丁二烯单位不超过45重量％; 10-50重量份的苯乙烯含量为30-50重量％的乳液聚合苯乙烯 - 丁二烯共聚物橡胶; 和0-80重量份的玻璃化转变温度不高于-50℃的至少一种橡胶，其选自天然橡胶，合成聚异戊二烯橡胶，聚丁二烯橡胶和乳液聚合的苯乙烯 - 苯乙烯含量为18〜28重量％的丁二烯共聚物橡胶。 使用比表面积为85-95m 2 / g，邻苯二甲酸二丁酯吸收值为100-110ml / 100g，着色强度为95-105，半值宽度为至少180μm的炭黑 在聚集体的尺寸分布曲线中，降低滚动阻力特别有效。