公开(公告)号：US20170292007A1

公开(公告)日：2017-10-12

申请号：US15482848

申请日：2017-04-10

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Ryota KITAGO ,  Yasumasa BITO ,  Ryuichi TOKIMUNE

IPC: C08K5/3417 ,  B29B7/00 ,  C08K5/548 ,  C08J3/24 ,  C08K5/3435 ,  C08K3/36

CPC classification number: C08K5/3417 ,  B29B7/002 ,  B29B7/005 ,  B29B7/183 ,  B29B7/7495 ,  B29B7/90 ,  B29K2009/06 ,  B29K2509/00 ,  B29L2030/00 ,  B60C1/00 ,  C08J3/201 ,  C08J3/203 ,  C08J3/24 ,  C08J2309/06 ,  C08J2321/00 ,  C08K3/36 ,  C08K5/3435 ,  C08K5/548

Abstract: A method for manufacturing a rubber composition includes kneading a rubber component, an inorganic filler and a thioester-based silane coupling agent, and adding a vulcanizing agent and one or more compounds selected from the group of an imide compound and an N-oxyl compound to a mixture of the rubber component, the inorganic filler, and the thioester-based silane coupling agent such that the vulcanizing agent and the imide compound and/or the N-oxyl compound are kneaded with the mixture including the rubber component, the inorganic filler, and the thioester-based silane coupling agent.

公开(公告)号：US20170015812A1

公开(公告)日：2017-01-19

申请号：US15124754

申请日：2014-10-21

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tatsuya MIYAZAKI ,  Ryuichi TOKIMUNE

IPC: C08K5/18 ,  C08K3/36 ,  C08J3/22 ,  C08K5/11 ,  C08K13/02 ,  C08L7/00 ,  B60C1/00 ,  C08K5/101

CPC classification number: C08K5/18 ,  B60C1/00 ,  B60C1/0016 ,  B60C1/0025 ,  B60C2001/005 ,  C08J3/22 ,  C08J2307/00 ,  C08J2321/00 ,  C08J2409/00 ,  C08K3/36 ,  C08K5/101 ,  C08K5/103 ,  C08K5/11 ,  C08K5/47 ,  C08K13/02 ,  C08K2201/006 ,  C08L7/00 ,  C08L9/00 ,  C08L71/02 ,  C08L21/00

Abstract: Provided is a rubber composition for tires which can prevent discoloration and improve ozone resistance while maintaining or improving good elongation at break, and further can be produced with high efficiency. Also provided are a pneumatic tire formed from the same, and a method for producing the same. Included is a rubber composition for tires, including: a rubber component; a phenylenediamine antioxidant; and a masterbatch, the masterbatch containing a specific nonionic surfactant and a silica having a BET value of 40-250 m2/g at a mass ratio of 1:5 to 1:0.15, the rubber component containing a diene rubber in an amount of 70-100% by mass per 100% by mass of the rubber component, the rubber composition including, per 100 parts by mass of the rubber component, 1.0-10.0 parts by mass of the phenylenediamine antioxidant and 0.1-5.0 parts by mass of the nonionic surfactant introduced in the form of the masterbatch.

Abstract translation: 本发明提供一种轮胎用橡胶组合物，其能够防止变色，提高耐臭氧性，同时保持或提高良好的断裂伸长率，并且还可以高效率地制造。 还提供了一种由其形成的充气轮胎及其制造方法。 包括轮胎用橡胶组合物，包括：橡胶组分; 苯二胺抗氧化剂; 和母料，含有特定的非离子表面活性剂的母料和质量比为1:5至1:0.15的BET值为40-250m2 / g的二氧化硅，含有70重量％的二烯橡胶的橡胶组分 相对于100质量％的橡胶成分为-100质量％，相对于100质量份橡胶成分，橡胶组合物包含1.0〜10.0质量份的苯二胺抗氧化剂和0.1〜5.0质量份的非离子型 表面活性剂以母粒的形式引入。

公开(公告)号：US20160122517A1

公开(公告)日：2016-05-05

申请号：US14894446

申请日：2014-05-19

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Ryuichi TOKIMUNE ,  Tatsuya MIYAZAKI ,  Masanobu NAKAMURA

IPC: C08L7/00

CPC classification number: C08L7/00 ,  B60C1/00 ,  C08G2650/58 ,  C08K3/04 ,  C08K3/06 ,  C08L9/00 ,  C08L71/02 ,  C08L2205/02 ,  C08L2205/035 ,  C08L91/00 ,  C08L91/06 ,  C08K5/09 ,  C08K3/22 ,  C08K5/47 ,  C08K5/18 ,  C08K5/375 ,  C08L9/06

Abstract: Provided are a rubber composition for tires, capable of improving discoloration resistance and tire appearance while maintaining good handling stability, crack resistance, and ozone resistance or improving these properties, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires including a rubber component having a combined amount of polybutadiene rubber, natural rubber, and polyisoprene rubber of 90% by mass or more based on 100% by mass of a rubber component; sulfur; a pluronic nonionic surfactant in an amount of 0.1 to 5.0 parts by mass per 100 parts by mass of the rubber component; and carbon black in an amount of 2 to 70 parts by mass per 100 parts by mass of the rubber component.

Abstract translation: 提供一种轮胎用橡胶组合物，能够提高耐变色性和轮胎外观，同时保持良好的操作稳定性，抗裂性和耐臭氧性或改善这些性能，以及由橡胶组合物形成的充气轮胎。 本发明涉及一种轮胎用橡胶组合物，其包含基于100质量％的橡胶组分为90质量％以上的聚丁二烯橡胶，天然橡胶和聚异戊二烯橡胶的组合量的橡胶成分; 硫; 相对于100质量份橡胶成分为0.1〜5.0质量份的普流尼克非离子表面活性剂; 相对于100质量份橡胶成分为2〜70质量份的炭黑。