Title:
【発明の名称】トレツド用ゴム組成物
Document Type and Number:
Japanese Patent JP2613043
Kind Code:
B2
Abstract:
PURPOSE:To obtain a rubber composition for tread low in fuel consumption and improved in abrasion resistance and braking performance on a wet road surface and a snowed or frozen road surface, by mixing a natural rubber or IR with a specific SBR and carbon black. CONSTITUTION:A rubber composition containing 20-80pts.wt. natural rubber and/or polyisoprene rubber (a) and 80-20pts.wt. styrene/butadiene copolymer rubber having a bound styrene content of 10-30wt.% and a 1,2-vinyl bond content in the butadiene part of 10-805 (the total is the rubbers being 100pts. wt.), wherein said styrene/butadiene copolymer rubber has atomic group of the formula introduced as terminal or internal group of they molecular chain and 30-80pts.wt. per 100pts.wt. stock rubber, carbon black (b) of an IA of 60-70, Na2SA/IA of 1.18-1.40 and DELTAD50 (Dst) of 70-130mmu as a reinforcement.
Inventors:
Kinya Kawakami
Application Number:
JP3577887A
Publication Date:
May 21, 1997
Filing Date:
February 20, 1987
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
C08L15/00; B60C1/00; C08K3/04; C08L7/00; C08L9/00; C08L9/06; C08L19/00; C08L21/00; C08L47/00; (IPC1-7): C08L15/00; B60C1/00; C08K3/04; C08L7/00; C08L9/00
Domestic Patent References:
| JP6227442A | ||||
| JP5922940A | ||||
| JP5989339A | ||||
| JP61231037A | ||||
| JP6250349A |
Attorney, Agent or Firm:
Shinichi Ogawa (2 outside)