Title:
RUBBER COMPOSITION FOR TIRE TREAD
Document Type and Number:
Japanese Patent JP3913346
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a rubber compsn. which gives a tire exhibiting a low rolling resistance (low fuel consumption) and excellent wet properties by compounding a diene rubber with silica, a silane coupling agent, and an organotin compd.
SOLUTION: This compsn. contains a diene rubber, silica, a silane coupling agent, and a compd. of the formula: RmSnY4-m (wherein R is an alkyl; Y is an alkylate; and (m) is an integer of 1-4), pref. dibutyltin dilaurate. Pref., dibutyltin dilaurate is compounded in an amt. not higher than that of the silane coupling agent. Pref., the amt. (A) of the silane coupling agent compounded and that (B) of silica compounded satisfy the relation: 0.02×B≤A≤0.2×B. The amt. of silica compounded, based on 100 pts.wt. diene rubber, is in the range of about 20-80 pts.wt.; however, 40-80 pts.wt. is pref. in terms of strengths, and 40-70 pts.wt., in terms of having a not too high hardness.
Inventors:
Yasuhisa Minagawa
Noriko Yagi
Kiyoshige Muraoka
Noriko Yagi
Kiyoshige Muraoka
Application Number:
JP35786997A
Publication Date:
May 09, 2007
Filing Date:
December 25, 1997
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C1/00; C08L21/00; C08K3/36; C08K5/54; C08K5/548; C08K5/57; (IPC1-7): C08L21/00; B60C1/00; C08K3/36; C08K5/54; C08K5/57
Domestic Patent References:
| JP10182885A | ||||
| JP10067887A | ||||
| JP11106512A | ||||
| JP7165991A | ||||
| JP53030649A | ||||
| JP63215701A | ||||
| JP62135548A |
Attorney, Agent or Firm:
Sota Asahina
Kei Saki
Kei Saki
Previous Patent: FRAME BODY WITH FITTINGS AND ATTACHING METHOD FOR FITTINGS
Next Patent: SEAL MATERIAL FOR PREVENTING LEAKAGE OF GRANULE
Next Patent: SEAL MATERIAL FOR PREVENTING LEAKAGE OF GRANULE