充气轮胎
By using hydrogenated styrene-butadiene copolymer in pneumatic tires to improve the adhesion strength between the tread surface and the tread base, the problem of reduced tensile strength of diene rubber during ozone degradation was solved, thereby improving the tire's durability and ozone resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUMITOMO RUBBER INDUSTRIES LTD
- Filing Date
- 2020-01-07
- Publication Date
- 2026-07-17
AI Technical Summary
Diene rubber in conventional rubber compositions exhibits reduced tensile strength during ozone degradation, leading to decreased adhesion strength between the tread surface and the tread base, thus affecting tire durability and ozone resistance.
Hydrogenated copolymers containing aromatic vinyl and conjugated diene portions, especially hydrogenated styrene-butadiene copolymers, are used in tread rubber compositions. By controlling the degree of hydrogenation and modification treatment, the adhesive strength and heat aging resistance are improved, ensuring high adhesive strength between the tread and the tread base.
It improves the durability and ozone resistance of pneumatic tires, ensures high adhesion strength between the tread surface and the tread base, prevents interface separation, and extends tire life.
Smart Images
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