发明公开
- 专利标题: Pneumatic tyre
- 专利标题(中): Luftreifen
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申请号: EP99304818.0申请日: 1999-06-18
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公开(公告)号: EP0965465A2公开(公告)日: 1999-12-22
- 发明人: Ueyoko, Kiyoshi , Minagawa, Yasuhisa
- 申请人: SUMITOMO RUBBER INDUSTRIES LTD.
- 申请人地址: 6-9, Wakinohama-cho, 3-chome, Chuo-ku, Kobe-shi, Hyogo-ken JP
- 专利权人: SUMITOMO RUBBER INDUSTRIES LTD.
- 当前专利权人: SUMITOMO RUBBER INDUSTRIES LTD.
- 当前专利权人地址: 6-9, Wakinohama-cho, 3-chome, Chuo-ku, Kobe-shi, Hyogo-ken JP
- 代理机构: Stewart, Charles Geoffrey
- 优先权: JP17352698 19980619; JP8419399 19990326
- 主分类号: B60C15/06
- IPC分类号: B60C15/06
摘要:
A pneumatic tyre comprises a bead apex (5) disposed in each bead portion (4), and a carcass ply (6) extending between the bead portions and turned up in each bead portion (4) so as to wrap the bead apex (5) therein, the bead apex (5) being made of a hybrid material which is compounded from rubber, synthetic resin and short fibre at least. Preferably, the short fibre has an average diameter of 0.01 to 0.20 mm and an average length of 1.0 to 10.0 mm, and the proportion of the short fibre is 3 to 15 parts by weight with respect to 100 parts by weight of the rubber. The hybrid material has a 100% modulus of at least 10.0 MPa, a tensile strength of at least 10.0 MPa, a breaking elongation EB of at least 200 %, a Mooney viscosity of from 30 to 50 ML1+4, and a scorch time (t10) of at least 20 minutes. Optionally, a reinforcing cord layer (8) embedded in the bead apex (5) or a bead core (20) disposed immediately radially inside the bead apex is used.
公开/授权文献
- EP0965465B1 Pneumatic tyre 公开/授权日:2004-02-04
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