Chip resistant tire

Details Chip resistant tire Chip resistant tire

B - Operations, Transporting

29

D

B29D 30/06 (2006.01) B60C 1/00 (2006.01) B60C 9/18 (2006.01) B60C 9/20 (2006.01) B60C 9/30 (2006.01) B60C 13/00 (2006.01)

Patent

CA 2298765

A chip resistant pneumatic tire (10) is provided. The tire has an organic reinforced overlay (22,22b) embedded in or under its tread (18) and/or sidewall (20), and is used in off the road applications such as mining. Low sulfur rubber (17) is used to coat the organic reinforcement (11), and it is shown that such rubber (17) is more compatible with rubber used to form the tread (18) or sidewall (20), which together with the organic reinforcement (11), helps prevent chipping and chunking in the tread (18) and sidewall (20). The illustrated organic filaments or cords (11) have a round cross section and are at least 2000 denier (2200 dTex) and have a tenacity of at least 3.5 g/denier (31 cN/Tex), an initial modulus of at least 20 g/denier (177 cN/Tex), an elongation at break of at least 10%, and a shrinkage of at most 10%.

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