B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/81
B60C 11/03 (2006.01) B60C 1/00 (2006.01) B60C 11/00 (2006.01)
Patent
CA 2003584
ABSTRACT AIRCRAFT TYRES An aircraft tyre comprising an annular casing (1) and a trend region characterised in that the tread region (4) comprises a ground contacting layer (5) of wear resistant tread rubber compound having a hardness greater than 55 I.R.H.D., a resilience of 60 -75% at 50 degrees centigrade measure using the Dunlop pendulum and high abrasion resistance being at least 120% measured as defined herein and a sub tread layer (6) of damage resistant rubber compound having a hardness greater than 55 I R H D a resilience of 60 - 75% at 50 degrees centigrade measured using the Dunlop pendulum and a tear strength of 260 - 300 Newton tested accorded to ASTM test No. D624 using Die B. The resultant tyre has good resistance to casing damage, chunking out of the tread and improved tread wear resistance.
Gowling Lafleur Henderson Llp
Sumitomo Rubber Industries Limited
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