Deflated tire lubricant

Details Deflated tire lubricant Deflated tire lubricant

C - Chemistry, Metallurgy

10

M

152/75.1, 152/78

C10M 107/00 (2006.01) B60C 17/10 (2006.01)

Patent

CA 1098432

Abstract of the Disclosure To facilitate relative movement between the internal surface of a pneumatic tire which come into contact when the tire is run in a deflated condition, the interior of the tire is coated with a lubricant which does not flow at normal tire operating temp- eratures. The matrix of the lubricant is a polyester, polyurea or polyurethane which does not begin to flow until the tire reaches a temperature of from 65°C to 150°C. If the lubricant were allowed to flow at operating temperature, it would adversely effect the balance and performance of the tire. The high tire temperature indicates that the tire is flat and reduces the viscosity of (liquifies) the lubricant causing it to flow. the lubricant then reduces rubbing friction and temperature rise which would otherwise occur by rubber-to-rubber contact. The lubricant tire can be run flat to a service station.

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