B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 1/00 (2006.01) B29D 30/72 (2006.01) B60C 13/00 (2006.01) C08F 232/08 (2006.01) C08K 3/00 (2006.01) C08L 23/04 (2006.01) C08L 23/16 (2006.01)
Patent
CA 2095504
ABSTRACT OF THE DISCLOSURE A mineral-filled white sidewall compound (25) prepared from a thermoplastic polymeric composition of matter comprises (A) 100 parts by weight of a polymer blend comprising (1) from at least about 10 to 95 parts by weight of polyolefins having from about 0.5 to about 13 percent by weight crystallinity, the polyolefins being prepared from monomers having at least 2 carbon atoms and mixtures thereof; and (2) from about 5 to 90 parts by weight of a thermoplastic crystallinity enhancing polymeric additive; (B) from about 20 to 200 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing fillers and mixtures thereof per 100 parts of the polymer blend; and (C) from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; the white sidewall compound being adherable to a conventional cured tire black sidewall (21) without the use of solvents or water-based adhesives. A method for applying a mineral-filled thermoplastic white sidewall compound to conventionally cured tire black sidewalls comprises the steps of providing a tire (10) at least partially cured and having a black sidewall (21); applying a mineral-filled thermoplastic white sidewall compound to the tire black sidewall to form a white sidewall (25); and bonding the white sidewall to the tire sidewall under sufficient pressure and heat to provide acceptable adhesion without the use of a solvent or a water based adhesive. The present invention also provides a tire (10) having a circumferentially grooved black sidewall area (21) and a mineral-filled white sidewall compound (25) adhered thereto. 9201013 FIR.P.US0068
Davis James A.
Valaitis Joseph K.
Bridgestone Corporation
Swabey Ogilvy Renault
LandOfFree
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