Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
1999-11-04
2002-03-26
Dixon, Merrick (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S361000, C428S357000, C428S368000, C428S208000, C428S492000, C428S297400
Reexamination Certificate
active
06361860
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to bonding high modulus composites to rubber utilizing a primer. More specifically, the present invention relates to the utilization of composites which have a very high modulus of elasticity and are adhered to the body of a tire to provide a no-flat tire.
BACKGROUND OF THE INVENTION
Heretofore, polyphenylene sulfide-high modulus fiber composites were generally not bonded to rubber. In the field of tires, various types of tire cords such as polyaramide, polyester, nylon, and the like was adhered to rubber utilizing various adhesives, see U.S. Pat. Nos. 4,711,286, 5,082,713, 5,201,971, 5,291,930, 5,323,829, 5,413,160, 5,513,683, 5,558,144, and 5,576,104.
SUMMARY OF THE INVENTION
High modulus composites contain high strength fibers such as carbon, graphite, or boron, which are bonded together by a high temperature binder such as a polyphenylene sulfide or a polyimide. Alternatively, high melting point polyurethane or polyurea binders can be utilized. The composites are bonded to various rubbers such as natural rubber, polybutadiene or styrene-butadiene rubber through the use of various primers. The composites have a very high modulus of elasticity (Young's modulus) and accordingly can be bonded to a rubber wherever a stiff reinforcement material is desired for the rubber.
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Bridgestone Corporation
Dixon Merrick
Hornickel John H.
Hudak Daniel J.
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