Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on...
Reexamination Certificate
2007-11-29
2010-11-02
Siconolfi, Robert A (Department: 3657)
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
C474S237000, C474S263000, C474S264000, C474S266000, C057S237000, C428S167000, C428S295100, C428S373000, C428S375000
Reexamination Certificate
active
07824284
ABSTRACT:
A power transmission belt incorporating an adhesive treatment system and method for bonding fiber to rubber which includes an optional primer coat based on a low-molecular-weight isocyanate, followed by an overcoat including: (a) a prepolymer based on an isocyanate-terminated diene oligomer, and optionally (b) a low-molecular-weight isocyanate, and/or (c) a thermoplastic urethane comprising the reaction product of the same prepolymer with MDI and EHD. A polyester, aramid, or carbon fiber tensile cord for rubber reinforcement may be treated with the primer coat and the overcoat. A power transmission belt or other dynamic rubber product having ethylene-alpha-olefin elastomer as the primary rubber constituent may be reinforced by the tensile cord.
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Aung San
Dunlap, Esq. P. N.
Siconolfi Robert A
The Gates Corporation
Thurnau, Esq. J. A.
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