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US 2018/0223056 A1Published application
Polyurea-Urethane Cord Treatment for Power Transmission Belt and Belt
AssigneeThe Gates Corporation
InventorsJoseph R. Duke, JR., John Graeme Knox
Life of this patent
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Abstract
A belt with a tensile cord embedded in an elastomeric body, having a polyurea-urethane adhesive composition impregnating the cord and coating the fibers. The composition is reaction product of a polyurethane prepolymer and a diamine curative. The prepolymer is a reaction product of a compact, symmetric diisocyanate and a polyester, polyether, or polycarbonate polyol. The belt body may be of cast polyurethane, vulcanized rubber, or thermoplastic elastomer. The cord may have an adhesive overcoat.
Claims19
A power transmission belt comprising:
- an elastomeric body, and a tensile cord embedded in the elastomeric body;
- with the tensile cord impregnated with a polyurea-urethane composition different from said elastomeric body, said tensile cord comprising the polyurea reaction product of:
- a polyurethane prepolymer;
- and
- a curative selected from the group consisting of diamines and water.
2 more elements
Dependencies are inferred from the claim text.