Urethane adhesive cord treatment for power transmission belt and belt
US11548990B2 · kind B2 · utility
1Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Oct 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249937
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A belt with a tensile cord embedded in an elastomeric body, having an adhesive composition impregnating the cord and coating the fibers. The adhesive composition is the reaction product of a polyisocyanate and a polyol, or a polyurethane prepolymer derived therefrom, and a polyamine curative and optionally additional polyol, and with optionally added plasticizer. At least one of the polyisocyanate, the prepolymer, and the polyamine are blocked with a blocking agent. The belt body may be of cast polyurethane, vulcanized rubber, or thermoplastic elastomer. The cord may have an adhesive overcoat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.