Polyurethane belt with improved hydrolysis resistance
US12378351B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Apr 3, 2024 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 3, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G5/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A belt for power transmission or transport comprising a polyurethane belt body, wherein the polyurethane of the belt body is the reaction product of a urethane prepolymer and a diamine chain extender, and the urethane prepolymer is based on a polyether and a linear aliphatic diisocyanate. The belt has excellent hydrolysis resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.