Wearable rubber parts for fluid handling services including a polyurethane inner layer
US10066771B2 · kind B2 · utility
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34References
28Claims
0Family size
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Key dates
| Filing date | Jan 8, 2015 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Feb 17, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/0337
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Wearable rubber parts for fluid handling systems include a four layer structure, wherein the inner most layer of the four layer structure is a polyurethane layer. The polyurethane can be millable polyurethane. The polyurethane used in the inner most layer can be produced by reacting diisolcyanate with a polyester and/or polyether polyols and a chain extender. The wearable rubber part can be an expansion joint, a pinch valve, or a hose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.