Multi-part polyurethane compositions, articles thereof, and method of making
US10590318B2 · kind B2 · utility
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37References
19Claims
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Key dates
| Filing date | Nov 24, 2015 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Dec 20, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-part polyurethane composition is composed of a first part comprising a polyurethane prepolymer composition and a second part comprising a polyol having a hydroxyl functionality of 4 to 6, and a desiccant. The composition further comprises a plasticizer, wherein the plasticizer can be present in any one or more of the parts. A polyurethane is formed by mixing and curing the composition. The composition can be used as an adhesive for separatory devices, in particular for potting hollow fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.