Tack-free polyurethane flexible foam
US10723828B2 · kind B2 · utility
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4References
11Claims
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Key dates
| Filing date | May 2, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2205/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described herein is a process for producing flexible polyurethane foams, in which (a) polyisocyanate prepolymer, is mixed with (b) polymeric compounds having groups reactive toward isocyanates, (c) optionally chain extenders and/or crosslinkers, (d) catalyst, (e) blowing agent comprising water and (f) optionally additives to give a reaction mixture and reacted to give a flexible polyurethane foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.