Process for preparing thermosettable polyurethane which comprises blending a polyisocyanate with a first thermoplastic resin and then blending with a second thermoplastic resin which is a polyurethane
US4347338A · kind A · utility
45Cited by
1References
5Claims
0Family size
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Key dates
| Filing date | May 19, 1981 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | May 19, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermosettable polyurethane product is prepared by blending a compound having two or more terminal isocyanate groups to a thermoplastic resin which is inert to said isocyanate group to prepare an isocyanate compound batch, and further blending the isocyanate compound batch to a thermoplastic polyurethane resin and fabricating the resulting mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.