Preparation of polyurethane from a blend of polyether polyols and a graft polyol which is the product of polymerization of an ethylenically unsaturated monomer with a polyol which contains unsaturation and oxyalkylene moieties
US4261877A · kind A · utility
7Cited by
1References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 6, 1979 |
| Grant date | Apr 14, 1981 |
| Priority date | — |
| Expiry date | Mar 6, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/635
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
By using a polyether polyol grafted with a suitable proportion of a suitable vinyl-type monomer with the use of a free-radical catalyst, it is possible to obtain filled or unfilled castings of thermosetting polyurethane which has excellent physical properties as well as good processing characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.