Elastomeric polyurethanes with improved properties based on crystallizable polyols in combination with low monol polyoxpropylene polyols
US5648447A · kind A · utility
25Cited by
4References
43Claims
0Family size
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Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2250/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane elastomers of improved elongation, tensile strength and other physical properties are prepared from a polyol component containing a crystallizable polyol and from 5 to 35 equivalent percent of a low monol polyoxypropylene polyol by one-shot, quasiprepolymer, and preferably, by prepolymer techniques involving chain extension with an aliphatic diol or aromatic amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.