Polyurethane and polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties
US6420445B1 · kind B1 · utility
4Cited by
31References
28Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Elastomers with improved physical properties, particularly hardness, resilience, tear strength, and compression set, may be prepared by the chain extension or moisture cure of isocyanate-terminated prepolymers prepared from a polyol component comprising a high molecular weight, low unsaturation polyoxypropylene diol and a low molecular weight diol. The elastomers are useful for applications such as rollers and other applications for which these physical properties are important.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.