Process for preparing polyurethanes with 4,4'-(.omega.-hydroxyalkoxy)-biphenyls
US5264519A · kind A · utility
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5References
3Claims
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Key dates
| Filing date | Dec 9, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Dec 9, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention discloses new compounds of the formula 4,4'-di-(.omega.-hydroxyalkoxy)-biphenyl), wherein the alkoxy group contains from 8 to 13 carbon atoms. The use of the new compounds, in particular the compound 4,4' -di-(11-hydroxyundecanoxy)-biphenyl, in the synthesis of segmented polyurethanes, results in products having a particularly advantageous profile of properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.