Thermoplastic linear aromatic polyetherdiketones and process for obtaining same
US5003028A · kind A · utility
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16Claims
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Key dates
| Filing date | May 8, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/4012
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic linear aromatic polyetherdiketones containing repeating units of formula: ##STR1## wherein R is an arylene radical containing from 1 to 3 aromatic rings directly joined among them, or condensed, or joined by one or more of the following difunctional groups: EQU --O--, --CO--; --CO--CO--, --SO.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.