Hyperbranched poly(arylene-ether-ketone-imide) containing thermally reactive groups
US6639042B1 · kind B1 · utility
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5Claims
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Key dates
| Filing date | Feb 27, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 18, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G83/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New hyperbranched polymers having repeating units of the formula The polymer is prepared by the polymerization of the AB2 monomer N-{3,5-bis(4-hydroxybenzoyl)benzene}-4-fluoroisophthalimide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.