Photomechanically active copolyimides derived from an azobenzenediamine, a rigid dianhydride, and a flexible dianhydride
US9834644B1 · kind B1 · utility
1Cited by
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16Claims
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Key dates
| Filing date | May 28, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1096
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions of azobenzene-containing, photomechanically active, copoly(amic acids) and linear copolyimides including an azobenzenediamine, a rigid dianhydride, and a flexible dianhydride are provided; and methods of making the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.