Diacetylene film sensitized with photoinitiator and applications of the film
US9797771B2 · kind B2 · utility
1Cited by
2References
5Claims
0Family size
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Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2449/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for improving sensitivity of a film base, coated with a dispersion of a normally crystalline polyacetylenic compound in a non-solvating liquid which is dried on the film surface, to particular photon energy band, specifically, long wavelength UV; the polyacetylenic compound preferably having at least two conjugated acetylenic linkages and containing from 12 to 60 carbon atoms. The sensitization of the film to long wavelength UV is achieved via the addition of photoinitiator(s) capable of absorbing UV energy and converting it to free radicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.