Process for producing encapsulated photosensitive composition by altering the concentration of the internal phase during encapsulation
US5196287A · kind A · utility
1Cited by
9References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1990 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Aug 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing photosensitive microcapsules having an extended dynamic range and the microcapsules produced thereby are disclosed; the process includes: PA0 (a) providing an emulsion of a multiplicity of droplets of an internal phase in a continuous phase; said internal phase including a photohardenable or photosoftenable composition and an image-forming agent wherein the composition of said internal phase incrementally or continuously varies; and PA0 (b) forming a wall around said droplets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.