Imagewise exposing and heating a microimaging film containing an organo diselenide, a tertiary phosphine or phosphite and an organic peroxide
US4050937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Dec 13, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/734
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an imaging method which comprises: PA1 A. providing a film of an organic polymer as matrix material having uniformly dispersed therein: PA1 I. a photochemically reactive organo diselenide characterized by the formula: EQU R.sub.1 --Se--Se--R.sub.2 wherein R.sub.1 and R.sub.2 are aralkyl or alkyl hydrocarbon moieties; PA1 Ii. a tertiary phosphine or phosphite characterized by the formula: ##STR1## wherein each n is 0 in the case of phosphine and 1 in the case of a phosphite and R.sub.3, R.sub.4 and R.sub.5 are independently substituted or unsubstituted aryl hydrocarbon moieties; and PA1 Iii. an organic peroxide characterized by the formula: ##STR2## wherein R.sub.6 and R.sub.7 are aryl or substituted aryl; B. EXPOSING THE FILM IN AN IMAGEWISE MANNER TO ULTRAVIOLET RADIATION TO FORM AN IMAGE THEREIN; AND PA1 C. heating the exposed film to a temperature of at least about 100.degree. C for a time sufficient to enhance the image contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.