Photo polymerization process
Abstract
Abstract A PROCESS FOR PHOTOPOLYMERIZING A NORMALLY LIQUID TO NORMALLY SOLID MONOMER HAVING THE GROUPING CH2=C< WHICH COMPRISES SUBJECTING THE MONOMER TO ELECTROMAGNETIC RADIATION SO AS TO PRODUCE EXPOSED AND UNEXPOSED AREAS IN THE PRESENCE OF A CATALYST COMPRISING A COMPOUND OF THE FORMULA: <(-)(-A)(-B)(-C) WHEREIN A REPRESENTS AN OXO RADICAL, B REPRESENTS A DIAZO RADICAL, C REPRESENTS A SULFONIC ACID RADICAL AND THE CIRCLE REPRESENTS A RING SYSTEM SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANE, CYCLOHEXENE, CYCLOHEXADIENE, NAPHTHALENE, DECAHYDRONAPHTHALENE, OCTAHYDRONAPHTHALENE AND HEXAHYDRONAPHTHALENE; THEREAFTER CONTACTING THE EXPOSED MONOMER WITH A REDUCING AGENT SO AS TO POLYMERIZE THE MONOMER IN THE EXPOSED AREAS AND SUBSEQUENTLY REMOVING THE MATERIAL FROM THE UNEXPOSED AREAS SO AS TO PRODUCE A COLORED NEGATIVE IMAGE CORRESPONDING TO THE PHOTOPOLYMERIZED POLYMER.
Inventors
- 👤 Edward Cerwinka
Bibliographic Details
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