Light-sensitive composition

TL;DR: In this article, a light-sensitive N-nitroso compound is defined as a compound having a photopolymerizable ethylenic double-bond in its molecule.

Abstract: A light-sensitive composition comprising of 1. an N-nitroso compound having the general formula ##STR1## wherein R 1 and R 2 , which may be the same or different, are each a member selected from the group consisting of a monovalent hydrocarbon radical, a monovalent hydrocarbon radical attached to the nitrogen atom of amine through --SO 2 --, and a group of the formula ##STR2## where X is a divalent hydrocarbon radical, and R 3 is a monovalent hydrocarbon radical, which may be the same as R 1 or different therefrom, which R 1 , R 2 and R 3 may have substituent groups, and R 1 and R 2 may together form, directly or by being bonded through an oxygen atom or nitrogen atom, a ring; 2. a photopolymerization initiator; and 3. a compound having a photopolymerizable ethylenic double bond in its molecule.