Polymeric n-carbonyl sulfonamides in photopolymerizable compositions and process for preparation

Abstract

Abstract This invention relates to novel polymers and to a method of producing the same. The polymers are of reduced specific viscosity between 0.05 and 3.0, preferably between 0.2 and 1.0 dl/g., measured at 25* C. using a 1 percent solution in dioxane, contain substituted N-carbonyl sulfonyl groups in their side chains, and are composed of statistically distributed recurrent structural units OF Formula I'' and/or Formula II'' and/or Formula III'' wherein R is a saturated aliphatic alkyl or alkoxy group each with one to six carbon atoms which may be substituted by one to three halogen atoms, or a cycloaliphatic alkyl group, or an aryl or aryloxy group each with six or 10 carbon atoms which may be substituted up to 3 times by halogen atoms and/or alkyl or alkoxy groups with one to six carbon atoms, R'' is a hydrogen atom or a methyl group, X is an oxygen atom or an imino group, A is a phenylene group or an alkylene group with one to four carbon atoms, N IS AN INTEGER FROM 1 TO 4, AND M IS 1, OR MAY BE 0 WHEN X is an imino group, AND WHICH MAY FURTHER COMPRISE, IN A STATISTICAL DISTRIBUTION, RECURRENT STRUCTURAL UNITS OF THE TYPE WHEREIN A. R1 is a hydrogen atom or a methyl group, R2 is a hydrogen atom, and R3 is a nitrile group, a phenyl group, an amino-carboxyl group, an alkyl carboxyl group with two to 12 carbon atoms, or an acyloxy group with two to 12 carbon atoms, or B. R1 is an alkyl carboxymethyl group with three to 13 carbon atoms, R2 is a hydrogen atom, and R3 is an alkyl carboxyl group with two to 12 carbon atoms, or C. R1 is a hydrogen atom, and R2 and R3 are both alkyl carboxyl groups with two to 12 carbon atoms.

Inventors

• 👤 K Klupfel
• 👤 W Luders
• 👤 H Steppan

Bibliographic Details