Verfahren zur Herstellung vorsensibilisierter Diazo-Positivmatrizen mit verbesserten Eigenschaften fuer den Offsetdruck und das dadurch erhaltene Verfahrensprodukt

摘要

1,166,065. Cross-linked polymers. FERRANIA S.p.A. 1 Nov., 1966 [2 Nov., 1965; 18 Oct., 1966], No. 49005/66. Heading C3P. [Also in Division G2] Alkali-insoluble but alkali-permeable polymers are produced by copolymerizing vinyl acetate with vinyl monophthalate, acrylic acid, methacrylic acid or crotonic acid or copolymerizing ethyl acrylate with acrylic acid or acrylonitrile with methacrylic acid so that there are up to 10% of carboxylic acid groups and then cross-linking with polyglycidyl methacrylate or copolymers thereof, 2,4 or 2,6 tolyenedi - isocyanate, hexamethylene di - isocyanate, diphenyl - or diphenylmethane - 4,41 - diisocyanate, the condensate of 1,1,1-trimethylolpropane with 2,4 tolyldiisocyanate, p,p1p11-triphenyl methane triisocyanate, polyvinyl isocyanate, tris - (1 - aziridinyl) - phosphine oxide, tris - (1 - (2 - methyl) - aziridinyl)- phosphine oxide, s-triethylene imino triazine and acryloyl ethylene-imine.