Photopolymerizable polymers containing free acid or acid anhydride groups reacted with glycidyl acrylate or glycidyl methacrylate

Abstract

Abstract 1,153,833. Photo-polymerizable photographic plates. E.I. DU PONT DE NEMOURS & CO. March 9, 1967 [March 14, 1966], No. 11091/67. Heading G2C. [Also in Division C3] Plates suitable for use in the production of photo-reliefs comprise a support carrying a layer of a composition comprising a cross-linkable polymeric compound, a plasticizer therefor and a photo-initiator, said polymeric compound comprising recurring units derived from vinyl or vinylidene monomers having an extralinear radical of the formula CH 2 = CR-COOCH 2 CH (OH) CH 2 OOC- or CH 2 = CR-COOCH 2 CHR-OOC- (wherein each R is independently H or methyl) attached to an intralinear unit, and an extralinear radical Y attached to a different intralinear unit, Y being either a carboxyl group or a group of the formula HOOC-Q-COO CH 2 CH(OH) CH 2 OOC- (wherein Q is C 1 -C 4 alkylene or arylene). (For details of the preferred polymers and of their preparation see Division C3). After imagewise exposure to actinic light, the relief image can be developed by bathing the plate in a liquid which dissolved the unexposed polymer, but not the exposed (crosslinked) polymer. Suitable supports include copper-clad fibre glass, and metal (e.g. copper, zinc, steel or aluminium plates). 2-t-Butylanthraquinone is illustrated as photo-initiator; phenazine, oxazine and quinone dyes may also be used. Plasticizers specified are triethylene glycol diacetate or dipropionate, dibenzyl sebacate, diphenyl phosphate and dibutyl phthalate. The plates are useful in the graphic arts field, e.g. letterpress, planographic or intaglio printing, copying, decorating and printed circuits.

Inventors

• 👤 Jack Richard Celeste

Bibliographic Details