Photosensitive and degradable polyoxymethylene polymers and thei

Details Photosensitive and degradable polyoxymethylene polymers and thei Photosensitive and degradable polyoxymethylene polymers and thei

1975-01-30

1976-11-09

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

96 351, 260 458A, 260 459P, 260 67A, 2603405, C08G 230

Patent

active

039910334

ABSTRACT:
Polyoxymethylene polymers having thermally stable but photochemically sensitive and degradable random linkages ##EQU1## in the chain where n is 0 or 1, R.sup.3 and R.sup.4 are H or lower alkyl and at least one of R.sup.1 and R.sup.2 is a phenyl group with an orthonitro substituent are made by intercalating a polyoxymethylene polymer with the appropriate dioxane or dioxolane. By exposing a film of the polymer to light through a transparency followed by heating or a heated treatment with base, a relief image of the copy on the transparency is obtained.

REFERENCES:
patent: 3655378 (1972-04-01), Contois et al.
patent: 3842038 (1974-10-01), Lohr et al.

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