Photographic polypropylene coated paper support with corona disc

Details Photographic polypropylene coated paper support with corona disc Photographic polypropylene coated paper support with corona disc

1978-10-04

1980-09-02

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430937, 430538, G03C 187

Patent

active

042204712

ABSTRACT:
A photographic material comprising a support having on the surface a polypropylene resin component and a hydrophilic colloidal layer on the top surface which are firmly adhered together, is produced by subjecting the support having on the surface a polypropylene resin component to corona discharge, applying thereto a subbing layer comprising (a) at least one water-dispersed polymer latex selected from butadiene-acrylic ester copolymers, polyvinyl chloride and polystyrene, (b) a compound having an ethyleneimino group such as that capable of hardening a colloidal gelatin or casein, and (c) a water-soluble polymer, and providing a hydrophilic protective colloidal layer on said subbing layer.

REFERENCES:
patent: 3582338 (1971-06-01), Yost et al.
patent: 3607345 (1971-09-01), Thomas et al.
patent: 3676189 (1972-07-01), Woodward et al.
patent: 3711284 (1973-01-01), Van Paasschen et al.
patent: 3712812 (1973-01-01), Van Paasschen et al.
patent: 3793029 (1974-02-01), Parkev
patent: 3874880 (1975-04-01), Venor et al.
patent: 3888679 (1975-06-01), Komatsu et al.
patent: 4135932 (1979-01-01), Mann

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