Patent ID: 6022924
Filing Date: 2000-02-08
Classification: C08J,C08L,G03C,Y10T

Abstract:
A packaging material for a photographic photosensitive material which comprises a color master batch resin composition comprising:(a) 100 parts by weight of a resin composition consisting of 40 to 99.5 parts by weight of a polystyrene resin and/or a polyolefin resin and 0.5 to 60 parts by weight of carbon black;(b) 0.01 to 10 parts by weight of a metal salt of a partially saponified fatty acid ester having 20 to 50 carbon atom and/or a metal salt of a fatty acid having 15 to 50 carbon atoms;(c) 0 to 1 part by weight of an antioxidant; and(d) 0 to 40 parts by weight of a low molecular weight polyolefin resin,wherein said carbon black is coated with an ester of an aliphatic monocarboxylic acid having a number of carbon atoms of 20 to 40 and a monovalent aliphatic alcohol having a number of carbon atoms of 20 to 40 in an amount of 0.001 to 2 wt. % based on the weight of the packaging material for a photographic photosensitive material.