Color masterbatch resin composition for packaging material for p

Details Color masterbatch resin composition for packaging material for p Color masterbatch resin composition for packaging material for p

1997-03-06

1998-09-29

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523215, 523351, 524318, 524399, 524400, 524577, 524578, 525241, 428 357, C08L 5104, C08L 5300

Patent

active

058146970

ABSTRACT:
A color masterbach resin composition for a packaging material for a photographic photosensitive material which does not adversely affect photographic properties of the photographic photosensitive material, comprising a light-shielding material in a concentration thrice as much as or more that of the packaging material for a photographic photosensitive material, and a thermoplastic resin of which 50 wt. % or more is the same type as a thermoplastic resin occupying 50 wt. % or more of the total thermoplastic resin composing the packaging material for a photographic photosensitive material, production thereof, a packaging material for a photographic photosensitive material formed of a color masterbatch resin composition, and production thereof. In the color masterbatch resin composition and the packaging material for a photographic photosensitive material of the invention, light-shielding material is dispersed uniformly by employing a special resin composition, and thereby, adverse affects upon photographic hpotosensitive materials are prevented, and favorable appearance can be ensured. Moreover, fog with time, abnormal sensitivity, abrasion, pressure marks, etc. can be prevented.

REFERENCES:
patent: 3413249 (1968-11-01), Luftglass
patent: 4788232 (1988-11-01), Needham
patent: 4880857 (1989-11-01), Mori et al.
patent: 5001171 (1991-03-01), Bohm et al.
patent: 5036132 (1991-07-01), Coran
patent: 5543270 (1996-08-01), Akao et al.
West et al., Textbook of Biochemistry, Macmillan Co., NY, NY, 1966, pp. 126-127.

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