Recovery of photographic film base

Details Recovery of photographic film base Recovery of photographic film base

1995-01-12

1996-03-19

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Combined

536 78, C08B 326, G03C 1124

Patent

active

055003281

ABSTRACT:
A process is described for recovering cellulose triacetate from scrap photographic film, using aqueous solutions free of organic solvents, by the steps of:

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patent: 1930133 (1933-10-01), Reid
patent: 2688614 (1954-09-01), Fox
patent: 3546149 (1970-12-01), Fabian
patent: 3956088 (1976-05-01), Fassell et al.
Research Disclosure, Oct. 1974, Item No. 12629, published by Kenneth Mason Publications, Ltd., Dudley Annex, 12a North Street, Emsworth, Hampshire P010 7DQ, England.
Research Disclosure, Aug. 1980, Item No. 19634, publisehd by Kenneth Mason Publications, Ltd., Dudley Annex, 12a North Street, Emsworth, Hampshire P010 7DQ, England.

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