Photographic films

Details Photographic films Photographic films

1977-03-31

1978-01-17

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

961142, G03C 198, G03C 102

Patent

active

040690539

ABSTRACT:
A photographic film comprising a plastic support having first and second layers therein in that order, the first layer comprising a cellulose acetate together with a matting agent composed mainly of silicon dioxide of less than 1 .mu. in particle size, the second layer comprising a phosphoric acid ester, or an amine salt thereof of a C.sub.8 to C.sub.22 -higher alkyl alcohol. A light-sensitive emulsion layer is carried on the other side of the support.

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patent: 3514291 (1970-05-01), Vanpoecke et al.
patent: 3525621 (1970-08-01), Miller
patent: 3630740 (1971-12-01), Victor et al.
patent: 3635714 (1972-01-01), Oshibuchi et al.
patent: 3656950 (1972-04-01), Bent et al.
patent: 3658573 (1972-04-01), Guestaux et al.
patent: 3775124 (1973-11-01), Shirasu et al.

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