Stock material or miscellaneous articles – Composite – Of polycarbonate
Patent
1974-08-28
1977-03-22
Husack, Ralph
Stock material or miscellaneous articles
Composite
Of polycarbonate
96 67, 96 83, 96 87A, 961142, 961145, 106125, 427414, 428474, 428477, 428480, 428523, 428532, 428537, G03C 176, C09D 304
Patent
active
040136965
ABSTRACT:
A combination of improved coatability of a coating composition onto an anionic surfactant-containing contiguous layer of a radiation-sensitive or non-radiation sensitive film element, plus better control of static electricity on the resulting coated film element, especially on a radiation sensitive photographic element, results from using a coating composition containing a surfactant mixture of (a) a certain type of cationic perfluorinated alkyl surfactant, such as perfluorooctylsulfonamido-(N-propyl-3-N,N,N-trimethyl) ammonium iodide, with (b) a certain type of nonionic alkylphenoxypoly(propylene oxide) surfactant, such as para-isononylphenoxy decaglycidol, as a coating aid in the application of fluid coatings, preferably by simultaneous coating techniques, to form multiple layers in an element during the making of the element. The presence of a hydrophilic polymeric binder, such as gelatin, in the coating composition is desirable.
REFERENCES:
patent: 3775126 (1973-11-01), Babbitt et al.
patent: 3811889 (1974-03-01), Endou et al.
Babbitt John M.
Houle James F.
Eastman Kodak Company
Husack Ralph
Milan E. W.
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