Subbing polyester support bases and photographic film...

Details Subbing polyester support bases and photographic film... Subbing polyester support bases and photographic film...

G - Physics

03

C

117/130, 96/210

G03C 1/93 (2006.01)

Patent

CA 1191746

Abstract Of Disclosure The present invention relates to an improved photographic polyester support base coated with a first hydrophobic subbing layer and a second hydrophilic sub- bing layer, the improvement consisting of having said se cond subbing layer derived from a hardener containing, aqueous coating composition including (1) gelatin, (2) a vinyl addition polymer compound and (3) a low viscosity highly sulfonated water soluble polyacetal compound derived from the reaction of an aldehyde sulfonic acid compound with a polyvinyl alcohol compound, the relative quantities of said gelatin and vinyl addition polymer compound to the polyacetal compound being such as to provide good adhe- sion characteristics without any significant loss in anti- static properties.

403616

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