Photographic element with novel subbing layer
AssigneeMinnesota Mining and Manufacturing Company
InventorsWim J. Van Ooij, David R. Boston, Edward J. Woo
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Abstract
The use of a gelled network of inorganic oxide particles on the polymeric surface of a substrate provides a subbing layer having the potential for antistatic properties, antihalation properties, and good coatability.
Claims15
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layer of an ambifunctional silane represented by the formula
- (Q).sub.n --R--Si(OR.sup.1).sub.3
- wherein
- R.sup.1 is alkyl or aryl,
- R is the organic group of up to 10 carbon atoms having n+1 external valences,
- n is 1, or 2, and
- Q is an amino or epoxy moiety reactive with gelatin hardeners or gelatin.
A synthetic polymeric film having adhered to at least one surface thereof a layer of a continuous gelled network of inorganic particles comprising silica particles and 0.1 to 20% of said layer of an ambifunctional silane comprising gammaglycidoxypropyltrimethoxysilane.
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layers of an ambifunctional silane represented by the formula:
- (Q).sub.n --R--Si(OR.sup.1).sub.3
- wherein
- R.sup.1 is alkyl of 1 to 4 carbon atoms,
- R is a bridging moiety selected from the group consisting of alkylene, arylene, alkarylene, and aralkylene of up to 10 carbon atoms,
- n is 1, and
- Q is amino or epoxy.
Dependencies are inferred from the claim text.