Triacetyl cellulose film with reduced water transmission property
AssigneeEastman Kodak Company
InventorsWilliam J. Gamble, Joseph L. Lippert
Life of this patent
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Abstract
Disclosed is a triacetyl cellulose film comprising (a) an unsubstituted triphenyl phosphate compound and (b) a lower alkyl-substituted triphenyl phosphate ester compound. Such a film exhibits a reduced rate of water vapor transmission.
Claims25
A triacetyl cellulose film comprising (a) an unsubstituted triphenyl phosphate compound and (b) a lower alkyl-substituted triphenyl phosphate ester compound.
A triacetylcellulose film comprising a combination plasticizer containing (a) at least 6 wt % of the film of an unsubstituted triphenyl phosphate compound and (b) at least 1% of the film of a fully esterified lower alkyl-substituted triphenyl phosphate ester compound.
Dependencies are inferred from the claim text.