Oil-in-water emulsions containing hydropholeic starch
AssigneeChampion International Corporation
InventorsAnthony E. Vassiliades, Shrenik Shroff, Edward F. Nauman
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Abstract
A hydrophobic starch is utilized as an emulsifying agent in an oil-in-water emulsion wherein the oil is a volatile oil. The emulsion is used in the production of microcapsular coatings which impart opacity to substrates upon expulsion of the oil from the coating.
Claims17
An oil-in-water emulsion coating composition for imparting brightness and/or opacity to paper, boxboard, and the like, said emulsion having a finely dispersed volatile liquid oil phase and a continuous water phase containing a water binder and an emulsifier, wherein the improvement comprises utilizing a combination binder and emulsifier in said water phase consisting essentially of dispersed particles of a hydrophobic benzyl starch containing ether-linked benzyl groups, said dispersed particles being present in a binder-effective concentration at which said particles exhibit the characteristics of forming and stabilizing said emulsion.
A composition for use in the production of microcapsular opacifiers comprising an oil-in-water emulsion, said emulsion having a finely dispersed volatile liquid oil phase and a continuous water phase containing said emulsifier, said emulsifier consisting essentially of dispersed particles of a hydrophobic starch.
An oil-in-water emulsion coating composition for imparting brightness and/or opacity to paper, boxboard, and the like, said emulsion having a finely dispersed volatile liquid oil phase and a continuous water phase containing a water binder and an emulsifier, wherein the improvement comprises utilizing a combination binder and emulsifier in said water phase consisting essentially of dispersed particles of a hydrophobic starch, said dispersed particles being present in a binder-effective concentration at which said particles exhibit the characteristics of forming and stabilizing said emulsion.
Dependencies are inferred from the claim text.