Coatings and films derived from clay/wax nanocomposites

Details Coatings and films derived from clay/wax nanocomposites Coatings and films derived from clay/wax nanocomposites

2006-11-14

2006-11-14

Yoon, Tae H. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S275000, C524S277000, C524S185000, C524S445000, C524S447000, C977S726000

Reexamination Certificate

active

07135508

ABSTRACT:
The invention provides methods for making clay/wax nanocomposites and coatings and films of same with improved chemical resistance and gas barrier properties. The invention further provides methods for making and using emulsions of such clay/wax nanocomposites. Typically, an organophillic clay is combined with a wax or wax/polymer blend such that the cohesion energy of the clay matches that of the wax or wax/polymer blend. Suitable organophilic clays include mica and phyllosilicates that have been surface-treated with edge or edge and surface modifying agents. The resulting nanocomposites have applications as industrial coatings and in protective packaging.

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