Methods of recycling waste latex paint
AssigneeImaflex Inc.
InventorFadi EL CHEIKH ALI
Life of this patent
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Abstract
There are provided herein polymeric films and sheet structures comprising treated latex paint and one or more water-insoluble polymer component, methods for producing such films using a continuous film-making process, and articles thereof. Methods provided herein allow recycling of waste latex paint into thin films and sheets using continuous film-making processes and/or while controlling levels of toxic or volatile contaminants.
Claims92
A polymeric film comprising treated latex paint and one or more water-insoluble polymer component immiscible with the treated latex paint, wherein the treated latex paint comprises at least one latex paint polymer.
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A method for preparing treated latex paint for use in recycling waste latex paint in a polymeric film using a continuous film-making process, the method comprising the steps of:
- a) reducing the initial moisture content of the latex paint to about 30 wt. % or less;
- b) treating the latex paint to reduce, remove, or neutralize ethylene glycol and/or volatile organic compounds (VOCs);
- and
- c) optionally, treating the latex paint to control particle-size distribution and/or top particle size of the latex paint;
- optionally wherein the latex paint and/or the waste latex paint is non-reusable waste latex paint.
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Dependencies are inferred from the claim text.