MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617057475 A) filed by Michelman, Inc. on May 06, 2026, for Synthetic Polymer-Free Coating Formulations Containing Shellac And Methods Associated Therewith.
Inventors include Sushko, Rymma; Reekmans, Steven; and Piran, David.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: Coatings may convey moisture resistance when deposited upon a base substrate. Coating formulations containing no synthetic polymers may comprise: an aqueous fluid, at least partially neutralized shellac dissolved in the aqueous fluid, and a plurality of wax particles emulsified as solids in the aqueous fluid. Thin-film coatings formed by depositing the coating formulations and removing the aqueous fluid therefrom may be significantly impermeable to water, as determined by the thin-film coating having a moisture vapor transmission rate of at most about 1200 m2/g, as measured at 38°C and 90% relative humidity by ASTM F1249 or ASTM E96, and/or a Cobb index of at most about 105 m2/g, as measured over 1800 s by ISO 535, ASTM D3285, or TAPPI T441.
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