Hydroscopic Polymer Gels Patented by Clorox
U.S. Patent No. 7,470,290 B2: The Clorox Company has patented a method of forming a hydroscopic polymer gel on a surface for easier cleaning. The method entails applying a water soluble or water dispersible polymer to the surface to form a layer of the polymer on the surface; and allowing water to be sequestered to the layer to form the polymer gel, wherein the polymer gel is not visible and has a thickness that ranges from 0.1-500nm to protect the surface against wetting by oil. The polymer is comprised of a water soluble or water dispersible copolymer having: a first monomer that is acidic and that is capable of forming an anionic charge; a second monomer that is an amphipathic monomer that contains at least one hydrophobic moiety and at least one hydrophilic moiety which together define the amphipathic monomer; and optionally, a third monomer that is hydrophobic; and optionally, a fourth monomer that has a permanent cationic charge or that is capable of forming a cationic charge on protonation.
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