Water Soluble Polymer Powders with Improved Dispersibility
AssigneeHercules Incorporated
InventorsPrachur Bhargava, Michael A. Tallon, Konstantin A. Vaynberg
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Abstract
The presently disclosed and claimed inventive concept(s) relates to a dry powder composition comprising water soluble polymer powders, and a component in powder form. The dry powder composition shows improved water dispersibility compared to the water soluble polymer powders. The presently disclosed and claimed inventive concept(s) further relates to an aqueous protective coating composition comprising the dry powder composition.
Claims18
A dry powder composition comprising water soluble polymer powders and a component, wherein the component is selected from the group consisting of boric acid, sodium chloride, sodium metaborate, poly(methylvinylether-alt-maleic acid), poly(methylvinylether-alt-maleic acid)ester copolymer, poly(methylvinylether-alt-maleic anhydride), poly(methylvinylether-alt-maleic anhydride)ester copolymer, poly(styrene-co-maleic acid), poly(styrene-co-maleic acid)ester copolymer, poly(styrene-co-maleic anhydride), poly(styrene-co-maleic anhydride)ester copolymer, styrene acrylic acid copolymer, styrene acrylic acid ester copolymer, hydrophobically modified polyacetal polyether, polyvinylpyrrolidone, polyvinylpolypyrrolidone, isobutylene/dimethylaminopropylmaleimide hydroxyethylmaleimide copolymer, isobutylene ethylaminopropylmaleimide/ethoxylated maleimide/maleic acid copolymer, urethane acrylate methacrylate, urea phosphate, silicone, acrylic polymer, polydiallyl dimethyl ammonium chloride, phosphorus ester, polyoxyethylene-polyoxypropylene block copolymer, and hydrohobically modified ethoxylated urethane, vinylpyrrolidone vinylacetate copolymer, and combinations thereof.
A method of producing a dry powder composition comprising blending water soluble polymer powders with a component, wherein the component is selected from the group consisting of boric acid, sodium chloride, sodium metaborate, poly(methylvinylether-alt-maleic acid), poly(methylvinylether-alt-maleic acid)ester copolymer, poly(methylvinylether-alt-maleic anhydride), poly(methylvinylether-alt-maleic anhydride)ester copolymer, poly(styrene-co-maleic acid), poly(styrene-co-maleic acid)ester copolymer, poly(styrene-co-maleic anhydride), poly(styrene-co-maleic anhydride) ester copolymer, styrene acrylic acid copolymer, styrene acrylic acid ester copolymer, hydrophobically modified polyacetal polyether, polyvinylpyrrolidone, polyvinylpolypyrrolidone, isobutylene/dimethylaminopropylmaleimide hydroxyethylmaleimide copolymer, isobutylene ethylaminopropylmaleimide/ethoxylated maleimide/maleic acid copolymer, urethane acrylate methacrylate, urea phosphate, silicone, acrylic polymer, polydiallyl dimethyl ammonium chloride, phosphorus ester, polyoxyethylene-polyoxypropylene block copolymer, and hydrophobically modified ethoxylated urethane, vinylpyrrolidone vinylacetate copolymer, and combinations thereof.
A method of producing a dry powder composition comprising coating water soluble polymer powders with a component, wherein the component is selected from the group consisting of boric acid, sodium chloride, sodium metaborate, poly(methylvinylether-alt-maleic acid), poly(methylvinylether-alt-maleic acid)ester copolymer, poly(methylvinylether-alt-maleic anhydride), poly(methylvinylether-alt-maleic anhydride) ester copolymer, poly(styrene-co-maleic acid), poly(styrene-co-maleic acid)ester copolymer, poly(styrene-co-maleic anhydride), poly(styrene-co-maleic anhydride)ester copolymer, styrene acrylic acid copolymer, styrene acrylic acid ester copolymer, hydrophobically modified polyacetal polyether, polyvinylpyrrolidone, polyvinylpolypyrrolidone, isobutylene/dimethylaminopropylmaleimide hydroxyethylmaleimide copolymer, isobutylene ethylaminopropylmaleimide/ethoxylated maleimide/maleic acid copolymer, urethane acrylate methacrylate, urea phosphate, silicone, acrylic polymer, polydiallyl dimethyl ammonium chloride, phosphorus ester, polyoxyethylene-polyoxypropylene block copolymer, and hydrophobically modified ethoxylated urethane, vinylpyrrolidone vinylacetate copolymer, and combinations thereof.
Dependencies are inferred from the claim text.