Composition comprising a tannin-containing copolymer
AssigneeBetzDearborn Inc.
InventorsJen-Chi Chen, Fu Chen, Gerald C. Walterick, Jr.
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Abstract
Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The tannin containing polymers comprise copolymers of tannin and a cationic monomer. Another embodiment comprises tannin containing polymers of tannin, cationic monomer and at least one monomer selected from the group consisting of an anionic monomer and a nonionic monomer.
Claims13
A water soluble or dispersible polymer composition comprising a copolymer of a tannin and a cationic monomer selected from the group consisting of methyl chloride or dimethyl sulfate quaternary salt of dimethylaminoethyl acrylate, diethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, dimethyl aminopropyl methacrylamide, and dimethylaminopropyl acrylamide.
A water soluble or dispersible polymer composition comprising a polymer of a tannin, a cationic monomer selected from the group consisting of methyl chloride or dimethyl sulfate quaternary salt of dimethylaminoethyl acrylate, diethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, dimethyl aminopropyl methacrylamide, and dimethylaminopropyl acrylamide, and at least one monomer selected from the group consisting of an anionic monomer and a nonionic monomer.
Dependencies are inferred from the claim text.