Dry strength agent composition and method for enhancing the dry strength of paper
AssigneeEcolab USA Inc.
InventorsYulin Zhao, Chunhao Wang, Na Xu, Jun Li, Meng Zhang
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Abstract
The present disclosure relates to a dry strength agent composition, use of an amine-containing cationic polymer for enhancing the dry strength of paper, and a method for enhancing the dry strength of paper. The dry strength agent composition includes at least two components. The first component is an amine-containing cationic polymer and the second component may be one or more anionic or amphoteric polymers.
Claims20
A dry strength agent composition comprising a first component and a second component, the first component comprising an amine-containing cationic polymer and the second component comprising a member selected from the group consisting of an anionic polymer, an amphoteric polymer, and any combination thereof, wherein the amine-containing cationic polymer includes a polymer with randomly distributed amine-based monomer repeating units derived from at least one of the following structures or a salt thereof:
- wherein R represents hydrogen or C1-20 alkyl;
- R1, R2, R3, R4, R5, R6 are independently selected from hydrogen, C1-20 alkyl, or C1-20 alkoxylalkyl.
A dry strength agent composition comprising a first component and a second component, the first component comprising an amine-containing cationic polymer and the second component comprising a member selected from the group consisting of an anionic polymer, an amphoteric polymer, and any combination thereof,
- wherein the anionic polymers of the second component are acrylamide copolymers formed by one or more acrylamide monomers and one or more anionic monomers,
- wherein the anionic monomers are selected from acrylic acid, methacrylic acid, allyl sulfonic acid, methyl allylsulfonic acid, 1-acrylamido-2-methyl-1-propane sulfonic acid, corresponding salts thereof, and any combination thereof.
A dry strength agent composition comprising a first component and a second component, the first component comprising an amine-containing cationic polymer and the second component comprising a member selected from the group consisting of an anionic polymer, an amphoteric polymer, and any combination thereof,
- wherein the amphoteric polymers of the second component are acrylamide copolymers formed by one or more acrylamide monomers, one or more cationic monomers and one or more anionic monomers,
- wherein the cationic monomers are one or more selected from the group consisting of methacryloyloxyethyl trimethylammonium chloride, acryloyloxyethyl trimethylammonium chloride, methacryloyloxyethyl dimethylbenzyl ammonium chloride, acryloyloxyethyl dimethylbenzyl ammonium chloride, (3-acrylamidopropyl)trimethylammonium chloride, methacrylamidopropyl trimethylammonium chloride, 3-acrylamido-3-methylbutyl trimethylammonium chloride, 2-vinyl pyridine, 2-(dimethylamino)ethyl methacrylate, 2-(dimethylamino)ethyl acrylate, diallyl amine, triallyl amine, diallyl dimethyl ammonium chloride, N-(3-dimethylaminopropyl)acrylamide, N-(3-dimethylaminopropyl)methacrylamide, N-(3-dimethylaminoethyl)acrylamide, N-(3-dimethylaminoethyl)methacrylamide, trimethyl-2-acryloyloxyethyl ammonium chloride, trimethyl-2-methacryloyloxyethyl ammonium chloride, 2-(dimethylamino)ethyl acrylate, 2-(dimethylamino)ethyl methacrylate, and any combination thereof.
Dependencies are inferred from the claim text.