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US 10,519,602 B2Granted
Polymer for pitch and stickies deposition control in papermaking
AssigneeEcolab USA Inc.
InventorsXiaojin Harry Li, Sergey M. Shevchenko, Ross Gray, Robert M. Lowe, David Jordan, Zhengang Zong
Life of this patent
Estimating the term…
Abstract
An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
Claims20
A polymer for use in papermaking comprising,
- one or more monomer unit(s) of formula I:
- wherein each X is the same or different and is independently selected from an anion, R1 is hydrogen or C1-C9 alkyl, R2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R3 is the same or different and is independently selected from hydrogen, aryl, C1-C9 alkyl, and a combination thereof, Z is CH2 , CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), m is an integer from 0 to 11, and n is an integer from 0 to 5;
- one or more monomer unit(s) of formula II:
- wherein R4 is hydrogen or C1-C9 alkyl, and each R5 is the same or different and is independently selected from hydrogen, aryl, C1-C10 aliphatic chain, C1-C10 heteroaliphatic chain, and a combination thereof;
- and
- one or more monomer unit(s) of formula III:
- wherein each X is the same or different and is independently selected from an anion, R6 is hydrogen or C1-C9 alkyl, Z is CH2, CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), and each R7 is the same or different and is independently selected from hydrogen, aryl, C1-C9 alkyl, l is integer from 0 to 10, and a combination thereof.
4 more elements
A polymer for use in papermaking comprising,
- one or more monomer unit(s) of formula I:
- wherein each X is the same or different and is independently selected from an anion, R1 is hydrogen or C1-C9 alkyl, R2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R3 is the same or different and is independently selected from hydrogen, aryl, C1-C9 alkyl, and a combination thereof, Z is CH2, CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), m is an integer from 0 to 11, and n is an integer from 0 to 5;
- one or more monomer unit(s) of formula II:
- wherein R4 is hydrogen or C1-C9 alkyl, and each R5 is the same or different and is independently selected from hydrogen, aryl, C1-C10 aliphatic chain, C1-C10 heteroaliphatic chain, and a combination thereof;
- and
- one or more additional monomer unit(s) selected from 2-(dimethylamino)ethyl acrylate (“DMAEA”), 2-(dimethylamino)ethyl methacrylate (“DMAEM”), 3-(dimethylamino)propyl methacrylamide (“DMAPMA”), 3-(dimethylamino)propyl acrylamide (“DMAPA”), 3-methacrylamidopropyl-trimethyl-ammonium chloride (“MAPTAC”), 3-acrylamidopropyl-trimethyl-ammonium chloride (“APTAC”), N-vinyl pyrrolidone (“NVP”), diallyldimethylammonium chloride (“DADMAC”), diallylamine, vinylformamide, 2-(acryloyloxy)-N,N,N-trimethylethanaminium chloride (“DMAEA.MCQ”), 2-(methacryloyloxy)-N,N,N-trimethylethanaminium chloride (“DMAEM.MCQ”), N,N-dimethylaminoethyl acrylate benzyl chloride (“DMAEA.BCQ”), N,N-dimethylaminoethyl methacrylate benzyl chloride (“DMAEM.BCQ”), 2-acrylamido-2-methylpropane sulfonic acid (“AMPS”), 2-acrylamido-2-methylbutane sulfonic acid (“AMBS”), [2-methyl-2-[(1-oxo-2-propenyl)amino]propyl]-phosphonic acid, (meth)acrylic acid, salts thereof, and combinations thereof.
3 more elements
A method of controlling pitch and stickies deposition in papermaking process, comprising treating pulp slurry with a polymer comprising,
- one or more monomer unit(s) of formula I:
- wherein each X is the same or different and is independently selected from an anion, R1 is hydrogen or C1-C9 alkyl, R2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R3 is the same or different and is independently selected from hydrogen, aryl, C1-C9 alkyl, and a combination thereof, Z is CH2, CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), m is an integer from 0 to 11, and n is an integer from 0 to 5;
- one or more monomer unit(s) of formula II:
- wherein R4 is hydrogen or C1-C9 alkyl, and each R5 is the same or different and is independently selected from hydrogen, aryl, C1-C10 aliphatic chain, C1-C10 heteroaliphatic chain, or a combination thereof;
- and
- one or more additional monomer unit(s) selected from 2-(dimethylamino)ethyl acrylate (“DMAEA”), 2-(dimethylamino)ethyl methacrylate (“DMAEM”), 3-(dimethylamino)propyl methacrylamide (“DMAPMA”), 3-(dimethylamino)propyl acrylamide (“DMAPA”), 3-methacrylamidopropyl-trimethyl-ammonium chloride (“MAPTAC”), 3-acrylamidopropyl-trimethyl-ammonium chloride (“APTAC”), N-vinyl pyrrolidone (“NVP”), diallyldimethylammonium chloride (“DADMAC”), diallylamine, vinylformamide, 2-(acryloyloxy)-N,N,N-trimethylethanaminium chloride (“DMAEA.MCQ”), 2-(methacryloyloxy)-N,N,N-trimethylethanaminium chloride (“DMAEM.MCQ”), N,N-dimethylaminoethyl acrylate benzyl chloride (“DMAEA.BCQ”), N,N-dimethylaminoethyl methacrylate benzyl chloride (“DMAEM.BCQ”), 2-acrylamido-2-methylpropane sulfonic acid (“AMPS”), 2-acrylamido-2-methylbutane sulfonic acid (“AMBS”), [2-methyl-2-[(1-oxo-2-propenyl)amino]propyl]-phosphonic acid, (meth)acrylic acid,
- one or more monomer unit(s) of formula III:
- wherein each X is the same or different and is independently selected from an anion, R6 is hydrogen or C1-C9 alkyl, 1 is integer from 0 to 10, Z is CH2, CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), and each R7 is the same or different and is independently selected from hydrogen, aryl, C1-C9 alkyl, and a combination thereof,
- salts thereof, and a combination thereof.
6 more elements
Dependencies are inferred from the claim text.