Polymer for pitch and stickies deposition control in papermaking

Patent metadata

Field	Value
Publication number	US-10519602-B2
Application number	US-201816008589-A
Country	US
Kind code	B2
Filing date	Jun 14, 2018
Priority date	Jun 15, 2017
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

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).

First claim

The invention claimed is:

1. 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, R 1 is hydrogen or C 1 -C 9 alkyl, R 2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R 3 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 9 alkyl, and a combination thereof, Z is CH 2 , 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 R 4 is hydrogen or C 1 -C 9 alkyl, and each R 5 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 10 aliphatic chain, C 1 -C 10 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, R 6 is hydrogen or C 1 -C 9 alkyl, Z is CH 2 , CHOH, CHOR, or a combination thereof, wherein R is a substituent with one or more quanternized amine(s), and each R 7 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 9 alkyl, l is integer from 0 to 10, and a combination thereof.

2. The polymer of claim 1 , comprising from about 0.1 mol % to about 80 mol % of the one or more monomer unit(s) of formula III.

3. The polymer of claim 2 , comprising from about 20 mol % to about 60 mol % of the one or more monomer unit(s) of formula III.

4. The polymer of claim 3 , comprising from about 20 mol % to about 40 mol % of the one or more monomer unit(s) of formula III.

5. The polymer of claim 1 , wherein R 2 is an aliphatic chain selected from about 10 to about 20 carbon units in length or a combination thereof.

6. The polymer of claim 1 , wherein each X is the same or different and is independently an anion which comprises an element selected from the group consisting of a halogen, sulfur, carbon, silicon, boron, nitrogen, phosphorous, and combinations thereof.

7. The polymer of claim 1 , wherein each X is the same or different and is independently a halogen selected from the group consisting of fluoride, chloride, bromide, iodide, and combinations thereof.

8. 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, R 1 is hydrogen or C 1 -C 9 alkyl, R 2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R 3 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 9 alkyl, and a combination thereof, Z is CH 2 , 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 R 4 is hydrogen or C 1 -C 9 alkyl, and each R 5 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 10 aliphatic chain, C 1 -C 10 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.

9. The polymer of claim 8 , wherein the one or more additional monomer unit(s) is a cationic monomer unit selected from diallyldimethylammonium chloride (“DADMAC”), 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”), 3-methacrylamidopropyl-trimethyl-ammonium chloride (“MAPTAC”), and 3-acrylamidopropyl-trimethyl-ammonium chloride (“APTAC”).

10. The polymer of claim 9 , wherein the one or more additional monomer unit(s) is diallyldimethylammonium chloride (“DADMAC”).

11. The polymer of claim 9 , comprising from about 50 mol % to about 90 mol % of the one or more additional monomer unit(s).

12. 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, R 1 is hydrogen or C 1 -C 9 alkyl, R 2 is an aliphatic chain or a heteroaliphatic chain from about 10 to about 30 carbon units in length, each R 3 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 9 alkyl, and a combination thereof, Z is CH 2 , 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 R 4 is hydrogen or C 1 -C 9 alkyl, and each R 5 is the same or different and is independently selected from hydrogen, aryl, C 1 -C 10 aliphatic chain, C 1 -C 10 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]prop

Assignees

• Ecolab Usa Inc

Inventors

• Li Xiaojin Harry
• Shevchenko Sergey M
• Gray Ross
• Lowe Robert M
• Jordan David
• Zong Zhengang

Classifications

• D21H21/02

  Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control (removal of fats, resins, pitch, or waxes D21C9/08) · CPC title

• C08F220/22

  Esters containing halogen · CPC title

• C08F220/56

  Acrylamide; Methacrylamide · CPC title

• D21H21/04

  Slime-control agents · CPC title

• D21H23/14

  by selecting point of addition or time of contact between components · CPC title