CA3009585A1 - A process for obtaining a cationic polymer with an at least bimodal molecular weight distribution - Google Patents

A process for obtaining a cationic polymer with an at least bimodal molecular weight distribution Download PDF

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Publication number
CA3009585A1
CA3009585A1 CA3009585A CA3009585A CA3009585A1 CA 3009585 A1 CA3009585 A1 CA 3009585A1 CA 3009585 A CA3009585 A CA 3009585A CA 3009585 A CA3009585 A CA 3009585A CA 3009585 A1 CA3009585 A1 CA 3009585A1
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CA
Canada
Prior art keywords
polymerization
monomer
sved
weight
cationic polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA3009585A
Other languages
English (en)
French (fr)
Inventor
Rheinhold J. Leyrer
Gledison Fonseca
Aaron FLORES-FIGUEROA
Volodymyr Boyko
Robert Richard Dykstra
Mark Robert Sivik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of CA3009585A1 publication Critical patent/CA3009585A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56—Acrylamide; Methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C08F2/22—Emulsion polymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
    • C08F226/08—N-Vinyl-pyrrolidine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
    • C08F226/10—N-Vinyl-pyrrolidone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
    • C08F226/12—N-Vinylcarbazole
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C08L39/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
    • C08F2500/05—Bimodal or multimodal molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
CA3009585A 2016-01-25 2017-01-16 A process for obtaining a cationic polymer with an at least bimodal molecular weight distribution Abandoned CA3009585A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16152590 2016-01-25
EP16152590.2 2016-01-25
PCT/EP2017/050829 WO2017129434A1 (en) 2016-01-25 2017-01-16 A process for obtaining a cationic polymer with an at least bimodal molecular weight distribution

Publications (1)

Publication Number Publication Date
CA3009585A1 true CA3009585A1 (en) 2017-08-03

Family

ID=55310649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3009585A Abandoned CA3009585A1 (en) 2016-01-25 2017-01-16 A process for obtaining a cationic polymer with an at least bimodal molecular weight distribution

Country Status (12)

Country Link
US (1) US10920001B2 (cg-RX-API-DMAC7.html)
EP (1) EP3408301B1 (cg-RX-API-DMAC7.html)
JP (1) JP7068190B2 (cg-RX-API-DMAC7.html)
KR (1) KR20180104298A (cg-RX-API-DMAC7.html)
CN (1) CN108602902B (cg-RX-API-DMAC7.html)
BR (1) BR112018014989B1 (cg-RX-API-DMAC7.html)
CA (1) CA3009585A1 (cg-RX-API-DMAC7.html)
ES (1) ES2794828T3 (cg-RX-API-DMAC7.html)
MX (1) MX2018009117A (cg-RX-API-DMAC7.html)
PL (1) PL3408301T3 (cg-RX-API-DMAC7.html)
RU (1) RU2734916C9 (cg-RX-API-DMAC7.html)
WO (1) WO2017129434A1 (cg-RX-API-DMAC7.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108495868B (zh) 2016-01-25 2021-03-19 巴斯夫欧洲公司 具有至少双峰分子量分布的阳离子聚合物
FR3079833B1 (fr) 2018-04-10 2020-10-09 Rhodia Operations Composition aqueuse gelifiee pour l'extraction petroliere
FR3096985B1 (fr) * 2019-06-05 2021-05-14 S N F Sa Procede de preparation de polymeres structures sous forme de poudre par voie gel

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5578682A (en) * 1995-05-25 1996-11-26 Exxon Chemical Patents Inc. Bimodalization of polymer molecular weight distribution
ID22894A (id) * 1996-10-03 1999-12-16 Cytec Tech Corp Dispersi berair
US6258504B1 (en) * 1999-10-13 2001-07-10 Nashua Corporation Toner containing resin prepared by a combination of emulsion followed by suspension polymerization
DE10059824A1 (de) * 2000-12-01 2002-06-13 Clariant Gmbh Elektrolythaltige kosmetische, pharmazeutische und dermatologische Mittel
US6864223B2 (en) 2000-12-27 2005-03-08 Colgate-Palmolive Company Thickened fabric conditioners
WO2003102043A1 (en) 2002-06-04 2003-12-11 Ciba Specialty Chemicals Holdings Inc. Aqueous polymer formulations
CN100349926C (zh) * 2002-08-15 2007-11-21 西巴特殊化学水处理有限公司 通过后聚合交联反应获得的高分子量阳离子聚合物
ES2268490T3 (es) 2002-11-29 2007-03-16 Ciba Specialty Chemicals Holding Inc. Composiciones acuosas que comprenden homo- y/o copolimeros.
FR2879607B1 (fr) 2004-12-16 2007-03-30 Seppic Sa Nouveaux latex inverse concentre, procede pour sa preparation, et utilisation dans l'industrie
ZA200704946B (en) * 2004-12-28 2008-09-25 Akzo Nobel Nv Polymer dispersion and process for preparing a polymer dispersion
MX295407B (es) * 2005-01-27 2012-02-01 Ciba Sc Holding Ag Uso de polimeros cationicos solubles en agua, reticulados, de alto peso molecular en formulaciones de cuidado de cabello.
US7639737B2 (en) 2006-04-27 2009-12-29 Rambus Inc. Adaptive equalization using correlation of edge samples with data patterns
BRPI0923923B1 (pt) 2009-01-06 2019-02-05 Unilever Nv composição condicionadora de tecidos, processo para preparação da composição, uso da composição,e , uso de um copolímero catiônico
MX300451B (es) 2009-01-06 2012-06-19 Spcm Sa Nuevos espesadores polimericos cationicos.
US8633278B2 (en) * 2009-04-17 2014-01-21 Hercules Incorporated Bimolecular inverse emulsion polymer
JP2012254430A (ja) * 2011-06-10 2012-12-27 Hymo Corp 凝集処理剤およびそれを用いた汚泥脱水方法
PH12014500895A1 (en) * 2011-11-11 2014-02-06 Basf Se Thickener containing at least one cationic polymer
PH12014500893A1 (en) 2011-11-11 2014-02-06 Basf Se Thickener containing at least one cationic polymer which can be obtained by inverse emulsion poylmerisation.
WO2013174622A1 (en) 2012-05-21 2013-11-28 Basf Se Inverse dispersion comprising a cationic polymer and a stabilizing agent
JP2014233647A (ja) * 2013-05-31 2014-12-15 ハイモ株式会社 凝集処理剤及び汚泥の脱水方法
EP3099769A1 (de) 2014-01-29 2016-12-07 Basf Se Polymere als additive für kraft und schmierstoffe
WO2016127387A1 (en) 2015-02-13 2016-08-18 The Procter & Gamble Company Cleaning compositions containing alkyl sulfate surfactants and cationic polymer for holistic improvement of sudsing profile
WO2015143644A1 (en) 2014-03-26 2015-10-01 The Procter & Gamble Company Cleaning compositions containing cationic polymers, and methods of making and using same
WO2016074142A1 (en) 2014-11-11 2016-05-19 The Procter & Gamble Company Detergent or cleaning compositions with improved sudsing profile
WO2015143645A1 (en) 2014-03-26 2015-10-01 The Procter & Gamble Company Cleaning compositions containing cationic polymers, and methods of making and using same
WO2015143997A1 (en) 2014-03-26 2015-10-01 The Procter & Gamble Company Cleaning compositions containing cationic polymers, and methods of making and using same
CA2952987A1 (en) 2014-07-23 2016-01-28 The Procter & Gamble Company Treatment compositions
CA2951936A1 (en) 2014-07-23 2016-01-28 The Procter & Gamble Company Fabric and/or home care compositions
US20160024428A1 (en) 2014-07-23 2016-01-28 The Procter & Gamble Company Treatment compositions
US20160024432A1 (en) 2014-07-23 2016-01-28 The Procter & Gamble Company Treatment compositions
CA2952983C (en) 2014-07-23 2020-04-28 The Procter & Gamble Company Fabric and home care treatment compositions
US20170204212A1 (en) 2014-07-23 2017-07-20 Basf Se Inverse dispersion comprising a cationic polymer, a stabilizing agent and a trifunctional and/or polyfunctional crosslinker
CA2952990C (en) 2014-07-23 2020-04-28 The Procter & Gamble Company Treatment compositions
US10519402B2 (en) 2014-07-23 2019-12-31 The Procter & Gamble Company Treatment compositions
CA2957294A1 (en) 2014-08-27 2016-03-03 The Procter & Gamble Company Method of preparing a detergent composition
CA2956088C (en) 2014-08-27 2019-07-30 The Procter & Gamble Company Detergent composition comprising a cationic polymer
WO2016032991A1 (en) 2014-08-27 2016-03-03 The Procter & Gamble Company Detergent composition comprising a cationic polymer
CA2956121A1 (en) 2014-08-27 2016-03-03 The Procter & Gamble Company Method of treating a fabric
RU2560177C1 (ru) * 2014-10-16 2015-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) Способ получения водорастворимых полимеров на основе четвертичных солей диметиламиноэтилметакрилата
EP3221372B1 (en) 2014-11-18 2020-06-10 Basf Se Rheology modifier
EP3408365A1 (en) 2016-01-25 2018-12-05 The Procter and Gamble Company Treatment compositions
CN108495868B (zh) 2016-01-25 2021-03-19 巴斯夫欧洲公司 具有至少双峰分子量分布的阳离子聚合物

Also Published As

Publication number Publication date
BR112018014989A2 (en) 2018-12-11
ES2794828T3 (es) 2020-11-19
CN108602902A (zh) 2018-09-28
MX2018009117A (es) 2018-11-09
RU2734916C9 (ru) 2021-04-26
RU2018130687A (ru) 2020-02-27
RU2018130687A3 (cg-RX-API-DMAC7.html) 2020-03-25
US10920001B2 (en) 2021-02-16
EP3408301A1 (en) 2018-12-05
CN108602902B (zh) 2021-06-04
EP3408301B1 (en) 2020-03-11
BR112018014989B1 (pt) 2022-06-28
KR20180104298A (ko) 2018-09-20
JP2019505657A (ja) 2019-02-28
US20190062478A1 (en) 2019-02-28
WO2017129434A1 (en) 2017-08-03
PL3408301T3 (pl) 2020-08-24
JP7068190B2 (ja) 2022-05-16
RU2734916C2 (ru) 2020-10-26

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Legal Events

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FZDE Discontinued

Effective date: 20210831

FZDE Discontinued

Effective date: 20210831