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DE3160784D1 - Anionic dispersions, process for their preparation and their use as surface sizing agents for paper - Google Patents

Anionic dispersions, process for their preparation and their use as surface sizing agents for paper

Info

Publication number
DE3160784D1
DE3160784D1 DE8181102874T DE3160784T DE3160784D1 DE 3160784 D1 DE3160784 D1 DE 3160784D1 DE 8181102874 T DE8181102874 T DE 8181102874T DE 3160784 T DE3160784 T DE 3160784T DE 3160784 D1 DE3160784 D1 DE 3160784D1
Authority
DE
Germany
Prior art keywords
polymerization
weight
ethylenically unsaturated
water
stage
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.)
Expired
Application number
DE8181102874T
Other languages
German (de)
Inventor
Konrad Dr Richter
Lothar Dr Hoehr
Fritz Dr Reichel
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
Priority to DE8181102874T priority Critical patent/DE3160784D1/en
Application granted granted Critical
Publication of DE3160784D1 publication Critical patent/DE3160784D1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

1. An anionic dispersion produced by a two-stage polymerization reaction, a mixture of nonionic ethylenically unsaturated monomers containing sulphonic acid groups being copolymerized in the first polymerization stage in the manner of a solution copolymerization in a water-miscible solvent in the presence of a polymerization initiator, which is soluble in the monomer mixture, to give a homogeneous solution, and, after dilution with water, polymerization being carried out in the second polymerization stage in the manner of an emulsion polymerization in the presence of a usual amount of a water-soluble polymerization initiator, characterized in that in the first polymerization stage a mixture of a) 85 to 55% by weight of nonionic ethylenically unsaturated monomers, and b) 15 to 45% by weight of ethylenically unsaturated monomers containing sulphonic acid groups is copolymerized in the presence of 0.015 to 0.15 mole of a polymerization initiator, which is soluble in the monomer mixture, per mole of monomer mixture, the homogeneous polymer solution is diluted with water in a weight ratio of 1 : 3 to 1 : 50, and 1 to 4 parts by weight of at least one nonionic ethylenically unsaturated monomer per part by weight of the solution polymer are polymerized in this polymer solution in the second polymerization stage.
DE8181102874T 1980-05-12 1981-04-15 Anionic dispersions, process for their preparation and their use as surface sizing agents for paper Expired DE3160784D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8181102874T DE3160784D1 (en) 1980-05-12 1981-04-15 Anionic dispersions, process for their preparation and their use as surface sizing agents for paper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803018081 DE3018081A1 (en) 1980-05-12 1980-05-12 ANIONIC DISPERSIONS FOR SURFACE SIZING OF PAPER
DE8181102874T DE3160784D1 (en) 1980-05-12 1981-04-15 Anionic dispersions, process for their preparation and their use as surface sizing agents for paper

Publications (1)

Publication Number Publication Date
DE3160784D1 true DE3160784D1 (en) 1983-09-29

Family

ID=6102167

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19803018081 Withdrawn DE3018081A1 (en) 1980-05-12 1980-05-12 ANIONIC DISPERSIONS FOR SURFACE SIZING OF PAPER
DE8181102874T Expired DE3160784D1 (en) 1980-05-12 1981-04-15 Anionic dispersions, process for their preparation and their use as surface sizing agents for paper

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19803018081 Withdrawn DE3018081A1 (en) 1980-05-12 1980-05-12 ANIONIC DISPERSIONS FOR SURFACE SIZING OF PAPER

Country Status (3)

Country Link
EP (1) EP0039794B1 (en)
AT (1) ATE4513T1 (en)
DE (2) DE3018081A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL127267C (en) * 1958-12-27
BE789727A (en) * 1971-10-06 1973-04-05 Calgon Corp WATER-SOLUBLE POLYMERS OF 2-ACYLAMIDO-2-METHYLPROPANE SULPHONIC ACID
DE2548393A1 (en) * 1975-10-29 1977-05-12 Basf Ag Sizing material for paper - with high solids, low viscosity and good alkali stability
US4065523A (en) * 1975-11-24 1977-12-27 Rohm And Haas Company Process for increasing molecular weight of a polymer

Also Published As

Publication number Publication date
EP0039794A1 (en) 1981-11-18
ATE4513T1 (en) 1983-09-15
EP0039794B1 (en) 1983-08-24
DE3018081A1 (en) 1981-11-19

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Legal Events

Date Code Title Description
8330 Complete renunciation