[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CA2037292A1 - Preparation of finely divided, water-soluble polymers - Google Patents

Preparation of finely divided, water-soluble polymers

Info

Publication number
CA2037292A1
CA2037292A1 CA2037292A CA2037292A CA2037292A1 CA 2037292 A1 CA2037292 A1 CA 2037292A1 CA 2037292 A CA2037292 A CA 2037292A CA 2037292 A CA2037292 A CA 2037292A CA 2037292 A1 CA2037292 A1 CA 2037292A1
Authority
CA
Canada
Prior art keywords
surfactant
polymerization
water
finely divided
soluble polymers
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.)
Granted
Application number
CA2037292A
Other languages
French (fr)
Other versions
CA2037292C (en
Inventor
Manfred Niessner
Stefan Wickel
Walter Schneider
Juergen Beck
Heinrich Hartmann
Thomas Meyer
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 CA2037292A1 publication Critical patent/CA2037292A1/en
Application granted granted Critical
Publication of CA2037292C publication Critical patent/CA2037292C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C08F2/04—Polymerisation in solution
    • C08F2/10—Aqueous solvent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Finely divided, water-soluble polymers are prepared by polymerization of water-soluble, monoethylenically unsaturated monomers in not less than 20% strength by weight aqueous solution in the presence of a polymerization initiator in a kneader by a process in which from 0.1 to 10% by weight, based on the total monomers, of a surfactant are used in the polymerization, the polymerization initially being carried out to a conversion of the monomers of not less than 60% in the absence of the surfactant or in the presence of not more than 50% of the amount of surfactant, and the remaining amount of surfactant then being added to the reaction mixture and the polymerization completed. The addition of surfactant causes the polymer gel to disintegrate with formation of fine particles.
CA002037292A 1990-03-08 1991-02-28 Preparation of finely divided, water-soluble polymers Expired - Fee Related CA2037292C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4007313.0 1990-03-08
DE4007313A DE4007313A1 (en) 1990-03-08 1990-03-08 METHOD FOR PRODUCING FINE-PART, WATER-SOLUBLE POLYMERISATS

Publications (2)

Publication Number Publication Date
CA2037292A1 true CA2037292A1 (en) 1991-09-09
CA2037292C CA2037292C (en) 2000-09-26

Family

ID=6401692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002037292A Expired - Fee Related CA2037292C (en) 1990-03-08 1991-02-28 Preparation of finely divided, water-soluble polymers

Country Status (6)

Country Link
EP (1) EP0445619B1 (en)
JP (1) JP2901773B2 (en)
AU (1) AU633705B2 (en)
CA (1) CA2037292C (en)
DE (2) DE4007313A1 (en)
ZA (1) ZA911671B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316200A1 (en) * 1993-05-14 1994-11-17 Roehm Gmbh Process for the preparation of low-viscosity, water-soluble polymer dispersions
DE10037629A1 (en) * 2000-08-02 2002-02-14 Skw Bauwerkstoffe Deutschland Water-soluble or water-swellable sulfo-containing associative thickening copolymers, process for their preparation and their use
DE102005014291A1 (en) 2005-03-24 2006-09-28 Basf Ag Process for the preparation of water-absorbing polymers
FR2888240B1 (en) * 2005-07-11 2007-09-07 Biomerieux Sa SOLUBLE ELECTROPOLYMERISABLE MONOMERS IN AQUEOUS SOLUTION AND ELECTROACTIVE PROBES THAT MAY BE OBTAINED WITH SUCH MONOMERS
DE102005042604A1 (en) 2005-09-07 2007-03-08 Basf Ag Neutralization process
US8287664B2 (en) * 2006-07-12 2012-10-16 Vacuumschmelze Gmbh & Co. Kg Method for the production of magnet cores, magnet core and inductive component with a magnet core
EP2163266A1 (en) 2008-09-12 2010-03-17 The Procter & Gamble Absorbent article comprising water-absorbing material
US20120157302A1 (en) 2009-08-28 2012-06-21 Basf Se Process For Producing Triclosan-Coated Superabsorbents
BR112012005901A2 (en) 2009-09-16 2019-09-24 Basf Se superabsorbent, process for producing a superabsorbent, article for absorbing fluids, and process for producing articles for absorbing fluids
US8815770B2 (en) 2009-09-17 2014-08-26 Basf Se Color-stable superabsorber
EP2476714A1 (en) 2011-01-13 2012-07-18 Basf Se Polyurethane integral foams with improved surface hardness
EP2573153A3 (en) 2011-09-26 2014-07-30 Basf Se Heat storing composition containing sodium sulfate, decahydrate and superabsorber
US8741169B2 (en) 2011-09-26 2014-06-03 Basf Se Heat storage composition comprising sodium sulfate decahydrate and superabsorbent
WO2013144026A1 (en) 2012-03-30 2013-10-03 Basf Se Color-stable super-absorbent
KR20140142740A (en) 2012-03-30 2014-12-12 바스프 에스이 Color-stable super-absorbent
EP2730596A1 (en) 2012-11-13 2014-05-14 Basf Se Polyurethane soft foam materials containing plant seeds
US10881555B2 (en) 2016-03-30 2021-01-05 Basf Se Fluid-absorbent article
CN111278551B (en) 2017-11-10 2023-09-29 巴斯夫欧洲公司 Super absorbent
JP7361714B2 (en) 2018-04-10 2023-10-16 ビーエーエスエフ ソシエタス・ヨーロピア Osmotic superabsorbent and method of manufacturing the same
CN112512476A (en) 2018-08-01 2021-03-16 巴斯夫欧洲公司 Fluid-absorbent core
DE102019216910A1 (en) 2018-11-12 2020-05-14 Basf Se Process for post-crosslinking superabsorbents
CN114174357A (en) 2019-07-24 2022-03-11 巴斯夫欧洲公司 Permeable superabsorbents and method for the production thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232915A (en) * 1962-05-02 1966-02-01 Du Pont Suspension polymerization using 2-stage buffer salt addition to prevent clustering and to regulate bead size
US4286082A (en) * 1979-04-06 1981-08-25 Nippon Shokubai Kagaku Kogyo & Co., Ltd. Absorbent resin composition and process for producing same
JPH0830098B2 (en) * 1987-07-16 1996-03-27 日本合成化学工業株式会社 Super absorbent resin manufacturing method
DE3843780A1 (en) * 1988-12-24 1990-07-05 Basf Ag METHOD FOR PRODUCING FINE-PARTICLE, GEL-SHAPED, WATER-SWELLABLE COPOLYMERS

Also Published As

Publication number Publication date
AU633705B2 (en) 1993-02-04
DE59103454D1 (en) 1994-12-15
JP2901773B2 (en) 1999-06-07
EP0445619A3 (en) 1991-10-16
EP0445619A2 (en) 1991-09-11
JPH0597907A (en) 1993-04-20
AU7271491A (en) 1991-09-12
ZA911671B (en) 1992-11-25
CA2037292C (en) 2000-09-26
DE4007313A1 (en) 1991-09-12
EP0445619B1 (en) 1994-11-09

Similar Documents

Publication Publication Date Title
CA2037292A1 (en) Preparation of finely divided, water-soluble polymers
EP0735052A3 (en) Rate enhanced polymerization processes for producing polymers having narrow polydispersitylydispersität
DE58907102D1 (en) Process for the production of finely divided, gel-like, water-swellable copolymers.
AU591269B2 (en) Preparation of bead polymers based on water-soluble ethylenically unsaturated monomers
CA2199488A1 (en) Polymer beads incorporating solid particulate material and methods for the preparation thereof
AU5516394A (en) Process for efficient utilization of hypophosphorous acid and salts thereof
CA2038502A1 (en) Process for making controlled, uniform-sized particles in the 1 to 50 micrometer range
CA2164032A1 (en) Polymerization Processes
CA2123460A1 (en) Method for the production of a low-viscosity, water-soluble polymeric dispersion
CA2168423A1 (en) Heterogeneous polymerisation in carbon dioxide
EP0744435A4 (en) Water-absorbent resin, process for production thereof, and water-absorbent resin composition
MY121636A (en) Process for the preparation of polymer particles.
EP0349240A3 (en) Water-absorbent resin and production process
AU2469195A (en) Acrylate polymerization processes
EP0340844A3 (en) Process for the preparation of polymers of carbon monoxide with unsaturated compounds
EP0233014A3 (en) Polymers and processes for their production from water soluble monomers
AU563454B2 (en) Polymerization process
EP0810242A3 (en) A process of producing an ABS resin, an ABS resin, and an ABS-polycarbonate resin composition making use of the same
KR830008665A (en) Curable composition, method for producing molded article and dental equipment
GB1559353A (en) Process for preparing latex
DE3662897D1 (en) Process for the preparation of water soluble powdery polymers, and their use
WO1990015102A3 (en) High-gloss latex paints and polymeric compositions for use therein
TW334450B (en) Preparation of an aqueous polymer dispersion
AU3528889A (en) Preparation of water-soluble polymers
NZ512015A (en) Printing inks comprising a branched vinyl resin

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed