DE3323940A1 - Process for the purification of polymers - Google Patents

Process for the purification of polymers

Info

Publication number
DE3323940A1
DE3323940A1 DE19833323940 DE3323940A DE3323940A1 DE 3323940 A1 DE3323940 A1 DE 3323940A1 DE 19833323940 DE19833323940 DE 19833323940 DE 3323940 A DE3323940 A DE 3323940A DE 3323940 A1 DE3323940 A1 DE 3323940A1
Authority
DE
Germany
Prior art keywords
purification
polymers
extractant
acrylamides
meth
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.)
Withdrawn
Application number
DE19833323940
Other languages
German (de)
Inventor
Gero Dr Braun
Hermann Dr Schmitz
Klaus Dr Kuehlein
Rudolf Prof Dr Steiner
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to DE19833323940 priority Critical patent/DE3323940A1/en
Publication of DE3323940A1 publication Critical patent/DE3323940A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22After-treatment of expandable particles; Forming foamed products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/02Solvent extraction of solids
    • B01D11/0203Solvent extraction of solids with a supercritical fluid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/26Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • C08F6/28Purification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/28Post-polymerisation treatments
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G85/00General processes for preparing compounds provided for in this subclass
    • C08G85/002Post-polymerisation treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
    • C08J2325/00Characterised by the use 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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02Homopolymers or copolymers of hydrocarbons
    • C08J2325/04Homopolymers or copolymers of styrene
    • C08J2325/06Polystyrene
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/54Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Abstract

The invention relates to a process for the purification of polymers by reducing the content of low-molecular-weight products by treating the polymer with a gas in the supercritical stage as extractant. In particular in the case of poly(meth)acrylamides, the process according to the invention offers a number of advantages.
DE19833323940 1983-07-02 1983-07-02 Process for the purification of polymers Withdrawn DE3323940A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833323940 DE3323940A1 (en) 1983-07-02 1983-07-02 Process for the purification of polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833323940 DE3323940A1 (en) 1983-07-02 1983-07-02 Process for the purification of polymers

Publications (1)

Publication Number Publication Date
DE3323940A1 true DE3323940A1 (en) 1985-01-10

Family

ID=6203025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833323940 Withdrawn DE3323940A1 (en) 1983-07-02 1983-07-02 Process for the purification of polymers

Country Status (1)

Country Link
DE (1) DE3323940A1 (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233661A1 (en) * 1986-01-23 1987-08-26 Stamicarbon B.V. Process for purifying a thermoplastic polymer
US4695621A (en) * 1985-12-23 1987-09-22 The Dow Chemical Company Method for reducing residual monomers from oversized fat imbibing copolymer beads
US4703105A (en) * 1985-12-23 1987-10-27 The Dow Chemical Company Extraction of residues from styrenic polymers
EP0269583A2 (en) * 1986-11-21 1988-06-01 COBARR S.p.A. A method for producing high molecular weight polyester resin
FR2611207A1 (en) * 1987-02-19 1988-08-26 Rhone Poulenc Sante Process for the purification of styrene copolymers with vinylpyridines by extraction using supercritical gas
EP0289132A1 (en) * 1987-03-27 1988-11-02 Asahi Denka Kogyo Kabushiki Kaisha Method of removing solvent from chlorinated resin
EP0300981A1 (en) * 1987-07-24 1989-01-25 COBARR S.p.A. A method for the reduction of impurities in polyester resins
EP0322687A2 (en) * 1987-12-28 1989-07-05 Schwarz Pharma Ag Method for the manufacture of a product having at least one substance embedded in a carrier
EP0334314A2 (en) * 1988-03-23 1989-09-27 Mitsubishi Gas Chemical Company, Inc. Method for producing purified polycarbonate resins
FR2638098A1 (en) * 1988-10-26 1990-04-27 Toyo Engineering Corp PROCESS FOR EXTRACTING IMPURITIES CONTAINED IN POWDER MATERIAL
EP0374879A2 (en) * 1988-12-23 1990-06-27 Toyo Engineering Corporation Method for extraction of impurities in polymer
EP0376064A2 (en) * 1988-12-15 1990-07-04 Toyo Engineering Corporation Method for producing a foamed resin
FR2641198A1 (en) * 1988-10-26 1990-07-06 Toyo Engineering Corp Process for extracting impurities present in a material in the form of powder II
EP0435328A2 (en) * 1989-12-28 1991-07-03 Dow Corning Toray Silicone Company, Limited Method for reducing the quantity of siloxane oligomer in organopolysiloxane moldings
EP0442679A1 (en) * 1990-02-16 1991-08-21 Rohm And Haas Company Purification of latex
US5049328A (en) * 1990-07-02 1991-09-17 Arco Chemical Technology, Inc. Purification, impregnation and foaming of polymer particles with carbon dioxide
EP0456246A2 (en) * 1990-05-10 1991-11-13 Boehringer Ingelheim Kg Process for manufacturing solventless/residual monomerless polymers, to be used in processes such as injection, extrusion or meltspinning
DE4120437A1 (en) * 1990-06-21 1992-01-09 Toyo Engineering Corp METHOD FOR THE EXTRACTION OF IMPURITIES IN A POLYMER DISPERSION
US5094741A (en) * 1990-03-02 1992-03-10 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
WO1993003064A1 (en) * 1991-07-29 1993-02-18 M. & G. Ricerche S.P.A. Process for the separation of the aqueous phase from cellulose acetate
US5232707A (en) * 1989-07-10 1993-08-03 Syntex (U.S.A.) Inc. Solvent extraction process
US5240603A (en) * 1990-03-02 1993-08-31 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
US5322626A (en) * 1990-03-02 1994-06-21 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
WO1995018834A1 (en) * 1994-01-07 1995-07-13 Minnesota Mining And Manufacturing Company Supercritical fluid extraction involving hydrofluoroalkanes
US5569510A (en) * 1992-06-10 1996-10-29 Sinco Engineering S.P.A. Process for the production of polyester resins for fibers
WO1997005194A1 (en) * 1995-08-01 1997-02-13 Cf Technologies, Incorporated Method and apparatus for separating polymer from a plastic, and the resulting separated polymer
WO1997020866A1 (en) * 1995-12-04 1997-06-12 Basf Aktiengesellschaft Process for the removal of residual solvents and residual monomers from powdered polymerisates
WO1997034334A1 (en) * 1996-03-15 1997-09-18 Valence Technology, Inc. Apparatus and method of preparing electrochemical cells
WO1997040081A1 (en) * 1996-04-23 1997-10-30 Joachim Brimmer Ingenieurbüro Anlagenbau Gmbh Process for separating organic monomers or auxiliaries
US6160086A (en) * 1998-07-30 2000-12-12 3M Innovative Properties Company Process for removing impurities from polymers
US6180031B1 (en) * 1994-01-31 2001-01-30 Bausch & Lomb Incorporated Treatment of contact lenses with supercritical fluid
EP1467854A1 (en) * 2001-12-12 2004-10-20 Depuy Products, Inc. Orthopaedic device and method for making same
WO2006023129A1 (en) * 2004-08-05 2006-03-02 Mallinckrodt Baker, Inc. Preparation of ultrapure polymeric articles
EP2072541A2 (en) * 2005-12-20 2009-06-24 Novartis Ag Process for removing residual volatile monomers from a polymer in powder form
DE102015215387A1 (en) * 2015-08-12 2017-02-16 Evonik Degussa Gmbh Process for the preparation of polyalkenamers for packaging applications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1007062B (en) * 1955-12-01 1957-04-25 Hoechst Ag Process for obtaining polymerization products of ethylene
GB1013319A (en) * 1963-08-30 1965-12-15 Rexall Drug Chemical Process for preparing predominantly crystalline alpha-olefin polymers
DE2127618C2 (en) * 1971-06-03 1973-06-14 Hag Ag Process for obtaining hop extracts
DE2005293C3 (en) * 1970-02-05 1974-01-10 Studiengesellschaft Kohle Mbh, 4330 Muelheim
DE2043537C3 (en) * 1970-09-02 1975-08-07 Studiengesellschaft Kohle Mbh, 4330 Muelheim
DE2716797A1 (en) * 1974-10-04 1977-10-27 Little Inc A Regeneration of a polymeric adsorbent - by contacting with a supercritical fluid to remove the adsorbate by dissolution

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1007062B (en) * 1955-12-01 1957-04-25 Hoechst Ag Process for obtaining polymerization products of ethylene
GB1013319A (en) * 1963-08-30 1965-12-15 Rexall Drug Chemical Process for preparing predominantly crystalline alpha-olefin polymers
DE2005293C3 (en) * 1970-02-05 1974-01-10 Studiengesellschaft Kohle Mbh, 4330 Muelheim
DE2043537C3 (en) * 1970-09-02 1975-08-07 Studiengesellschaft Kohle Mbh, 4330 Muelheim
DE2127618C2 (en) * 1971-06-03 1973-06-14 Hag Ag Process for obtaining hop extracts
DE2716797A1 (en) * 1974-10-04 1977-10-27 Little Inc A Regeneration of a polymeric adsorbent - by contacting with a supercritical fluid to remove the adsorbate by dissolution

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Angewandte Chemie, 90, 799-802, 1978 *
Chem.-Ing.-Techn. 53/1981, Nr. 7, S.529 ff *
Chemical Engineers' Handbook, J.H. Perry 5. Edition, 1963, Mc Graw Hill Book Company, N.Y., S.3-100 und S.3-301 *

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695621A (en) * 1985-12-23 1987-09-22 The Dow Chemical Company Method for reducing residual monomers from oversized fat imbibing copolymer beads
US4703105A (en) * 1985-12-23 1987-10-27 The Dow Chemical Company Extraction of residues from styrenic polymers
EP0233661A1 (en) * 1986-01-23 1987-08-26 Stamicarbon B.V. Process for purifying a thermoplastic polymer
EP0269583A2 (en) * 1986-11-21 1988-06-01 COBARR S.p.A. A method for producing high molecular weight polyester resin
EP0269583A3 (en) * 1986-11-21 1990-01-31 Cobarr S.P.A. A method for producing high molecular weight polyester resin
EP0281464A1 (en) * 1987-02-19 1988-09-07 Rhone-Poulenc Sante Process for the purification of styrene-vinyl pyridine copolymers by extraction, using a supercritical gas
FR2611207A1 (en) * 1987-02-19 1988-08-26 Rhone Poulenc Sante Process for the purification of styrene copolymers with vinylpyridines by extraction using supercritical gas
EP0289132A1 (en) * 1987-03-27 1988-11-02 Asahi Denka Kogyo Kabushiki Kaisha Method of removing solvent from chlorinated resin
EP0300981A1 (en) * 1987-07-24 1989-01-25 COBARR S.p.A. A method for the reduction of impurities in polyester resins
EP0322687A3 (en) * 1987-12-28 1990-04-11 Schwarz Pharma Ag Method for the manufacture of a product having at least one substance embedded in a carrier
EP0322687A2 (en) * 1987-12-28 1989-07-05 Schwarz Pharma Ag Method for the manufacture of a product having at least one substance embedded in a carrier
EP0334314A3 (en) * 1988-03-23 1990-07-25 Mitsubishi Gas Chemical Company, Inc. Method for producing purified polycarbonate resins
EP0334314A2 (en) * 1988-03-23 1989-09-27 Mitsubishi Gas Chemical Company, Inc. Method for producing purified polycarbonate resins
FR2638098A1 (en) * 1988-10-26 1990-04-27 Toyo Engineering Corp PROCESS FOR EXTRACTING IMPURITIES CONTAINED IN POWDER MATERIAL
FR2641198A1 (en) * 1988-10-26 1990-07-06 Toyo Engineering Corp Process for extracting impurities present in a material in the form of powder II
EP0376064A2 (en) * 1988-12-15 1990-07-04 Toyo Engineering Corporation Method for producing a foamed resin
EP0376064A3 (en) * 1988-12-15 1990-12-05 Toyo Engineering Corporation Method for producing a foamed resin
US5133913A (en) * 1988-12-15 1992-07-28 Toyo Engineering Corporation Method for producing a foamed resin using a blowing and extracting agent
EP0374879A3 (en) * 1988-12-23 1991-08-14 Toyo Engineering Corporation Method for extraction of impurities in polymer
EP0374879A2 (en) * 1988-12-23 1990-06-27 Toyo Engineering Corporation Method for extraction of impurities in polymer
US5232707A (en) * 1989-07-10 1993-08-03 Syntex (U.S.A.) Inc. Solvent extraction process
EP0435328A2 (en) * 1989-12-28 1991-07-03 Dow Corning Toray Silicone Company, Limited Method for reducing the quantity of siloxane oligomer in organopolysiloxane moldings
EP0435328A3 (en) * 1989-12-28 1991-11-06 Dow Corning Toray Silicone Company, Limited Method for reducing the quantity of siloxane oligomer in organopolysiloxane moldings
US5167883A (en) * 1989-12-28 1992-12-01 Dow Corning Toray Silicone Company, Ltd. Method for reducing the quantity of siloxane oligomer in organopolysiloxane moldings
EP0442679A1 (en) * 1990-02-16 1991-08-21 Rohm And Haas Company Purification of latex
US5240603A (en) * 1990-03-02 1993-08-31 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
US5094741A (en) * 1990-03-02 1992-03-10 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
US5322626A (en) * 1990-03-02 1994-06-21 Hewlett-Packard Company Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids
EP0456246A3 (en) * 1990-05-10 1992-07-08 Boehringer Ingelheim Kg Process for manufacturing solventless/residual monomerless polymers, to be used in processes such as injection, extrusion or meltspinning
EP0456246A2 (en) * 1990-05-10 1991-11-13 Boehringer Ingelheim Kg Process for manufacturing solventless/residual monomerless polymers, to be used in processes such as injection, extrusion or meltspinning
DE4120437A1 (en) * 1990-06-21 1992-01-09 Toyo Engineering Corp METHOD FOR THE EXTRACTION OF IMPURITIES IN A POLYMER DISPERSION
EP0467551A2 (en) * 1990-07-02 1992-01-22 ARCO Chemical Technology, L.P. Purification, impregnation and foaming of polymer particles
US5049328A (en) * 1990-07-02 1991-09-17 Arco Chemical Technology, Inc. Purification, impregnation and foaming of polymer particles with carbon dioxide
EP0467551A3 (en) * 1990-07-02 1992-06-17 Arco Chemical Technology Inc. Purification, impregnation and foaming of polymer particles
US5667691A (en) * 1991-07-29 1997-09-16 Sinco Engineering S.P.A. Process for extracting water and acetic acid from the aqueous phase of cellulose acetate
WO1993003064A1 (en) * 1991-07-29 1993-02-18 M. & G. Ricerche S.P.A. Process for the separation of the aqueous phase from cellulose acetate
US5569510A (en) * 1992-06-10 1996-10-29 Sinco Engineering S.P.A. Process for the production of polyester resins for fibers
WO1995018834A1 (en) * 1994-01-07 1995-07-13 Minnesota Mining And Manufacturing Company Supercritical fluid extraction involving hydrofluoroalkanes
US5481058A (en) * 1994-01-07 1996-01-02 Minnesota Mining And Manufacturing Company Supercritical fluid extraction involving hydrofluoroalkanes
US6610221B2 (en) 1994-01-31 2003-08-26 Bausch & Lomb Incorporated Treatment of contact lenses with supercritical fluid
US6180031B1 (en) * 1994-01-31 2001-01-30 Bausch & Lomb Incorporated Treatment of contact lenses with supercritical fluid
US5739270A (en) * 1995-08-01 1998-04-14 Farmer; Peter H. Method and apparatus for separating polymer from a plastic, and the resulting separated polymer
WO1997005194A1 (en) * 1995-08-01 1997-02-13 Cf Technologies, Incorporated Method and apparatus for separating polymer from a plastic, and the resulting separated polymer
WO1997020866A1 (en) * 1995-12-04 1997-06-12 Basf Aktiengesellschaft Process for the removal of residual solvents and residual monomers from powdered polymerisates
WO1997034334A1 (en) * 1996-03-15 1997-09-18 Valence Technology, Inc. Apparatus and method of preparing electrochemical cells
US5690703A (en) * 1996-03-15 1997-11-25 Valence Technology, Inc Apparatus and method of preparing electrochemical cells
US5961671A (en) * 1996-03-15 1999-10-05 Valence Technology, Inc. Apparatus and method of preparing electrochemical cells
US6180755B1 (en) 1996-04-23 2001-01-30 Joachim Brimmer Ingenieurburo Anlagenbau Gmbh Process for separating organic monomers or auxiliaries
WO1997040081A1 (en) * 1996-04-23 1997-10-30 Joachim Brimmer Ingenieurbüro Anlagenbau Gmbh Process for separating organic monomers or auxiliaries
US6160086A (en) * 1998-07-30 2000-12-12 3M Innovative Properties Company Process for removing impurities from polymers
EP1467854A1 (en) * 2001-12-12 2004-10-20 Depuy Products, Inc. Orthopaedic device and method for making same
AU2002364530B2 (en) * 2001-12-12 2008-09-25 Depuy Products, Inc. Orthopaedic device and method for making same
EP1467854A4 (en) * 2001-12-12 2007-01-10 Depuy Products Inc Orthopaedic device and method for making same
WO2006023129A1 (en) * 2004-08-05 2006-03-02 Mallinckrodt Baker, Inc. Preparation of ultrapure polymeric articles
US7470767B2 (en) 2004-08-05 2008-12-30 Mallinckrodt Baker, Inc. Preparation of ultrapure polymeric articles
AU2005277901B2 (en) * 2004-08-05 2010-06-10 Avantor Performance Materials, Inc. Preparation of ultrapure polymeric articles
CN1993385B (en) * 2004-08-05 2010-08-18 马林克罗特贝克公司 Preparation of ultrapure polymeric articles
EP2072541A2 (en) * 2005-12-20 2009-06-24 Novartis Ag Process for removing residual volatile monomers from a polymer in powder form
EP2072541A3 (en) * 2005-12-20 2009-10-07 Novartis Ag Process for removing residual volatile monomers from a polymer in powder form
DE102015215387A1 (en) * 2015-08-12 2017-02-16 Evonik Degussa Gmbh Process for the preparation of polyalkenamers for packaging applications

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