ES8305799A1 - Procedimiento para la saponificacion alcalina de (co) poli-acrilonitrilo. - Google Patents

Procedimiento para la saponificacion alcalina de (co) poli-acrilonitrilo.

Info

Publication number
ES8305799A1
ES8305799A1 ES513003A ES513003A ES8305799A1 ES 8305799 A1 ES8305799 A1 ES 8305799A1 ES 513003 A ES513003 A ES 513003A ES 513003 A ES513003 A ES 513003A ES 8305799 A1 ES8305799 A1 ES 8305799A1
Authority
ES
Spain
Prior art keywords
aqueous
copolymers
degrees
heated
polyacrylonitrile
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
ES513003A
Other languages
English (en)
Other versions
ES513003A0 (es
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.)
Sanofi Aventis Deutschland GmbH
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella AG
Cassella Farbwerke Mainkur 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 Cassella AG, Cassella Farbwerke Mainkur AG filed Critical Cassella AG
Publication of ES8305799A1 publication Critical patent/ES8305799A1/es
Publication of ES513003A0 publication Critical patent/ES513003A0/es
Granted 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

PROCEDIMIENTO PARA LA SAPONIFICACION ALCALINA DE (CO)POLI-ACRILONITRILO, PARA PREPARAR SOLUCIONES ACUOSAS HOMOGENEAS DE POLIMEROS Y COPOLIMEROS DE ACRILONITRILO SAPONIFICADO O PARCIALMENTE SAPONIFICADO. CONSISTE EN AGREGAR UNA DISPERSION ACUOSA DE POLIMEROS O COPOLIMEROS, BAJO CONTINUA AGITACION, A UNA SOLUCION ACUOSA DE HIDROXIDO ALCALINO CALENTADA ENTRE 70 Y 90 GRADOS Y, UNA VEZ REALIZADA LA ADICION, SE CALIENTA LA MEZCLA, BAJO AGITACION, HASTA UNA TEMPERATURA DE 90 A 110 GRADOS, DURANTE EL TIEMPO NECESARIO PARA QUE SE SEPARE LA CANTIDAD CALCULADA DE AMONIACO.
ES513003A 1981-06-12 1982-06-11 Procedimiento para la saponificacion alcalina de (co) poli-acrilonitrilo. Granted ES513003A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813123290 DE3123290A1 (de) 1981-06-12 1981-06-12 Verbessertes verfahren zur alkalischen verseifung von pan

Publications (2)

Publication Number Publication Date
ES8305799A1 true ES8305799A1 (es) 1983-04-16
ES513003A0 ES513003A0 (es) 1983-04-16

Family

ID=6134519

Family Applications (1)

Application Number Title Priority Date Filing Date
ES513003A Granted ES513003A0 (es) 1981-06-12 1982-06-11 Procedimiento para la saponificacion alcalina de (co) poli-acrilonitrilo.

Country Status (7)

Country Link
EP (1) EP0067362B1 (es)
JP (1) JPS57212204A (es)
AT (1) ATE21398T1 (es)
BR (1) BR8203423A (es)
DE (2) DE3123290A1 (es)
ES (1) ES513003A0 (es)
ZA (1) ZA824124B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619721A1 (de) * 1986-06-12 1987-12-17 Wolff Walsrode Ag Verfahren zur herstellung wasserloeslicher copolymerisate und deren verwendung als schlichtmittel
DE3922201A1 (de) * 1989-07-06 1991-01-17 Bayer Ag Verfahren zur herstellung von schwachsauren kationenaustauschharzen
DE19600163A1 (de) * 1996-01-04 1997-07-10 Bayer Ag Verfahren zur kontinuierlichen Herstellung von superabsorbierenden Polymerisaten aus PAN-Emulsionen
JP3982046B2 (ja) 1997-04-16 2007-09-26 ソニー株式会社 高分子凝集剤
EP1348717B1 (en) * 1997-04-16 2008-07-16 Sony Corporation Method for producing a high molecular flocculant
DE19731627A1 (de) * 1997-07-23 1999-01-28 Degussa Granulate, enthaltend Titansilikalit-l
DE10019757A1 (de) * 2000-04-20 2001-10-25 Bayer Ag Verfahren zur Herstellung von superabsorbierenden Polymeren aus Polyacrylnitril-Fällungspolymerisaten
DE10322441A1 (de) * 2003-05-19 2004-12-09 Bayer Chemicals Ag Verfahren zur alkalischen Verseifung vernetzter Acrylnitrilperlpolymerisate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812317A (en) * 1953-08-19 1957-11-05 Monsanto Chemicals Hydrolyzed polyacrylonitrile polymers and process of preparing same
US3419502A (en) * 1964-10-01 1968-12-31 Nalco Chemical Co Process for dispersing solids in aqueous systems
DE2903267A1 (de) * 1979-01-29 1980-08-07 Hoechst Ag Verfahren zur herstellung von acrylpolymeren mit hoher wasserquellfaehigkeit und deren verwendung

Also Published As

Publication number Publication date
ES513003A0 (es) 1983-04-16
ZA824124B (en) 1983-04-27
JPS57212204A (en) 1982-12-27
DE3123290A1 (de) 1982-12-30
ATE21398T1 (de) 1986-08-15
EP0067362B1 (de) 1986-08-13
DE3272558D1 (en) 1986-09-18
BR8203423A (pt) 1983-06-07
EP0067362A1 (de) 1982-12-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991108