GB1440946A - Extraction of polylactams - Google Patents

Extraction of polylactams

Info

Publication number
GB1440946A
GB1440946A GB4016473A GB4016473A GB1440946A GB 1440946 A GB1440946 A GB 1440946A GB 4016473 A GB4016473 A GB 4016473A GB 4016473 A GB4016473 A GB 4016473A GB 1440946 A GB1440946 A GB 1440946A
Authority
GB
United Kingdom
Prior art keywords
zone
water
sub
polylactam
extraction
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
GB4016473A
Other languages
English (en)
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 GB1440946A publication Critical patent/GB1440946A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/46—Post-polymerisation treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Polyamides (AREA)
GB4016473A 1972-08-30 1973-08-24 Extraction of polylactams Expired GB1440946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2242641A DE2242641C3 (de) 1972-08-30 1972-08-30 Verfahren zum kontinuierlichen Extrahieren von Polylactamen

Publications (1)

Publication Number Publication Date
GB1440946A true GB1440946A (en) 1976-06-30

Family

ID=5855008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4016473A Expired GB1440946A (en) 1972-08-30 1973-08-24 Extraction of polylactams

Country Status (16)

Country Link
US (1) US4051113A (US07582779-20090901-C00044.png)
JP (1) JPS5026595B2 (US07582779-20090901-C00044.png)
AR (1) AR198003A1 (US07582779-20090901-C00044.png)
BE (1) BE804236A (US07582779-20090901-C00044.png)
CA (1) CA1011897A (US07582779-20090901-C00044.png)
DD (1) DD105815A5 (US07582779-20090901-C00044.png)
DE (1) DE2242641C3 (US07582779-20090901-C00044.png)
DK (1) DK135725C (US07582779-20090901-C00044.png)
FR (1) FR2197922B1 (US07582779-20090901-C00044.png)
GB (1) GB1440946A (US07582779-20090901-C00044.png)
IE (1) IE38137B1 (US07582779-20090901-C00044.png)
IT (1) IT998426B (US07582779-20090901-C00044.png)
LU (1) LU68321A1 (US07582779-20090901-C00044.png)
NL (1) NL176466C (US07582779-20090901-C00044.png)
PL (1) PL92485B1 (US07582779-20090901-C00044.png)
SU (1) SU516356A3 (US07582779-20090901-C00044.png)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622463C3 (de) * 1976-05-20 1985-06-05 Basf Ag, 6700 Ludwigshafen Verfahren zur Reinigung von crotonsäurehaltigen Copolymerisaten
DE3026538A1 (de) * 1980-07-12 1982-02-11 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen extraktion von caprolactam als solches und dessen oligomere enthaltenden waessrigen loesungen
US4360662A (en) * 1980-11-19 1982-11-23 Celanese Corporation Continuous countercurrent extraction process for removing water-soluble impurities from water immiscible polymer solutions
US4764588A (en) * 1987-03-09 1988-08-16 Gaf Corporation Insoluble vinyl lactam clarifiers
US5496918A (en) * 1991-09-23 1996-03-05 Alliedsignal Inc. Process for improving the properties of polymers
DE19607723C2 (de) * 1996-02-29 2002-10-24 Polymer Eng Gmbh Verfahren und Vorrichtung zur kontinuierlichen Extraktion von polymeren Granulaten
DE19752182A1 (de) * 1997-11-25 1999-05-27 Basf Ag Verfahren zur kontinuierlichen Extraktion von Polyamid
FR2846333B1 (fr) * 2002-10-23 2004-12-03 Atofina Augmentation du point de fusion et de l'enthalpie de fusion des polyamides par un traitement a l'eau
US7468405B2 (en) * 2002-10-23 2008-12-23 Atofina Increase in the melting point and the enthalpy of melting of polyamides by a water treatment
DE102015201969A1 (de) * 2015-02-04 2016-08-04 Thyssenkrupp Ag Verfahren und Vorrichtung zur Herstellung von Polyamiden mit optimierter Strömungsführung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245964A (en) * 1962-11-13 1966-04-12 Allied Chem Continuous extraction of poly-e-caproamide
US3374207A (en) * 1964-11-12 1968-03-19 Inventa Ag Continuous process for the extraction of monomers and oligomers from highly polymerized caprolactam granules
DE1770097B2 (de) * 1968-03-30 1974-04-18 Basf Ag, 6700 Ludwigshafen Verfahren zum kontinuierlichen Extrahieren von körnigen Polyamiden
US3598537A (en) * 1968-06-05 1971-08-10 Metallgesellschaft Ag Continuous liquid extraction of solubles from solids

Also Published As

Publication number Publication date
FR2197922B1 (US07582779-20090901-C00044.png) 1977-02-25
LU68321A1 (US07582779-20090901-C00044.png) 1973-10-30
FR2197922A1 (US07582779-20090901-C00044.png) 1974-03-29
DE2242641A1 (de) 1974-04-11
JPS5026595B2 (US07582779-20090901-C00044.png) 1975-09-02
CA1011897A (en) 1977-06-07
IT998426B (it) 1976-01-20
IE38137B1 (en) 1978-01-04
DD105815A5 (US07582779-20090901-C00044.png) 1974-05-12
DE2242641C3 (de) 1980-06-19
BE804236A (fr) 1974-02-28
SU516356A3 (ru) 1976-05-30
NL176466B (nl) 1984-11-16
AR198003A1 (es) 1974-05-24
DE2242641B2 (de) 1979-10-04
PL92485B1 (US07582779-20090901-C00044.png) 1977-04-30
JPS4953994A (US07582779-20090901-C00044.png) 1974-05-25
IE38137L (en) 1974-02-28
DK135725B (da) 1977-06-13
DK135725C (da) 1977-11-21
US4051113A (en) 1977-09-27
NL7311834A (US07582779-20090901-C00044.png) 1974-03-04
NL176466C (nl) 1985-04-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee