GB711956A - Improvements relating to processes of and apparatus for spinning polyamides - Google Patents

Improvements relating to processes of and apparatus for spinning polyamides

Info

Publication number
GB711956A
GB711956A GB20689/50A GB2068950A GB711956A GB 711956 A GB711956 A GB 711956A GB 20689/50 A GB20689/50 A GB 20689/50A GB 2068950 A GB2068950 A GB 2068950A GB 711956 A GB711956 A GB 711956A
Authority
GB
United Kingdom
Prior art keywords
melt
evaporator
heated
molecular weight
low molecular
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
GB20689/50A
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of GB711956A publication Critical patent/GB711956A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/103—De-aerating
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
GB20689/50A 1949-11-07 1950-08-21 Improvements relating to processes of and apparatus for spinning polyamides Expired GB711956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH711956X 1949-11-07

Publications (1)

Publication Number Publication Date
GB711956A true GB711956A (en) 1954-07-14

Family

ID=4530827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20689/50A Expired GB711956A (en) 1949-11-07 1950-08-21 Improvements relating to processes of and apparatus for spinning polyamides

Country Status (5)

Country Link
BE (1) BE497507A (ro)
CH (1) CH265481A (ro)
FR (1) FR1055774A (ro)
GB (1) GB711956A (ro)
NL (1) NL86634C (ro)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177181A (en) * 1960-11-14 1965-04-06 Foster Grant Co Inc Two stage vacuum devolatilization to purify polyamides
WO2020043320A1 (en) * 2018-08-28 2020-03-05 Technip Zimmer Gmbh Method and device for the production of polyamide 6 with low extract content

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731081A (en) * 1953-04-13 1956-01-17 Ind Rayon Corp Method for the removal of monomers, etc. from molten polymers
DE1030993B (de) * 1954-02-15 1958-05-29 Thueringisches Kunstfaserwerk Verfahren zum Entfernen niedermolekularer Anteile aus polymerisiertem ªŠ-Caprolactam
DE1097676B (de) * 1955-07-30 1961-01-19 Phil Karl Elbel Dipl Chem Dr Verfahren zur kontinuierlichen Herstellung von direkt oder indirekt haertbaren Kondensationskunstharzen
DE2503308C2 (de) * 1975-01-28 1983-03-10 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von monomerenarmer Polycaprolactam-Schmelze

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177181A (en) * 1960-11-14 1965-04-06 Foster Grant Co Inc Two stage vacuum devolatilization to purify polyamides
WO2020043320A1 (en) * 2018-08-28 2020-03-05 Technip Zimmer Gmbh Method and device for the production of polyamide 6 with low extract content
CN112566764A (zh) * 2018-08-28 2021-03-26 德希尼布吉玛有限公司 生产具有低萃取物含量的聚酰胺-6的方法以及装置
US11066518B2 (en) 2018-08-28 2021-07-20 Technip Zimmer Gmbh Method and device for the production of polyamide 6 with low extract content
CN112566764B (zh) * 2018-08-28 2022-08-23 德希尼布吉玛有限公司 生产具有低萃取物含量的聚酰胺-6的方法以及装置

Also Published As

Publication number Publication date
NL86634C (ro)
FR1055774A (fr) 1954-02-22
BE497507A (ro)
CH265481A (de) 1949-12-15

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