CH389903A - Process for reducing the monomer and obligomer content of polymerized caprolactam - Google Patents

Process for reducing the monomer and obligomer content of polymerized caprolactam

Info

Publication number
CH389903A
CH389903A CH324260A CH324260A CH389903A CH 389903 A CH389903 A CH 389903A CH 324260 A CH324260 A CH 324260A CH 324260 A CH324260 A CH 324260A CH 389903 A CH389903 A CH 389903A
Authority
CH
Switzerland
Prior art keywords
obligomer
monomer
reducing
content
polymerized caprolactam
Prior art date
Application number
CH324260A
Other languages
German (de)
Inventor
Joachim Zimmer Hans
Natus Dietrich Dr Dipl-Phys
Ferdinand Dipl-Phys Geisl Hans
Langanke Helmut
Original Assignee
Zimmer Hans J
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 Zimmer Hans J filed Critical Zimmer Hans J
Publication of CH389903A publication Critical patent/CH389903A/en

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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/103—De-aerating
    • 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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14—Lactams
    • C08G69/16—Preparatory processes
    • 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
    • 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
CH324260A 1960-01-29 1960-03-23 Process for reducing the monomer and obligomer content of polymerized caprolactam CH389903A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ7781A DE1218109B (en) 1960-01-29 1960-01-29 Manufacture of threads from polymerized caprolactam

Publications (1)

Publication Number Publication Date
CH389903A true CH389903A (en) 1965-03-31

Family

ID=7620259

Family Applications (1)

Application Number Title Priority Date Filing Date
CH324260A CH389903A (en) 1960-01-29 1960-03-23 Process for reducing the monomer and obligomer content of polymerized caprolactam

Country Status (5)

Country Link
US (1) US3287322A (en)
CH (1) CH389903A (en)
DE (1) DE1218109B (en)
GB (1) GB942676A (en)
NL (1) NL260591A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129671C (en) * 1963-07-23 1900-01-01
BE671101A (en) * 1964-10-20
US4310659A (en) * 1980-04-21 1982-01-12 Allied Corporation Two-stage hydrolysis process for the preparation of nylon 6
JP4491848B2 (en) * 1998-04-03 2010-06-30 東レ株式会社 Method for producing polyamide
EP2585516B1 (en) 2010-06-25 2023-01-25 Nanovis Inc. Method for producing nanosurfaces with nano, micron, and/or submicron structures on a polymer
CN113336980B (en) * 2020-03-02 2022-12-27 中国科学院化学研究所 Self-reinforcing and toughening polyamide material and preparation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735840A (en) * 1956-02-21 Vacuum pump
US2687552A (en) * 1949-11-07 1954-08-31 Inventa Ag Process and apparatus for direct spinning of polyamides
US2719776A (en) * 1949-11-23 1955-10-04 Inventa Ag Elimination of monomers from lactampolymerization products
US2753594A (en) * 1952-05-03 1956-07-10 Inventa Ag Apparatus for use in the melt-spinning of synthetic polymers
US2731081A (en) * 1953-04-13 1956-01-17 Ind Rayon Corp Method for the removal of monomers, etc. from molten polymers
US3177181A (en) * 1960-11-14 1965-04-06 Foster Grant Co Inc Two stage vacuum devolatilization to purify polyamides

Also Published As

Publication number Publication date
GB942676A (en) 1963-11-27
NL260591A (en)
US3287322A (en) 1966-11-22
DE1218109B (en) 1966-06-02

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