GB1243787A - Production of polyhexamethylene adipamide filaments by melt spinning - Google Patents

Production of polyhexamethylene adipamide filaments by melt spinning

Info

Publication number
GB1243787A
GB1243787A GB162169A GB162169A GB1243787A GB 1243787 A GB1243787 A GB 1243787A GB 162169 A GB162169 A GB 162169A GB 162169 A GB162169 A GB 162169A GB 1243787 A GB1243787 A GB 1243787A
Authority
GB
United Kingdom
Prior art keywords
pipes
melt
sec
polyhexamethylene adipamide
melt spinning
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
GB162169A
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
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1243787A publication Critical patent/GB1243787A/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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • 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
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/28—Preparatory processes
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Polyamides (AREA)

Abstract

1,243,787. Melt spinning polyhexamethylene adipamide. BADISCHE ANILIN- & SODAFABRIK A.G. 10 Jan., 1969 [11 Jan., 1968], No. 1621/69. Heading B5B. In the melt spinning of polyhexamethylene adipamide by passing it at a temperature of 265‹ to 320‹ C., preferably 280-295‹C., under pressure through distributer pipes and spinnerets the melt is conveyed through the pipes at a velocity of at least 0À35 cm./sec., preferably 0À43 to 1À15 cm./sec. Velocities of up to 2À0 and even up to 6À0 cm./sec. have proved to be suitable. The molecular weight of the polymer may be 12,500 to 18,500 and its relative viscosity 2À1 to 2À8 using a solution containing 1 gram of the polymer per 100 ml. of solution, the solvent being 96% by weight sulphuric acid and the viscosities of the solution and solvent being determined at 25‹ C. The distributer pipes advantageously have a circular crosssection of diameter 0À8 to 1À6 cm. and a length of 150 to 260 cm. The melt is generally forced through the pipes at a gauge pressure of 20 to 100 atmospheres. The passage of the melt through the distributer pipes at a velocity of at least 0À35 cm./sec. prevents decomposition of the polymer and the formation of deposits on the walls of the pipes.
GB162169A 1968-01-11 1969-01-10 Production of polyhexamethylene adipamide filaments by melt spinning Expired GB1243787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681710609 DE1710609A1 (en) 1968-01-11 1968-01-11 Process for the production of threads from polyamides

Publications (1)

Publication Number Publication Date
GB1243787A true GB1243787A (en) 1971-08-25

Family

ID=5689264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB162169A Expired GB1243787A (en) 1968-01-11 1969-01-10 Production of polyhexamethylene adipamide filaments by melt spinning

Country Status (4)

Country Link
BE (1) BE726798A (en)
DE (1) DE1710609A1 (en)
FR (1) FR2000140A1 (en)
GB (1) GB1243787A (en)

Also Published As

Publication number Publication date
DE1710609A1 (en) 1972-04-13
BE726798A (en) 1969-07-14
FR2000140A1 (en) 1969-08-29

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