EP0013541B1 - Procédé pour la fabrication de fibres de polymères thermoplastiques d'acrylonitrile - Google Patents

Procédé pour la fabrication de fibres de polymères thermoplastiques d'acrylonitrile Download PDF

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Publication number
EP0013541B1
EP0013541B1 EP79810189A EP79810189A EP0013541B1 EP 0013541 B1 EP0013541 B1 EP 0013541B1 EP 79810189 A EP79810189 A EP 79810189A EP 79810189 A EP79810189 A EP 79810189A EP 0013541 B1 EP0013541 B1 EP 0013541B1
Authority
EP
European Patent Office
Prior art keywords
polymerisate
acrylonitrile
fibers
acrylic
acrylonitril
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
EP79810189A
Other languages
German (de)
English (en)
Other versions
EP0013541A1 (fr
Inventor
Guido Dr.-Chem. Stampa
Gero Dr. Dipl.-Ing. Büttiker
Peter Dr.-Chem Meier
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.)
Amrotex AG
Original Assignee
Amrotex 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 Amrotex AG filed Critical Amrotex AG
Priority to AT79810189T priority Critical patent/ATE1956T1/de
Publication of EP0013541A1 publication Critical patent/EP0013541A1/fr
Application granted granted Critical
Publication of EP0013541B1 publication Critical patent/EP0013541B1/fr
Expired legal-status Critical Current

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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
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent

Definitions

  • the invention relates to a process for producing fibers from a polymer of acrylonitrile with esters of acrylic and / or methacrylic acid, which has a molar concentration of the acrylonitrile units in the range from 50 to 96%.
  • Polyester and polyamide products that can be spliced into fibers are also unsuitable because they are not alkali-proof.
  • FR-A-1 208 402 and FR-A-1 559 289 describe polymers or copolymers of acrylonitrile, polyacrylic acid esters and polymethacrylic acid esters, such as polymethyl methacrylate, respectively.
  • homogeneous terpolymers made of acrylonitrile, styrene and N-o-chlorophenylmaleic acid amide which are processed into films and fibers using the wet process.
  • these fibers are not suitable for the purposes mentioned.
  • the aim of the invention is to produce such fiber material.
  • the process for producing fibers from a thermoplastic polymer of acrylonitrile with esters of acrylic and / or methacrylic acid which has a molar concentration of the acrylonitrile units in the range from 50 to 96%, characterized in that the polymer is a Graft polymer of acrylonitrile / butadiene and / or isoprene or of acrylic acrylates is used, the polymer is extruded into tapes or hoses, stretched uniaxially at temperatures between 100 and 150 ° C and fanned out after cooling.
  • a graft polymer of the type defined above is extruded into a hose with a diameter of 16/14 mm at a temperature of 170 to 185 ° C.
  • This tube is then stretched three times to eleven times shortly after the extruder, i.e. still in the thermoplastic range, and after the withdrawal unit in the thermoelastic range at a temperature of 100 to 150 ° C. by means of a rolling mill and then spliced.
  • the tendency to splice increases in parallel with the increase and speed of stretching. It is preferable to stretch four to eight times. The fineness of the individual splicing fibers increases with the increase in the stretching distance.
  • Such extruded, stretched and spliced hoses or. Tapes can be used as continuous fibers or cut in stacks of 1 to 10 mm in length as reinforcement material.
  • the polymer can contain fillers and pigments, such as carbon black, Ti0 2 , chalk, blast furnace slag, etc.
  • the manufacture of the hydraulically bound components themselves can be carried out according to known methods, which are not unlike the manufacturing processes for paper and asbestos cement sheets and shaped pieces, e.g. B. by slurrying the fibers with binders such as cement and plenty of water, forming a nonwoven fabric on sieving and drying and pressing the nonwoven.
  • binders such as cement and plenty of water
  • the mixing ratio between fibers and cement is depending on the fiber length, respectively. depending on the requirements placed on the finished product, generally between 1: 3 and 1: 15.
  • the cut pieces of tubing can also be spliced into the individual fibers only when they are mixed with the hydraulic binders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Reinforced Plastic Materials (AREA)
  • Polymerisation Methods In General (AREA)

Claims (1)

  1. Procédé pour la fabrication de fibres d'un polymerisat thermoplastique de l'acrylonitrile avec des esters de l'acide acrylique et/ou méthacrylique, ce polymérisat ayant une concentration molaire des unités d'acrylonitrile dans la gamme de 50 à 95%, caractérisé en ce qu'on utilise comme polymérisat un polymérisat greffé d'acrylonitrile/ester d'acide acrylique ou méthacrylique greffé sur un copolymérisat d'acrylonitrile/butadiène et/ou -isoprène ou d'acrylates, qu'on extrude ce polymérisat en ruban ou en tuyaux, on les étend uniaxialement à des températures entre 100 et 150° C et on sépare les fibres après refroidissement.
EP79810189A 1979-01-04 1979-12-28 Procédé pour la fabrication de fibres de polymères thermoplastiques d'acrylonitrile Expired EP0013541B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79810189T ATE1956T1 (de) 1979-01-04 1979-12-28 Verfahren zur herstellung von fasern aus thermoplastischen polymerisaten des acrylnitrils.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH41/79 1979-01-04
CH4179 1979-01-04

Publications (2)

Publication Number Publication Date
EP0013541A1 EP0013541A1 (fr) 1980-07-23
EP0013541B1 true EP0013541B1 (fr) 1982-12-08

Family

ID=4177986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79810189A Expired EP0013541B1 (fr) 1979-01-04 1979-12-28 Procédé pour la fabrication de fibres de polymères thermoplastiques d'acrylonitrile

Country Status (4)

Country Link
EP (1) EP0013541B1 (fr)
AT (1) ATE1956T1 (fr)
DE (1) DE2964235D1 (fr)
DK (1) DK4080A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG73992A1 (en) * 1995-12-18 2000-07-18 Standard Oil Co Melt spun acrylonitrile olefinically unsaturated fibers and a process to make fibers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB891943A (fr) * 1957-06-11
NL282596A (fr) * 1961-08-29
GB1107724A (en) * 1964-06-03 1968-03-27 Chemstrand Ltd Improvements in or relating to the manufacture of paper
US3364102A (en) * 1964-07-27 1968-01-16 Dow Chemical Co Method for making paper-like and related non-woven products from acrylonitrile polymer fibers
FR1428992A (fr) * 1965-03-29 1966-02-18 Polymer Proc Res Inst Procédé et dispositif pour la fabrication continue de fibrilles
FR1559289A (fr) * 1967-09-20 1969-03-07

Also Published As

Publication number Publication date
DE2964235D1 (en) 1983-01-13
EP0013541A1 (fr) 1980-07-23
DK4080A (da) 1980-07-05
ATE1956T1 (de) 1982-12-15

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