GB664099A - Method and device for spinning molten artificial high molecular weight linear polymeric material - Google Patents

Method and device for spinning molten artificial high molecular weight linear polymeric material

Info

Publication number
GB664099A
GB664099A GB14571/49A GB1457149A GB664099A GB 664099 A GB664099 A GB 664099A GB 14571/49 A GB14571/49 A GB 14571/49A GB 1457149 A GB1457149 A GB 1457149A GB 664099 A GB664099 A GB 664099A
Authority
GB
United Kingdom
Prior art keywords
orifice
orifices
spinning
widening
molecular weight
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
GB14571/49A
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.)
ELITE SDRUZENE TOVARNY PUNCOCH
ZD Y PRE CHEMICKU VYROBU
Original Assignee
ELITE SDRUZENE TOVARNY PUNCOCH
ZD Y PRE CHEMICKU VYROBU
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 ELITE SDRUZENE TOVARNY PUNCOCH, ZD Y PRE CHEMICKU VYROBU filed Critical ELITE SDRUZENE TOVARNY PUNCOCH
Publication of GB664099A publication Critical patent/GB664099A/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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Multicomponent Fibers (AREA)

Abstract

Molten artificial high molecular weight linear polymeric material is spun by extruding the molten mass under pressure through a conical orifice or orifices widening towards the outlet. The orifices may be formed in a spinneret and may be in axial alignment, each orifice widening conically in the spinning direction and each orifice following the first orifice having a greater mean diameter than the preceeding orifice. The material to be spun may be produced by polymerization of one component or by copolymerization of two or more components or by polycondensation of two or more components. They may be polyamides, polyesters, or polyurethanes. The use of extrusion orifices according to the invention is said to prevent gas bubbles from penetrating into the fibre and to enable spinning to be carried out with a single spinning pump instead of two with a byepass and relief valve, as is customary. The Specification as open to inspection under Sect. 91 comprises also extrusion devices or spinnerets in which a number of orifices are in axial alignment, each orifice following the first orifice having a greater mean diameter than the preceding orifice, as described in the Specification in its accepted form, but the orifices, instead of widening in the spinning direction, are either cylindrical or converge in the spinning direction. This subject-matter does not appear in the Specification as accepted.
GB14571/49A 1948-06-01 1949-05-31 Method and device for spinning molten artificial high molecular weight linear polymeric material Expired GB664099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS664099X 1948-06-01

Publications (1)

Publication Number Publication Date
GB664099A true GB664099A (en) 1952-01-02

Family

ID=5454505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14571/49A Expired GB664099A (en) 1948-06-01 1949-05-31 Method and device for spinning molten artificial high molecular weight linear polymeric material

Country Status (1)

Country Link
GB (1) GB664099A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376747A (en) * 1980-12-11 1983-03-15 Union Carbide Corporation Process for controlling the cross-sectional structure of mesophase pitch derived fibers
US4480977A (en) * 1980-12-11 1984-11-06 Union Carbide Corporation Apparatus for controlling the cross-sectional structure of mesophase pitch derived fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376747A (en) * 1980-12-11 1983-03-15 Union Carbide Corporation Process for controlling the cross-sectional structure of mesophase pitch derived fibers
US4480977A (en) * 1980-12-11 1984-11-06 Union Carbide Corporation Apparatus for controlling the cross-sectional structure of mesophase pitch derived fibers

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