GB941199A - Fibres of crystalline polypropylene - Google Patents

Fibres of crystalline polypropylene

Info

Publication number
GB941199A
GB941199A GB3260762A GB3260762A GB941199A GB 941199 A GB941199 A GB 941199A GB 3260762 A GB3260762 A GB 3260762A GB 3260762 A GB3260762 A GB 3260762A GB 941199 A GB941199 A GB 941199A
Authority
GB
United Kingdom
Prior art keywords
fibres
spinneret
polypropylene
tinctorial
crystalline polypropylene
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
GB3260762A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB941199A publication Critical patent/GB941199A/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
    • D01D5/084—Heating filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

941,199. Spinning polypropylene. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Aug. 24, 1962 [Aug. 29, 1961], No. 32607/62. Heading B5B. In melt-spinning crystalline polypropylene, the fibres are heated to form 130‹ to 300‹ C. on leaving the spinneret but before stretching or stabilization and finishing. The preferred crystalline polypropylene has an intrinsic viscosity of 2 to 5, determined in tetrahydronaphthalene at 130‹ C. Preferably the polypropylene is extruded through spinneret holes having a length/diameter ratio higher than 1, and the resulting fibres heated by passing through a heated tubular column placed immediately beneath the spinneret, and having a diameter 2.5 cms. larger than the diameter of the array of spinneret holes and a length of 2 cms. to 1 metre. The extruded fibres are preferably subsequently stretched in a ratio between 1: 2 and 1: 10 at temperatures between 80‹ C. and 150‹ C. After stretching, the fibres may be subjected to thermal stabilization and finishing treatments. The crystalline polypropylene may be mixed with stabilizers, opacizers, organic or inorganic pigments, dyes or tinctorial modifiers. Preferred tinctorial modifiers are basic nitrogen compounds obtained by condensation of epichlorohydrin with amines. A preferred stabilizer is a mixture (0.02-2% by weight) of the polymer, of an aliphatic thioester, a dialkylphenol sulphide and calcium stearate. Fibres containing a tinctorial modifier may be subjected, before or after stretching, to the action of formaldehyde, diisocyanates or diepoxy compounds to render the modifier water insoluble.
GB3260762A 1961-08-29 1962-08-24 Fibres of crystalline polypropylene Expired GB941199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1572361 1961-08-29

Publications (1)

Publication Number Publication Date
GB941199A true GB941199A (en) 1963-11-06

Family

ID=11148181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3260762A Expired GB941199A (en) 1961-08-29 1962-08-24 Fibres of crystalline polypropylene

Country Status (7)

Country Link
BE (1) BE621817A (en)
DE (1) DE1469111A1 (en)
ES (1) ES280357A1 (en)
FI (1) FI40025C (en)
GB (1) GB941199A (en)
NL (1) NL282439A (en)
SE (1) SE305923B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025812A1 (en) * 1978-04-04 1981-04-01 Kling-Tecs,Inc. Method of extruding polypropylene yarn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025812A1 (en) * 1978-04-04 1981-04-01 Kling-Tecs,Inc. Method of extruding polypropylene yarn

Also Published As

Publication number Publication date
NL282439A (en)
FI40025C (en) 1968-09-10
SE305923B (en) 1968-11-11
BE621817A (en)
DE1469111A1 (en) 1968-11-14
ES280357A1 (en) 1963-03-16
FI40025B (en) 1968-05-31

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