GB851611A - Process for the production of filamentary material from linear crystalline high polymers of propylene - Google Patents

Process for the production of filamentary material from linear crystalline high polymers of propylene

Info

Publication number
GB851611A
GB851611A GB9677/57A GB967757A GB851611A GB 851611 A GB851611 A GB 851611A GB 9677/57 A GB9677/57 A GB 9677/57A GB 967757 A GB967757 A GB 967757A GB 851611 A GB851611 A GB 851611A
Authority
GB
United Kingdom
Prior art keywords
filaments
propylene
polypropylene
solvent
diphenyl
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
GB9677/57A
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 GB851611A publication Critical patent/GB851611A/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
    • D01D5/06—Wet spinning methods
    • 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

Abstract

Filaments are produced by extruding a homogeneous solution of a linear crystallizable high polymer of propylene through a nozzle, volatilizing the solvent from the filaments thus formed and stretching them at an elevated temperature. The polypropylene may be prepared by the low-pressure polymerization of propylene in the presence of catalysts prepared from organo-metallic compounds and compounds of metals of Group IVA, VA and VIA of the Periodic Table and preferably has an intrinsic viscosity of 0,5-5, as measured in solution in tetrahydronaphthalene at 135 DEG C. Solutions containing 15-80% by weight of polypropylene are preferably used, suitable solvents being hydrocarbons, e.g. the various fractions of petroleum, petroleum jelly, paraffin, toluene, xylene, tetrahydronaphthalene, decahydronaphthalene, mixtures of diphenyl and diphenyl ether, halogenated hydrocarbons, e.g. tetrachloroethane, chlorobenzene, orthodichlorobenzene, alpha-chloro-naphthalene and ethylene dibromide, ketanes, e.g. methyl-ethyl-ketane, cyclopentanone and cyclohexanone, cetyl alcohol, cyclohexanol, butyl acetate, isoamyl acetate, ethylene glycol, triethylene glycol, butylene glycol, nitrobenzene, benzonitrile and thiophene. The polypropylene is preferably dissolved in the solvent at 100 DEG to 170 DEG C. and extruded in that temperature range. Stabilizers, e.g. diphenyl ethyl phosphite, dibutyl-tin dilaurate and dibutyltin dibutyl mercaptide may be added in an amount of 0,05 to 0,5% based on the weight of the solution. The solvent may be removed from the filaments by evaporation in a stream of hot gas, e.g. air or nitrogen, and the filaments are preferably stretched at 80-150 DEG C. with a stretch ratio of 1 : 3 to 1 : 12.
GB9677/57A 1956-03-30 1957-03-25 Process for the production of filamentary material from linear crystalline high polymers of propylene Expired GB851611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT352780X 1956-03-30

Publications (1)

Publication Number Publication Date
GB851611A true GB851611A (en) 1960-10-19

Family

ID=11241191

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9678/57A Expired GB822080A (en) 1956-03-30 1957-03-25 Articles of manufacture from linear high polymers of propylene and process for their preparation
GB9677/57A Expired GB851611A (en) 1956-03-30 1957-03-25 Process for the production of filamentary material from linear crystalline high polymers of propylene

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9678/57A Expired GB822080A (en) 1956-03-30 1957-03-25 Articles of manufacture from linear high polymers of propylene and process for their preparation

Country Status (7)

Country Link
BE (2) BE556252A (en)
CH (2) CH352780A (en)
DE (2) DE1094918B (en)
FR (2) FR1170921A (en)
GB (2) GB822080A (en)
IT (1) IT561304A (en)
NL (1) NL215863A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203750A (en) * 1961-08-18 1965-08-31 Sandoz Ltd Process for dyeing shaped articles of polymers of olefinic unsaturated compounds
US3332732A (en) * 1963-06-05 1967-07-25 Exxon Research Engineering Co Method of dyeing polyolefin fibers
US3504076A (en) * 1967-04-06 1970-03-31 Du Pont Cooling of flash spinning cell atmosphere

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017238A (en) * 1960-04-07 1962-01-16 Hercules Powder Co Ltd Method for solvent spinning polyolefins
DE1504432C3 (en) * 1961-04-20 1974-09-19 Kalle Ag, 6202 Wiesbaden-Biebrich Process for the production of flat polyolefin films
GB9908163D0 (en) * 1999-04-09 1999-06-02 Dyno Ind Asa Process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203750A (en) * 1961-08-18 1965-08-31 Sandoz Ltd Process for dyeing shaped articles of polymers of olefinic unsaturated compounds
US3332732A (en) * 1963-06-05 1967-07-25 Exxon Research Engineering Co Method of dyeing polyolefin fibers
US3504076A (en) * 1967-04-06 1970-03-31 Du Pont Cooling of flash spinning cell atmosphere

Also Published As

Publication number Publication date
BE556252A (en)
DE1094918B (en) 1960-12-15
NL215863A (en)
CH352780A (en) 1961-03-15
FR1174049A (en) 1959-03-05
FR1170921A (en) 1959-01-20
DE1088664B (en) 1960-09-08
BE556253A (en)
GB822080A (en) 1959-10-21
IT561304A (en)
CH353122A (en) 1961-03-31

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