GB1066061A - Method of manufacturing polyester fibres having cavities - Google Patents

Method of manufacturing polyester fibres having cavities

Info

Publication number
GB1066061A
GB1066061A GB7763/64A GB776364A GB1066061A GB 1066061 A GB1066061 A GB 1066061A GB 7763/64 A GB7763/64 A GB 7763/64A GB 776364 A GB776364 A GB 776364A GB 1066061 A GB1066061 A GB 1066061A
Authority
GB
United Kingdom
Prior art keywords
filaments
polystyrene
materials
mixture
styrene
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
GB7763/64A
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.)
Kurashiki Rayon Co Ltd
Original Assignee
Kurashiki Rayon Co Ltd
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 Kurashiki Rayon Co Ltd filed Critical Kurashiki Rayon Co Ltd
Publication of GB1066061A publication Critical patent/GB1066061A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
    • D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters

Abstract

A mixture of a polyester or a copolymer containing a major proportion of polyester (the A-material) and at least 20% of a B-material consisting of a polymer of a cyclic vinyl compound or a copolymer containing at least 80% thereof is spun into filaments from which the B-material is then removed by solvent extraction to give porous polyester filaments. The polymer mixture may be made by mixing and melting the A- and B-materials or by polymerizing monomers of one or both the materials in situ. Specified A-materials are copolymers of dibasic acids or esters with a glycol, or copolycondensates containing, in addition to ester linkages, amide, urethane, ether or urea linkages. Exemplified B-material is polystyrene and specified B-materials are polymers of styrene, vinyl toluene, a -methyl styrene, dimethyl styrene, maleic anhydride, a -methyl-p-methyl styrene or copolymers of the above with methyl methacrylate, acrylonitrile, vinyl chloride, vinyl acetate or butadiene. Specified solvents for the B-material are benzene, toluene, xylene, ethylene dichloride, trichloro-ethylene, chloroform, tetrahydrofuran, dioxane and mixtures of the above with alcohols or ketones. In one example, a mixture of dimethyl terephthalate, ethylene glycol and zinc acetate and antimony oxide as catalysts is maintained at 190 DEG C. under nitrogen for 6 hours, then at 260-280 DEG C. for 30 minutes. Polystyrene, 35% by weight of dimethyl terephthalate, is then added and heating continued in vacuo for 7 hours to yield a mixture of polystyrene and polyethylene terephthalate. Filaments spun therefrom are extracted by toluene at 40 DEG C. for 1 hour to remove polystyrene, and the resulting microporous filaments are stretched. In other examples, filaments spun from melts comprising polyethylene terephthalate plus 5-60% polystyrene are extracted by benzene or trichloroethylene.ALSO:Porous filaments of polyethylene terephthalate are impregnated with (1) a 10% solution of uramin T 101 containing 0.2% diammonium hydrogen phosphate followed by heating at 140 DEG C or (2) a water-soluble emulsion containing 20% of polyvinyle chloride, the filaments then being heated and stretched. The crease resistance and wash and wear resistances are thereby improved.
GB7763/64A 1963-03-20 1964-02-25 Method of manufacturing polyester fibres having cavities Expired GB1066061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1477663 1963-03-20

Publications (1)

Publication Number Publication Date
GB1066061A true GB1066061A (en) 1967-04-19

Family

ID=11870441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7763/64A Expired GB1066061A (en) 1963-03-20 1964-02-25 Method of manufacturing polyester fibres having cavities

Country Status (2)

Country Link
DE (1) DE1291052B (en)
GB (1) GB1066061A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963304A (en) * 1988-09-26 1990-10-16 The Dow Chemical Company Process for preparing microporous membranes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963304A (en) * 1988-09-26 1990-10-16 The Dow Chemical Company Process for preparing microporous membranes

Also Published As

Publication number Publication date
DE1291052B (en) 1969-03-20

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