GB1094933A - Self-crimping filaments - Google Patents

Self-crimping filaments

Info

Publication number
GB1094933A
GB1094933A GB16543/65A GB1654365A GB1094933A GB 1094933 A GB1094933 A GB 1094933A GB 16543/65 A GB16543/65 A GB 16543/65A GB 1654365 A GB1654365 A GB 1654365A GB 1094933 A GB1094933 A GB 1094933A
Authority
GB
United Kingdom
Prior art keywords
filaments
molecular weight
polymer
polymers
self
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
GB16543/65A
Inventor
John Raymond Brayford
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB16543/65A priority Critical patent/GB1094933A/en
Priority to US540852A priority patent/US3399259A/en
Priority to DE19661660376 priority patent/DE1660376A1/en
Priority to NL6605271A priority patent/NL6605271A/xx
Priority to ES0325732A priority patent/ES325732A1/en
Priority to BE679786D priority patent/BE679786A/xx
Priority to FR58331A priority patent/FR1476482A/en
Priority to GB4725767A priority patent/GB1183410A/en
Publication of GB1094933A publication Critical patent/GB1094933A/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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor

Abstract

1,094,933. Producing self-crimping polypropylene filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 4, 1966 [April 20, 1965], No. 16543/65. Heading B5B. Self-crimping composite polypropylene filaments are produced by conjugate melt spinning of two propylene polymers having the same intrinsic viscosity, but different molecular weight distributions, and subsequently drawing and/or relaxing the tension in the filaments. The " dispersion coefficient " of at least one component must be at least 6À5 and the dispersion coefficients of the polymers may differ by at least 0À5. The component polymers may have a viscosity of at least 1À0. The unrelaxed spun filaments may be drawn 2-4 times their original length and the drawing may be effected by means of a snubbing surface heated to not over 100‹ C. The drawn filaments may be heat treated on the draw roll which is maintained at a temperature of up to 100‹ C. The crimped filaments may be stabilized by heat treatment at 100.. 140‹ C. The " dispersion coefficient ", which is an expression of the molecular weight distribution of a propylene polymer is defined as the ratio of the weight average molecular weight to the number average molecular weight of the polymer, these values being determined by light scattering and membrane osmometry techniques described in detail in the Specification. The intrinsic viscosities of the polymer are measured in decalin solution at 135‹ C., the units of intrinsic viscosity being decilitres/gram.
GB16543/65A 1965-04-20 1965-04-20 Self-crimping filaments Expired GB1094933A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB16543/65A GB1094933A (en) 1965-04-20 1965-04-20 Self-crimping filaments
US540852A US3399259A (en) 1965-04-20 1966-04-07 Method for producing bicomponent polypropylene filaments
DE19661660376 DE1660376A1 (en) 1965-04-20 1966-04-20 Process for the production of self-curling threads
NL6605271A NL6605271A (en) 1965-04-20 1966-04-20
ES0325732A ES325732A1 (en) 1965-04-20 1966-04-20 Procedure for the production of authorized polypropylene filaments. (Machine-translation by Google Translate, not legally binding)
BE679786D BE679786A (en) 1965-04-20 1966-04-20
FR58331A FR1476482A (en) 1965-04-20 1966-04-20 Self-crimping polypropylene filaments
GB4725767A GB1183410A (en) 1965-04-20 1967-10-17 Crimped Polypropylene Filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16543/65A GB1094933A (en) 1965-04-20 1965-04-20 Self-crimping filaments

Publications (1)

Publication Number Publication Date
GB1094933A true GB1094933A (en) 1967-12-13

Family

ID=10079212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16543/65A Expired GB1094933A (en) 1965-04-20 1965-04-20 Self-crimping filaments

Country Status (6)

Country Link
US (1) US3399259A (en)
BE (1) BE679786A (en)
DE (1) DE1660376A1 (en)
ES (1) ES325732A1 (en)
GB (1) GB1094933A (en)
NL (1) NL6605271A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1085808A (en) * 1964-02-04 1967-10-04 Mitsubishi Rayon Co Composite polypropylene fibers and methods for producing the same
US3536802A (en) * 1965-08-02 1970-10-27 Kanebo Ltd Method for spinning composite filaments
US3497585A (en) * 1966-06-09 1970-02-24 Monsanto Co Self-crimping filament process
US3509013A (en) * 1966-09-26 1970-04-28 Hercules Inc Composite polypropylene filament
US3533904A (en) * 1966-10-19 1970-10-13 Hercules Inc Composite polypropylene filaments having a high degree of crimp
US3507947A (en) * 1967-11-06 1970-04-21 Chemcell Ltd Melt extrusion process and spinnerettes
US3639154A (en) * 1968-07-20 1972-02-01 Kanegafuchi Spinning Co Ltd Process for manufacturing fibrous structure having excellent recovery from extension by treatment with polyorganosiloxane and a polyethylene glycol or derivative thereof
US3671620A (en) * 1968-07-27 1972-06-20 Kurashiki Rayon Co Process for the manufacture of composite filaments and yarns
US3904730A (en) * 1969-01-28 1975-09-09 Mitsui Petrochemical Ind Process for the preparation of polypropylene crimped fibers
JPS5235776B1 (en) * 1969-01-31 1977-09-10
US4189338A (en) * 1972-11-25 1980-02-19 Chisso Corporation Method of forming autogenously bonded non-woven fabric comprising bi-component fibers
NL181632C (en) * 1976-12-23 1987-10-01 Minnesota Mining & Mfg ELECTRIC FILTER AND METHOD FOR MANUFACTURING THAT.
US4115620A (en) * 1977-01-19 1978-09-19 Hercules Incorporated Conjugate filaments
CA2129496A1 (en) 1994-04-12 1995-10-13 Mary Lou Delucia Strength improved single polymer conjugate fiber webs
US5622772A (en) * 1994-06-03 1997-04-22 Kimberly-Clark Corporation Highly crimpable spunbond conjugate fibers and nonwoven webs made therefrom
US5597645A (en) * 1994-08-30 1997-01-28 Kimberly-Clark Corporation Nonwoven filter media for gas
WO1996013319A1 (en) * 1994-10-31 1996-05-09 Kimberly-Clark Worldwide, Inc. High density nonwoven filter media
US5709735A (en) * 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium
US6287689B1 (en) 1999-12-28 2001-09-11 Solutia Inc. Low surface energy fibers
US6630087B1 (en) 2001-11-16 2003-10-07 Solutia Inc. Process of making low surface energy fibers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225534A (en) * 1961-03-31 1965-12-28 Du Pont Differential shrinkage yarn
BE620778A (en) * 1961-07-28
DE1435648A1 (en) * 1961-09-01 1969-02-06 Schweizerische Viscose Process for the production of threads containing composite single threads from chemically identical polyamides
US3209402A (en) * 1962-03-07 1965-10-05 Celanese Corp Apparatus for producing multicom-ponent filaments and yarns
NL279868A (en) * 1963-07-15

Also Published As

Publication number Publication date
DE1660376A1 (en) 1971-04-08
NL6605271A (en) 1966-10-21
BE679786A (en) 1966-10-20
ES325732A1 (en) 1967-06-16
US3399259A (en) 1968-08-27

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