GB964406A - Melt spinning of isotactic polypropylene - Google Patents

Melt spinning of isotactic polypropylene

Info

Publication number
GB964406A
GB964406A GB7636/62A GB763662A GB964406A GB 964406 A GB964406 A GB 964406A GB 7636/62 A GB7636/62 A GB 7636/62A GB 763662 A GB763662 A GB 763662A GB 964406 A GB964406 A GB 964406A
Authority
GB
United Kingdom
Prior art keywords
temperature
yarn
intrinsic viscosity
range
spinning
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
GB7636/62A
Inventor
Richard William Harold Benson
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
Priority to BE628987D priority Critical patent/BE628987A/xx
Priority to NL289452D priority patent/NL289452A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB7636/62A priority patent/GB964406A/en
Priority to US260330A priority patent/US3233023A/en
Priority to CH243663A priority patent/CH435542A/en
Priority to AT154663A priority patent/AT241010B/en
Priority to DE19631435493 priority patent/DE1435493A1/en
Priority to GB25032/63A priority patent/GB1018851A/en
Publication of GB964406A publication Critical patent/GB964406A/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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • D01D5/23—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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

964,406. Spinning polypropylene. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 18, 1963 [Feb. 27, 1962], No. 7636/62. Heading B5B. Isotactic polypropylene filaments having a spontaneously developed helically crimped form are produced by melt spinning the polymer at such a temperature and at such a throughput and the intrinsic viscosity of the polymer being such that the intrinsic viscosity of the spun yarn is in the range 1.0 to 3.0, preferably 1.5 to 2.5, and that the birefringence of the spun yarn is between 10 x 10<SP>-3</SP> and 25 x 10<SP>-3</SP> and thereafter allowing the yarn to relax freely. The spun yarn may be drawn 1.2 to 4.0 times its original length before being allowed to relax. The stretched yarn thereafter being allowed to relax freely and quickly. The polymer before melt spinning may have an intrinsic viscosity between 1.0 and 6.0. The spinning temperature may be between 165‹ C. and 320‹ C. The relaxed helically crimped yarn may be maintained in the relaxed state at 100‹ to 140‹ C. for a further period of, for example, 20 minutes, to stabilize the crimp. When a drawing step is used the temperature of the heated pin, roller or other device whereon drawing takes place may be adjusted to a temperature within the range about 10‹ C. to about 140‹ C. The preferred drawing temperature is within the range of about 80‹ C. to about 100‹ C. Specifications 810,023 and 818,100 are referred to.
GB7636/62A 1962-02-27 1962-02-27 Melt spinning of isotactic polypropylene Expired GB964406A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE628987D BE628987A (en) 1962-02-27
NL289452D NL289452A (en) 1962-02-27
GB7636/62A GB964406A (en) 1962-02-27 1962-02-27 Melt spinning of isotactic polypropylene
US260330A US3233023A (en) 1962-02-27 1963-02-21 Spinning of polypropylene
CH243663A CH435542A (en) 1962-02-27 1963-02-26 Process for the production of threads or fibers with helical crimping from isotactic polypropylene
AT154663A AT241010B (en) 1962-02-27 1963-02-27 Process for the production of fibers or threads from isotactic polypropylene
DE19631435493 DE1435493A1 (en) 1962-02-27 1963-02-27 Process for spinning polypropylene
GB25032/63A GB1018851A (en) 1962-02-27 1963-06-24 Bulky isotactic polypropylene yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7636/62A GB964406A (en) 1962-02-27 1962-02-27 Melt spinning of isotactic polypropylene

Publications (1)

Publication Number Publication Date
GB964406A true GB964406A (en) 1964-07-22

Family

ID=9836916

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7636/62A Expired GB964406A (en) 1962-02-27 1962-02-27 Melt spinning of isotactic polypropylene
GB25032/63A Expired GB1018851A (en) 1962-02-27 1963-06-24 Bulky isotactic polypropylene yarns

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB25032/63A Expired GB1018851A (en) 1962-02-27 1963-06-24 Bulky isotactic polypropylene yarns

Country Status (6)

Country Link
US (1) US3233023A (en)
AT (1) AT241010B (en)
BE (1) BE628987A (en)
DE (1) DE1435493A1 (en)
GB (2) GB964406A (en)
NL (1) NL289452A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330897A (en) * 1961-02-07 1967-07-11 Chemcell 1963 Ltd Production of fibers of improved elastic recovery
US3432590A (en) * 1963-07-10 1969-03-11 Nat Plastic Products Co Inc Process for spinning elastic polypropylene fibers
GB1085808A (en) * 1964-02-04 1967-10-04 Mitsubishi Rayon Co Composite polypropylene fibers and methods for producing the same
GB1145818A (en) * 1967-02-28 1969-03-19 Asahi Chemical Ind Process for producing crimped polypropylene fibres
US4193961A (en) * 1978-04-04 1980-03-18 Kling-Tecs, Inc. Method of extruding polypropylene yarn
US4265849A (en) * 1979-05-29 1981-05-05 Phillips Petroleum Company Method for producing multifilament thermoplastic yarn having latent crimp
US4430852A (en) * 1979-11-13 1984-02-14 Phillips Petroleum Company Polyolefin products and methods of making
US4384098A (en) * 1981-01-13 1983-05-17 Phillips Petroleum Company Filamentary polypropylene and method of making
US5622772A (en) * 1994-06-03 1997-04-22 Kimberly-Clark Corporation Highly crimpable spunbond conjugate fibers and nonwoven webs made therefrom

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB827409A (en) * 1957-06-03 1960-02-03 Ici Ltd Production of polypropylene filaments
NL276457A (en) * 1959-05-12
FR1297364A (en) * 1960-06-15 1962-06-29 British Nylon Spinners Ltd Production of crimped filaments
US3093444A (en) * 1961-07-10 1963-06-11 Du Pont Process of preparing a helically crimped polypropylene filament

Also Published As

Publication number Publication date
GB1018851A (en) 1966-02-02
BE628987A (en)
DE1435493A1 (en) 1969-02-06
US3233023A (en) 1966-02-01
AT241010B (en) 1965-06-25
NL289452A (en)

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