GB1391501A - Poly p-phenylene terephthalamide fibres - Google Patents

Poly p-phenylene terephthalamide fibres

Info

Publication number
GB1391501A
GB1391501A GB1957572A GB1957572A GB1391501A GB 1391501 A GB1391501 A GB 1391501A GB 1957572 A GB1957572 A GB 1957572A GB 1957572 A GB1957572 A GB 1957572A GB 1391501 A GB1391501 A GB 1391501A
Authority
GB
United Kingdom
Prior art keywords
fibres
less
orientation angle
crystallite size
poly
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
GB1957572A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26835968&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1391501(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1391501A publication Critical patent/GB1391501A/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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D01F6/605—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides

Abstract

1391501 Poly (p-phenylene terephthalamide) fibres E I DU PONT DE NEMOURS & CO 27 April 1972 [28 April 1971 17 Aug 1971] 19575/72 Heading B5B A poly (p-phenylene terephthalamide) fibre is disclosed, having a density of no less than 1À40 g./cm.<SP>3</SP>, a lateral birefringence (as herein defined) of from 0À022 to 0À065, crystalline regions with an apparent crystallite size of 58 to 125Š and an orientation angle of 6 to 13; the ratio of the apparent crystallite size to the orientation angle is at least 6Š/degree. The polymer of the fibre must have an inherent viscosity of at least 4À0; fibres may be produced from this by spinning solutions of it in sulphuric acid (at least 98% H 2 SO 4 ), chlorosulphuric acid or fluorosulphuric acid, into a coagulant such as water. The fibres of the invention are prepared from such of these fibres as have a density of no less than 1À40 g./cm.<SP>3</SP>, or orientation angle of less than 22‹ C. a lateral birefringence of at least 0À02, and an apparent crystallite size of less than 52Š. These fibres are maintained under tension in a zone of a temperature of at least 150‹ C. for a length of time sufficient to give the necessary values of the apparent crystallite size and the orientation angle. The tension is at least 0À5 g./denier feet less than the tension required to draw the fibre 1À03 times its original length at the temperature used. The time of heating is such that neither the original tensile strength, nor the inherent viscosity clearance decrease by more than 30%.
GB1957572A 1971-04-28 1972-04-27 Poly p-phenylene terephthalamide fibres Expired GB1391501A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13820971A 1971-04-28 1971-04-28
US17251471A 1971-08-17 1971-08-17

Publications (1)

Publication Number Publication Date
GB1391501A true GB1391501A (en) 1975-04-23

Family

ID=26835968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1957572A Expired GB1391501A (en) 1971-04-28 1972-04-27 Poly p-phenylene terephthalamide fibres

Country Status (15)

Country Link
JP (1) JPS5514167B1 (en)
AR (1) AR198167A1 (en)
AU (1) AU463869B2 (en)
BE (1) BE782796A (en)
CA (1) CA1013525A (en)
CH (1) CH531056A (en)
DE (2) DE2219646B2 (en)
ES (1) ES402142A1 (en)
FR (1) FR2134581B1 (en)
GB (1) GB1391501A (en)
IL (1) IL39188A (en)
IT (1) IT968393B (en)
LU (1) LU65247A1 (en)
NL (1) NL172570B (en)
SE (1) SE382081B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962559A2 (en) * 1998-06-03 1999-12-08 Teijin Limited Wholly aromatic polyamide fibers, a sheet comprising same and method of producing the sheet
EP0994215A1 (en) * 1998-10-15 2000-04-19 Teijin Limited Wholly aromatic polyamide fiber synthetic paper sheet
SG80079A1 (en) * 1998-10-15 2001-04-17 Teijin Ltd Wholly aromatic polyamide fiber synthetic paper sheet
WO2013096395A1 (en) * 2011-12-20 2013-06-27 E. I. Du Pont De Nemours And Company High linear density, high modulus, high tenacity yarns and methods for making the yarns

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL39187A (en) * 1971-04-28 1976-02-29 Du Pont Polyamide fibers and films and their preparation
JPS55122011A (en) * 1979-03-13 1980-09-19 Asahi Chem Ind Co Ltd Poly-p-phenylene terephthalamide fiber having high young's modulus and its preparation
JPS55122012A (en) * 1979-03-13 1980-09-19 Asahi Chem Ind Co Ltd Poly-p-phenylene terephthalamide fiber having improved fatigue resistance and its production
KR860001141B1 (en) * 1984-06-29 1986-08-16 한국과학기술원 Manufacturing process of high polymer a mixture textile

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US138210A (en) * 1873-04-22 Improvement in hay and cotton presses
US2318704A (en) * 1940-04-02 1943-05-11 Celanese Corp Production of artificial filaments, foils, and like shaped articles
GB796544A (en) * 1954-10-13 1958-06-11 British Celanese Improvements in the manufacture of artificial filaments and like products
US3063966A (en) * 1958-02-05 1962-11-13 Du Pont Process of making wholly aromatic polyamides
BE565268A (en) * 1957-02-28
GB877855A (en) * 1958-07-22 1961-09-20 Wilcolator Co Improvements in gas oven control
US3094511A (en) * 1958-11-17 1963-06-18 Du Pont Wholly aromatic polyamides
FR1242289A (en) * 1958-12-19 1960-09-23 Du Pont Synthetic fiber crystallization process
GB877885A (en) * 1958-12-19 1961-09-20 Du Pont Improvements relating to the treatment of aromatic polyamide structures
US3079219A (en) * 1960-12-06 1963-02-26 Du Pont Process for wet spinning aromatic polyamides
US3154610A (en) * 1961-05-31 1964-10-27 Celanese Corp Process of wet spinning polyamides and prevention of gel formation
NL128614C (en) * 1962-09-11
US3354125A (en) * 1963-07-29 1967-11-21 Monsanto Co Polymers from diaminobenzanilides
US3414645A (en) * 1964-06-19 1968-12-03 Monsanto Co Process for spinning wholly aromatic polyamide fibers
DE1910426U (en) 1964-10-20 1965-02-18 Wills K G Laurinwerk WRITING DEVICE.
CH467362A (en) * 1965-02-05 1969-02-28 Nippon Rayon Kk Process for improving the properties of polyamide yarns
CA928440A (en) * 1967-12-27 1973-06-12 I. Bair Thomas Fibres of aromatic para-oriented polyterephthalamides
IT947029B (en) * 1968-03-15 1973-05-21 Kyowa Hakko Kogyo Kk PROCEDURE FOR PREPARING THE L ISOLEUCINE BY STOPPING
DE1810426B2 (en) * 1968-06-12 1980-08-28 E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) Optically anisotropic mass containing aromatic polyamides
US3600269A (en) * 1968-07-29 1971-08-17 Monsanto Co Novel fiber reinforced matrix composites
IL39187A (en) * 1971-04-28 1976-02-29 Du Pont Polyamide fibers and films and their preparation
US3869430A (en) * 1971-08-17 1975-03-04 Du Pont High modulus, high tenacity poly(p-phenylene terephthalamide) fiber
US3796693A (en) * 1971-08-23 1974-03-12 H Morgan High modulus aromatic poly(amide hydrazide) fibers
US3723380A (en) * 1972-02-04 1973-03-27 Monsanto Co Aromatic amide-hydrazide copolymer
US3767756A (en) * 1972-06-30 1973-10-23 Du Pont Dry jet wet spinning process
NL7904496A (en) * 1979-06-08 1980-12-10 Akzo Nv FIBER, WIRE BUNDLE AND ROPE OF POLY-P-PHENYLENE GRADE-LANGUAGE AMIDE.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962559A2 (en) * 1998-06-03 1999-12-08 Teijin Limited Wholly aromatic polyamide fibers, a sheet comprising same and method of producing the sheet
EP0962559A3 (en) * 1998-06-03 2000-01-26 Teijin Limited Wholly aromatic polyamide fibers, a sheet comprising same and method of producing the sheet
US6280843B1 (en) 1998-06-03 2001-08-28 Teijin Limited Wholly aromatic polyamide fibers, a sheet comprising same and method of producing the sheet
EP0994215A1 (en) * 1998-10-15 2000-04-19 Teijin Limited Wholly aromatic polyamide fiber synthetic paper sheet
SG80079A1 (en) * 1998-10-15 2001-04-17 Teijin Ltd Wholly aromatic polyamide fiber synthetic paper sheet
US6407017B1 (en) 1998-10-15 2002-06-18 Teijin Limited Wholly aromatic polyamide fiber synthetic paper sheet
CN1303285C (en) * 1998-10-15 2007-03-07 帝人株式会社 Completely aromatic-polyamide-fiber synthesized paper sheet
WO2013096395A1 (en) * 2011-12-20 2013-06-27 E. I. Du Pont De Nemours And Company High linear density, high modulus, high tenacity yarns and methods for making the yarns

Also Published As

Publication number Publication date
AR198167A1 (en) 1974-06-07
DE2219646A1 (en) 1972-11-09
AU4153672A (en) 1973-11-01
ES402142A1 (en) 1975-11-16
NL172570B (en) 1983-04-18
DE2219646B2 (en) 1980-01-03
IL39188A (en) 1976-02-29
FR2134581B1 (en) 1978-06-02
IT968393B (en) 1974-03-20
FR2134581A1 (en) 1972-12-08
IL39188A0 (en) 1972-06-28
NL7205837A (en) 1972-10-31
JPS5514167B1 (en) 1980-04-14
DE2219646C3 (en) 1988-11-10
CH531056A (en) 1972-11-30
CA1013525A (en) 1977-07-12
DE2266038C3 (en) 1989-07-20
SE382081B (en) 1976-01-12
AU463869B2 (en) 1975-08-07
BE782796A (en) 1972-08-16
LU65247A1 (en) 1972-07-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years