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GB1343628A - Drawn polyester filaments and their production - Google Patents

Drawn polyester filaments and their production

Info

Publication number
GB1343628A
GB1343628A GB5992471A GB5992471A GB1343628A GB 1343628 A GB1343628 A GB 1343628A GB 5992471 A GB5992471 A GB 5992471A GB 5992471 A GB5992471 A GB 5992471A GB 1343628 A GB1343628 A GB 1343628A
Authority
GB
United Kingdom
Prior art keywords
filaments
drawn
polyester
prepared
orientation function
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
GB5992471A
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.)
Honeywell International Inc
Original Assignee
Allied Chemical Corp
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 Allied Chemical Corp filed Critical Allied Chemical Corp
Publication of GB1343628A publication Critical patent/GB1343628A/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
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

1343628 Drawing polyester filaments ALLIED CHEMICAL CORP 23 Dec 1971 [29 Jan 1971] 59924/71 Heading B5B Drawn filaments are prepared from a polyester of which at least 90% of the ester units are terephthalate units obtainable from terephthalic acid and a dihydric alcohol. The polyester has a number average molecular weight of at least 15,000. The filaments are drawn in one or more drawing steps and the drawn filaments shrunk at a temperature of 150-250‹ C. whilst being kept under tension so that they contract by from 10 to 25% of their drawn length. The filaments so prepared have a tensile strength of at least 6À8 gm. per denier, an ultimate elongation of at least 18%, a tenacity index greater than 30 grams/denier, a degree of crystallinity greater than 50%, a birefringence of from 0À158 to 0À170. a crystalline orientation function (fc) of from 0À887 to 0À902 and an amorphous orientation function (fa) of from 0.430 to 0À500 and a difference between fc and fa of at least 0À380. Examples illustrate the drawing of melt-spun polyethylene terephthalate filaments.
GB5992471A 1971-01-29 1971-12-23 Drawn polyester filaments and their production Expired GB1343628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11111171A 1971-01-29 1971-01-29

Publications (1)

Publication Number Publication Date
GB1343628A true GB1343628A (en) 1974-01-16

Family

ID=22336671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5992471A Expired GB1343628A (en) 1971-01-29 1971-12-23 Drawn polyester filaments and their production

Country Status (5)

Country Link
AU (1) AU3663371A (en)
DE (1) DE2203486A1 (en)
FR (1) FR2123444A1 (en)
GB (1) GB1343628A (en)
IT (1) IT948804B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195052A (en) 1976-10-26 1980-03-25 Celanese Corporation Production of improved polyester filaments of high strength possessing an unusually stable internal structure
US6015616A (en) * 1990-05-11 2000-01-18 Arteva North America S.A.R.L. Drawn polyester yarn having a high tenacity, a high modulus and a low shrinkage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101525A (en) * 1976-10-26 1978-07-18 Celanese Corporation Polyester yarn of high strength possessing an unusually stable internal structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195052A (en) 1976-10-26 1980-03-25 Celanese Corporation Production of improved polyester filaments of high strength possessing an unusually stable internal structure
US6015616A (en) * 1990-05-11 2000-01-18 Arteva North America S.A.R.L. Drawn polyester yarn having a high tenacity, a high modulus and a low shrinkage

Also Published As

Publication number Publication date
IT948804B (en) 1973-06-11
FR2123444A1 (en) 1972-09-08
DE2203486A1 (en) 1972-08-17
AU3663371A (en) 1973-06-14

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees