EP0404145A3 - Mixed solvent for aramid spinning dopes - Google Patents

Mixed solvent for aramid spinning dopes Download PDF

Info

Publication number
EP0404145A3
EP0404145A3 EP19900111744 EP90111744A EP0404145A3 EP 0404145 A3 EP0404145 A3 EP 0404145A3 EP 19900111744 EP19900111744 EP 19900111744 EP 90111744 A EP90111744 A EP 90111744A EP 0404145 A3 EP0404145 A3 EP 0404145A3
Authority
EP
European Patent Office
Prior art keywords
mixed solvent
spinning dopes
aramid spinning
aramid
dopes
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.)
Granted
Application number
EP19900111744
Other languages
German (de)
French (fr)
Other versions
EP0404145B1 (en
EP0404145A2 (en
Inventor
William Cheng Uy
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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0404145A2 publication Critical patent/EP0404145A2/en
Publication of EP0404145A3 publication Critical patent/EP0404145A3/en
Application granted granted Critical
Publication of EP0404145B1 publication Critical patent/EP0404145B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

A room temperature anisotropic spinning solution and associated spinning process are disclosed for poly(p-phenylene terephthalamide) using a solvent mixture of chlorosulfuric acid and sulfuric acid of at least 100% concentration.
EP19900111744 1989-06-21 1990-06-21 Mixed solvent for aramid spinning dopes Expired - Lifetime EP0404145B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36910789A 1989-06-21 1989-06-21
US369107 1989-06-21

Publications (3)

Publication Number Publication Date
EP0404145A2 EP0404145A2 (en) 1990-12-27
EP0404145A3 true EP0404145A3 (en) 1991-09-25
EP0404145B1 EP0404145B1 (en) 1994-05-18

Family

ID=23454121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900111744 Expired - Lifetime EP0404145B1 (en) 1989-06-21 1990-06-21 Mixed solvent for aramid spinning dopes

Country Status (3)

Country Link
EP (1) EP0404145B1 (en)
JP (1) JPH0351311A (en)
CA (1) CA2019438A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767756A (en) * 1972-06-30 1973-10-23 Du Pont Dry jet wet spinning process
US3819587A (en) * 1969-05-23 1974-06-25 Du Pont Wholly aromatic carbocyclic polycarbonamide fiber having orientation angle of less than about 45{20

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819587A (en) * 1969-05-23 1974-06-25 Du Pont Wholly aromatic carbocyclic polycarbonamide fiber having orientation angle of less than about 45{20
US3767756A (en) * 1972-06-30 1973-10-23 Du Pont Dry jet wet spinning process

Also Published As

Publication number Publication date
JPH0351311A (en) 1991-03-05
EP0404145B1 (en) 1994-05-18
EP0404145A2 (en) 1990-12-27
CA2019438A1 (en) 1990-12-21

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