GB542034A - Improvements in or relating to artificial filaments, films and like materials - Google Patents

Improvements in or relating to artificial filaments, films and like materials

Info

Publication number
GB542034A
GB542034A GB10666/40A GB1066640A GB542034A GB 542034 A GB542034 A GB 542034A GB 10666/40 A GB10666/40 A GB 10666/40A GB 1066640 A GB1066640 A GB 1066640A GB 542034 A GB542034 A GB 542034A
Authority
GB
United Kingdom
Prior art keywords
filaments
acid
films
acids
formic acid
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
GB10666/40A
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.)
Henry Dreyfuss Associates LLC
Original Assignee
Henry Dreyfuss Associates LLC
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 Henry Dreyfuss Associates LLC filed Critical Henry Dreyfuss Associates LLC
Priority to GB10666/40A priority Critical patent/GB542034A/en
Publication of GB542034A publication Critical patent/GB542034A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Polyamides (AREA)

Abstract

542,034. Artificial filaments, films etc.; polyamides. DREYFUS, H., MONCRIEFF, R. W., and SAMMONS, C. W. June 21, 1940, No. 10666. [Classes 2 (ii) and 2 (iii)] Artificial filaments, fibres, threads, yarns, films, foils, and like shaped articles are obtained by shaping a solution of a polyamide and setting it in a liquid medium comprising an organic aliphatic compound containing a hydroxyl group directly attached to a carbon atom. The polyamide may be obtained by condensing diamines with dicarboxylic acids or with halides or esters of these acids or by condensing amino-carboxylic acids with themselves or each other. The polyamide may be dissolved in a phenol or carboxylic acid such as formic acid, acetic acid, phenol, cresol, or resorcinol. The hydroxy compound employed in the coagulating medium may be an alcohol such as ethyl, methyl, propyl, or butyl alcohol, or it may be an aliphatic acid such as formic, acetic, propionic, or chloracetic acid. The alcohols may be used in anhydrous condition or diluted with water. The acids should generally be used diluted with water. When aqueous coagulating baths are used the filaments may readily be drawn out to produce filaments of high tenacity and good elasticity. Crinkled filaments may be obtained by allowing the filaments to fall under gravity to the bottom of the setting bath. The filaments may be converted into staple fibres. The films may be used for photographic purposes or for making splinterless glass or glass substitutes. In an example, hexamethylene diammonium adipate is heated with phenol. Adipic acid is added and heating is continued. The product is dissolved in formic acid and purified by precipitation and washing. It is re-dissolved in formic acid and passed from a pressure vessel through a filter of stainless steel gauze and glass wool to a spinning jet. The solution is extruded into a cold aqueous solution of formic acid. Specifications 529,510 and 541,592 are referred to.
GB10666/40A 1940-06-21 1940-06-21 Improvements in or relating to artificial filaments, films and like materials Expired GB542034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10666/40A GB542034A (en) 1940-06-21 1940-06-21 Improvements in or relating to artificial filaments, films and like materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10666/40A GB542034A (en) 1940-06-21 1940-06-21 Improvements in or relating to artificial filaments, films and like materials

Publications (1)

Publication Number Publication Date
GB542034A true GB542034A (en) 1941-12-23

Family

ID=9972049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10666/40A Expired GB542034A (en) 1940-06-21 1940-06-21 Improvements in or relating to artificial filaments, films and like materials

Country Status (1)

Country Link
GB (1) GB542034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222621B (en) * 1960-02-25 1966-08-11 Celanese Corp Manufacture of threads or foils from polyamides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222621B (en) * 1960-02-25 1966-08-11 Celanese Corp Manufacture of threads or foils from polyamides

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