GB754490A - Heat resistant synthetic fiber-forming polyamides - Google Patents

Heat resistant synthetic fiber-forming polyamides

Info

Publication number
GB754490A
GB754490A GB15457/54A GB1545754A GB754490A GB 754490 A GB754490 A GB 754490A GB 15457/54 A GB15457/54 A GB 15457/54A GB 1545754 A GB1545754 A GB 1545754A GB 754490 A GB754490 A GB 754490A
Authority
GB
United Kingdom
Prior art keywords
acid
heated
heat resistant
synthetic fiber
darkened
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
GB15457/54A
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.)
California Research LLC
Original Assignee
California Research 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 California Research LLC filed Critical California Research LLC
Publication of GB754490A publication Critical patent/GB754490A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Abstract

Superpolyamides which are crystalline, fibreforming and have a high resistance to heat are obtained by polymerizing m-aminomethylbenzoic acid. In examples: (1) an 8 per cent aqueous solution of the amino acid was heated in a flask to remove water and then heated slowly for one hour to 320 DEG C. in an atmosphere of nitrogen to give a polymer which on heating to 340-370 DEG C. darkened and showed incipient melting; (2) isopropanol was added to an aqueous solution of the amino acid to precipitate the acid. Two parts of the moist acid were mixed with 1.7 parts mixed xylenols and the mixture heated at reflux for one hour to give a powdery polymer which darkened and showed incipient melting at 340-370 DEG C.ALSO:Meta-aminomethylbenzoic acid is prepared from isophthalic acid by conversion to metacyanobenzoic acid and subsequent hydrogenation. The amino-acid may be polymerized (see Group IV (a)).
GB15457/54A 1953-06-04 1954-05-25 Heat resistant synthetic fiber-forming polyamides Expired GB754490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US754490XA 1953-06-04 1953-06-04

Publications (1)

Publication Number Publication Date
GB754490A true GB754490A (en) 1956-08-08

Family

ID=22125830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15457/54A Expired GB754490A (en) 1953-06-04 1954-05-25 Heat resistant synthetic fiber-forming polyamides

Country Status (4)

Country Link
BE (1) BE529101A (en)
DE (1) DE1032531B (en)
FR (1) FR1101428A (en)
GB (1) GB754490A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071253A (en) * 1935-01-02 1937-02-16 Du Pont Linear condensation polymers
GB667771A (en) * 1947-11-26 1952-03-05 Ici Ltd Diamines and polyamides therefrom

Also Published As

Publication number Publication date
DE1032531B (en) 1958-06-19
BE529101A (en)
FR1101428A (en) 1955-10-06

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