GB1475062A - Method of producing a polymer of 2-pyrrolidone suitable for melt spinning - Google Patents

Method of producing a polymer of 2-pyrrolidone suitable for melt spinning

Info

Publication number
GB1475062A
GB1475062A GB659676A GB659676A GB1475062A GB 1475062 A GB1475062 A GB 1475062A GB 659676 A GB659676 A GB 659676A GB 659676 A GB659676 A GB 659676A GB 1475062 A GB1475062 A GB 1475062A
Authority
GB
United Kingdom
Prior art keywords
polymer
poly
producing
pyrrolidone
reducing agent
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
GB659676A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1475062A publication Critical patent/GB1475062A/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
    • C08G69/14—Lactams
    • C08G69/24—Pyrrolidones or piperidones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polyamides (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1475062 White polypyrrolidene A C BARNES 19 Feb 1976 [3 March 1975] 06596/76 Heading C3R Melt-spinnable poly(2-pyrrolidone) prepared by polymerization in the presence of an alkaline catalyst and 0À01 to 0À03 moles SO 2 polymerization activator per mole of monomer is rendered white by sequential treatment with a liquid oxidizing agent and then a reducing agent. Specified oxidizing agents are solutions of hydrogen peroxide, potassium persulphate and sodium perborate. The reducing agent may be sodium metabisulphite; its use is stated to prevent polymer bleached by the oxidizing agent from becoming discoloured again on remelting. It is indicated that the process could also be applied to poly(piperidone).
GB659676A 1975-03-03 1976-02-19 Method of producing a polymer of 2-pyrrolidone suitable for melt spinning Expired GB1475062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55475975A 1975-03-03 1975-03-03

Publications (1)

Publication Number Publication Date
GB1475062A true GB1475062A (en) 1977-06-01

Family

ID=24214599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB659676A Expired GB1475062A (en) 1975-03-03 1976-02-19 Method of producing a polymer of 2-pyrrolidone suitable for melt spinning

Country Status (9)

Country Link
JP (1) JPS51111292A (en)
CA (1) CA1070893A (en)
CH (1) CH601380A5 (en)
DE (1) DE2606268A1 (en)
FR (1) FR2303038A1 (en)
GB (1) GB1475062A (en)
IN (1) IN145329B (en)
IT (1) IT1053891B (en)
NL (1) NL7602216A (en)

Also Published As

Publication number Publication date
DE2606268A1 (en) 1976-09-16
CH601380A5 (en) 1978-07-14
FR2303038B3 (en) 1978-12-01
IT1053891B (en) 1981-10-10
JPS51111292A (en) 1976-10-01
IN145329B (en) 1978-09-23
AU1161376A (en) 1977-09-08
NL7602216A (en) 1976-09-07
CA1070893A (en) 1980-01-29
FR2303038A1 (en) 1976-10-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee