GB1375839A - - Google Patents

Info

Publication number
GB1375839A
GB1375839A GB602671A GB602671A GB1375839A GB 1375839 A GB1375839 A GB 1375839A GB 602671 A GB602671 A GB 602671A GB 602671 A GB602671 A GB 602671A GB 1375839 A GB1375839 A GB 1375839A
Authority
GB
United Kingdom
Prior art keywords
salt
polyamide
water
alkali metal
produced
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
GB602671A
Other languages
English (en)
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 filed Critical
Priority to GB602671A priority Critical patent/GB1375839A/en
Priority to DE19722210427 priority patent/DE2210427A1/de
Priority to NL7202835A priority patent/NL7202835A/xx
Priority to US500883A priority patent/US3926865A/en
Publication of GB1375839A publication Critical patent/GB1375839A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • 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
    • C08G69/16—Preparatory processes
    • C08G69/18—Anionic polymerisation
    • C08G69/20—Anionic polymerisation characterised by the catalysts used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyamides (AREA)
GB602671A 1972-02-23 1972-02-23 Expired GB1375839A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB602671A GB1375839A (fr) 1972-02-23 1972-02-23
DE19722210427 DE2210427A1 (de) 1972-02-23 1972-03-03 Verfahren zur Herstellung von Polyamiden und Polyamidschäumen
NL7202835A NL7202835A (fr) 1972-02-23 1972-03-03
US500883A US3926865A (en) 1972-02-23 1974-08-27 Process for polymerizing lactams in the presence of azodicarboxylate and isocyanate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB602671A GB1375839A (fr) 1972-02-23 1972-02-23

Publications (1)

Publication Number Publication Date
GB1375839A true GB1375839A (fr) 1974-11-27

Family

ID=9807073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB602671A Expired GB1375839A (fr) 1972-02-23 1972-02-23

Country Status (3)

Country Link
DE (1) DE2210427A1 (fr)
GB (1) GB1375839A (fr)
NL (1) NL7202835A (fr)

Also Published As

Publication number Publication date
DE2210427A1 (de) 1972-09-14
NL7202835A (fr) 1972-09-06

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Legal Events

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