GB869079A - Improvements in the production of n-substituted polyamides - Google Patents

Improvements in the production of n-substituted polyamides

Info

Publication number
GB869079A
GB869079A GB22876/59A GB2287659A GB869079A GB 869079 A GB869079 A GB 869079A GB 22876/59 A GB22876/59 A GB 22876/59A GB 2287659 A GB2287659 A GB 2287659A GB 869079 A GB869079 A GB 869079A
Authority
GB
United Kingdom
Prior art keywords
lactam
acid
ethyl
oenanthic
caprylic
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
GB22876/59A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB869079A publication Critical patent/GB869079A/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

Abstract

Polyamides are made by heating a lactam of an omega-aminocarboxylic acid with 8 to 13 ring members and which is substituted on nitrogen by an alkyl group or an alkenyl group containing only one ethylenic double bond, the total number of carbon atoms in said substituent being from one to six at 200 DEG C. to 300 DEG C. in the presence of 0,1%-5% by weight, based on the monomer, of a neutral or acid polymerization catalyst. Specified lactams are N-methyl-oenanthic lactam, N-ethyl-oenanthic lactam, N-methylcaprylic lactam, N-ethyl caprylic lactam, N-methyl lauric lactam and said lactams substituted on the nitrogen atom by propyl, butyl, isobutyl, isoamyl, hexyl, vinyl, allyl, crotryl or methallyl groups. Specified catalysts are phosphoric acid, sulphuric acid, hydrobromic acid, hexamethylene diammonium adipate, octamethylene diammonnium sebacate, o -aminocaproic acid and water. The examples describe the preparation of polyamides from: (1), (7) and (8) N-methyl caprylic lactam; (2) and (3) N-ethyl-caprylic lactam; (4) and (5) N-ethyl-oenanthic lactam; (9) N-butyl-caprylic lactam and (10) n-butyl-oenanthic lactam; exemplified catalysts being phosphoric acid, pyrophosphoric acid, hexamethylene diammonium adipate and water.
GB22876/59A 1958-07-05 1959-07-03 Improvements in the production of n-substituted polyamides Expired GB869079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE869079X 1958-07-05

Publications (1)

Publication Number Publication Date
GB869079A true GB869079A (en) 1961-05-31

Family

ID=6802773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22876/59A Expired GB869079A (en) 1958-07-05 1959-07-03 Improvements in the production of n-substituted polyamides

Country Status (2)

Country Link
GB (1) GB869079A (en)
NL (1) NL240839A (en)

Also Published As

Publication number Publication date
NL240839A (en)

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