GB880761A - A process for improving polyamides - Google Patents

A process for improving polyamides

Info

Publication number
GB880761A
GB880761A GB4215959A GB4215959A GB880761A GB 880761 A GB880761 A GB 880761A GB 4215959 A GB4215959 A GB 4215959A GB 4215959 A GB4215959 A GB 4215959A GB 880761 A GB880761 A GB 880761A
Authority
GB
United Kingdom
Prior art keywords
caprolactam
methylene
bis
lactam
hexamethylene diammonium
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
GB4215959A
Inventor
Erich Schwartz
Manfried Paul
Friedrich Becke
Kurt Wick
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
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 Badische Anilin and Sodafabrik AG filed Critical Badische Anilin and Sodafabrik AG
Priority to GB4215959A priority Critical patent/GB880761A/en
Publication of GB880761A publication Critical patent/GB880761A/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

Abstract

Polyamides are modified by heating in an inert medium at a temperature below its melting point a polyamide made in the fused state from (a) a linear polyamide-forming compound and (b) 0,5 to 5% by weight, with reference to the whole polyamide-forming mixture of a dilactam which contains a hydrogen atom attached to nitrogen in each of the lactam groups. Specified polyamide forming compounds are caprolactam, oenanthic lactam, caprylic lactam, lauric lactam, 4-isopropyl caprolactam, 3-methyl caprolactam, hexamethylene diammonium adipate, octamethylene diammonium sebacate, hexamethylene diammonium terephthalate, omega-aminocaproic acid and omega-aminoundecanoic acid. Preferred dilactams are defined. The examples describe the preparation and aftertreatment of polyamides from:- (1) caprolactam, hexamethylene diammonium adipate and methylene-bis-cyclohexanone-oxime; (2) caprolactam and methylene-bis-cyclohexanone-oxime; (3) caprylic lactam, hexamethylene diammonium terephthalate and methylene-bis-caprolactam; (4) hexamethylene diammonium adipate and methylene-bis-caprolactam and (5) caprolactam and methylene-bis-caprolactam. Specification 824,207 is referred to.
GB4215959A 1959-12-11 1959-12-11 A process for improving polyamides Expired GB880761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4215959A GB880761A (en) 1959-12-11 1959-12-11 A process for improving polyamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4215959A GB880761A (en) 1959-12-11 1959-12-11 A process for improving polyamides

Publications (1)

Publication Number Publication Date
GB880761A true GB880761A (en) 1961-10-25

Family

ID=10423121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4215959A Expired GB880761A (en) 1959-12-11 1959-12-11 A process for improving polyamides

Country Status (1)

Country Link
GB (1) GB880761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458481A (en) * 1964-10-31 1969-07-29 Bayer Ag Process for the preparation of high molecular weight cross-linked polyamides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458481A (en) * 1964-10-31 1969-07-29 Bayer Ag Process for the preparation of high molecular weight cross-linked polyamides

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