GB1099759A - Caprolactam compositions and use thereof - Google Patents

Caprolactam compositions and use thereof

Info

Publication number
GB1099759A
GB1099759A GB5791666A GB5791666A GB1099759A GB 1099759 A GB1099759 A GB 1099759A GB 5791666 A GB5791666 A GB 5791666A GB 5791666 A GB5791666 A GB 5791666A GB 1099759 A GB1099759 A GB 1099759A
Authority
GB
United Kingdom
Prior art keywords
lactam
metal
caprolactam
cocatalyst
catalyst
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
GB5791666A
Inventor
Walter Thomas Darnell
Charles Frank Fisher
Robert Edward Maier
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB5791666A priority Critical patent/GB1099759A/en
Publication of GB1099759A publication Critical patent/GB1099759A/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
    • C08G69/16—Preparatory processes
    • C08G69/18—Anionic polymerisation

Abstract

The invention comprises solid, anhydrous, polyamide - forming compositions comprising caprolactam and a catalyst and cocatalyst for anionic lactam polymerization. Such compositions may be prepared by (a) heating caprolactam with an alkali metal, an alkaline earth metal or a basic derivative of such a metal in the absence of water and oxygen so that a lactam/lactam salt mixture is formed, (b) removing volatile material from this mixture, (c) adjusting its temperature to 70-100 DEG C., (d) dispersing a cocatalyst in it and (e) allowing it to cool and solidify. Basic metal derivatives specified include NaH, NaOH, NaOMe, and NaNH2. 0.01-10 mole per cent may be used and the catalyst may be formed at 69-200 DEG C. optionally under reduced pressure. Cocatalysts specified include poly-(Bisphenol A carbonate), the b -lactone of 2,2,4-trimethyl-3-hydroxypent-3-enoic acid, phenyl isocyanate, diphenylcarbamyl imidazole, sebacoyl dipyrazole, diphenyl carbonate and diphenyl isophthalate. 0.02-5 mole per cent may be used. The resultant composition may be simultaneously moulded and polymerized by heating at 150-190 DEG C. in an extruder or injection moulding machine. In examples, a dry nitrogen atmosphere was used.
GB5791666A 1966-12-28 1966-12-28 Caprolactam compositions and use thereof Expired GB1099759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5791666A GB1099759A (en) 1966-12-28 1966-12-28 Caprolactam compositions and use thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5791666A GB1099759A (en) 1966-12-28 1966-12-28 Caprolactam compositions and use thereof

Publications (1)

Publication Number Publication Date
GB1099759A true GB1099759A (en) 1968-01-17

Family

ID=10480366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5791666A Expired GB1099759A (en) 1966-12-28 1966-12-28 Caprolactam compositions and use thereof

Country Status (1)

Country Link
GB (1) GB1099759A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046293A1 (en) * 1999-12-21 2001-06-28 Ems-Chemie Ag Liquid initiator for carrying out anionic lactam polymerization in an accelerated manner, method for the production thereof and its use
EP2447302A1 (en) 2010-10-29 2012-05-02 Rhein Chemie Rheinau GmbH Method for manufacturing cast polyamides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046293A1 (en) * 1999-12-21 2001-06-28 Ems-Chemie Ag Liquid initiator for carrying out anionic lactam polymerization in an accelerated manner, method for the production thereof and its use
US6881819B2 (en) 1999-12-21 2005-04-19 Ems-Chemie Ag Liquid initiator for carrying out anionic lactam polymerization in an accelerated manner, method for the production thereof and its use
EP2447302A1 (en) 2010-10-29 2012-05-02 Rhein Chemie Rheinau GmbH Method for manufacturing cast polyamides
EP2447302B1 (en) 2010-10-29 2018-11-28 LANXESS Deutschland GmbH Method for manufacturing cast polyamides

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