GB1323963A - Shaped articles of polycaprolactam - Google Patents

Shaped articles of polycaprolactam

Info

Publication number
GB1323963A
GB1323963A GB2614471A GB2614471A GB1323963A GB 1323963 A GB1323963 A GB 1323963A GB 2614471 A GB2614471 A GB 2614471A GB 2614471 A GB2614471 A GB 2614471A GB 1323963 A GB1323963 A GB 1323963A
Authority
GB
United Kingdom
Prior art keywords
polycaprolactam
caprolactam
catalyst
april
alkali
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
GB2614471A
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Publication of GB1323963A publication Critical patent/GB1323963A/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

1323963 Moulding polycaprolactam UNITIKALtd 19 April 1971 [16 April 1970] 26144/71 Heading B5A In a process for producing shaped articles of polycaprolactam, caprolactam is polymerized at a temperature below the melting point of polycaprolactam is the presence of an alkaline catalyst and an activator; the resulting polymer is melt-shaped in the presence of water (0.1-10 moles/mole of catalyst used) e.g. by extrusions or injection methods. The water may be incorporated into the polymer in any suitable fashion (other than washing) e.g. by soaking, steam damping or, in the case of particles, merely by mixing. The catalyst may be an alkali or alkaline earth metal, a caprolactam salt thereof or a hydroxide, hydride, carbonate or alkoxide of an alkali or alkaline earth metal. Activators include, esters, isocyanates or urea or methane compounds. Preferred are sodium caprolactam and N-acetyl caprolactam.
GB2614471A 1970-04-16 1971-04-19 Shaped articles of polycaprolactam Expired GB1323963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3261270A JPS4919695B1 (en) 1970-04-16 1970-04-16

Publications (1)

Publication Number Publication Date
GB1323963A true GB1323963A (en) 1973-07-18

Family

ID=12363660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2614471A Expired GB1323963A (en) 1970-04-16 1971-04-19 Shaped articles of polycaprolactam

Country Status (3)

Country Link
JP (1) JPS4919695B1 (en)
DE (1) DE2115297A1 (en)
GB (1) GB1323963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092898A2 (en) * 1982-04-28 1983-11-02 E.I. Du Pont De Nemours And Company Process for remelting polyamides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357568A1 (en) * 1973-11-17 1975-05-22 Bayer Ag METHOD FOR MANUFACTURING POLYAMIDES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591468A (en) * 1982-03-28 1986-05-27 Imperial Chemical Industries Plc Process for remelting polyamides
EP0092898A2 (en) * 1982-04-28 1983-11-02 E.I. Du Pont De Nemours And Company Process for remelting polyamides
EP0092898A3 (en) * 1982-04-28 1984-01-11 Imperial Chemical Industries Plc Process for remelting polyamides

Also Published As

Publication number Publication date
DE2115297A1 (en) 1971-10-28
JPS4919695B1 (en) 1974-05-20

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Legal Events

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