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公开(公告)号：CS178891B2
公开(公告)日：1977-10-31
申请号：CS506273
申请日：1973-07-13
Applicant: STAMICARBON
Inventor： WOLVERS WILHELMUS P , WARNIER JEAN M
Abstract: A process for the preparation of polyamides in granular or powdered form is described, said process comprising heating a lactam or mixture of lactams in a suitable inert solvent at a temperature below the melting point of the polyamide to be formed, in the presence of a conventional anionic catalyst and a conventional promotor. The disclosure points out that the presence during polymerisation of one or more compounds from the group of alcohols, carboxylic esters and inert salts, dissolved or dispersed in the solvent, prevents the formation of lumps and the adhesion of the polyamide to the reactor walls.
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