Process for production of lactam copolymer and of articles therefrom.

摘要

A process for producing a lactam copolymer, which comprises copolymerizing an omega-lactam and a diene polymer having an amino or imino group at molecular ends by the action of an alkaline catalyst and a polyfunctional co-catalyst. the proportions of the components satisfying the following equations (I) and (II)<MathDetails id="matha01"><MathText><![CDATA[ <img id="ia01" file="imga0001.tif" wi="86" he="6" img-content="math" img-format="tif" inline="no" /> ]]></MathText></MathDetails><MathDetails id="matha02"><MathText><![CDATA[ <img id="ia02" file="imga0002.tif" wi="86" he="7" img-content="math" img-format="tif" inline="no" /> ]]></MathText></MathDetails>wherein a, b and c represent the equivalent weights of the alkaline catalyst, the polyfunctional co-catalyst and the diene polymer, respectively, per equivalent of omega-lactam. The copolymer is useful in articles which are automobile parts.