Continuous polymerisation eg of epsilon cap- - rolactam

    公开(公告)号:DE2022687A1

    公开(公告)日:1970-11-12

    申请号:DE2022687

    申请日:1970-05-08

    Abstract: Title process is effected in a polymerisation column characterised in that, during the condensation polymerisation stage, polymer streams of the central part of the cross-section of the polymerisation column are exchanged against polymer streams of the peripheral part of the column, and the so-exchanged polymer streams are melted one into another in form of the desired polymer before issuing from the polymerisation column. suitable apparatus is provided with means for the exchange of the polymer streams inside the column against streams in the peripheral zone of the column, and also with means for the melting together of the exchanged polymer streams.

    HEAT-TREATMENT APPARATUS FOR MANUFACTURE OF CARBON FIBER

    公开(公告)号:JPS5982414A

    公开(公告)日:1984-05-12

    申请号:JP18976682

    申请日:1982-10-28

    Abstract: PURPOSE:To enable prompt action in the case of winding carbon fiber around a roll by end breakage, etc., and to improve the heat-treatment effect, by passing a yarn continuously through plural heat-treatment chambers, wherein the last heat treatment chamber is furnished with a guide roller at a specific position. CONSTITUTION:In a heat-treatment apparatus composed of a plurality of vertical heat-treatment furnaces for the heat-treatment of a yarn running in zigzag manner between the guide rollers placed at the upper part and the lower part of the heat-treatment chambers, the last heat-treatment furnace is furnished with the upper guide rollers 6a, 6b in the heat-treatment chamber 3, and the lower guide rollers 7a-7c below the heat-treatment furnace 3, and the other heat-treatment furnaces are furnished with the upper guide rollers 4a, 4b and lower guide rollers 5a, 5c outside of the heat-treatment chamber 2.

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