27.
    发明专利
    未知

    公开(公告)号:BRPI0513239A

    公开(公告)日:2008-04-29

    申请号:BRPI0513239

    申请日:2005-07-08

    Applicant: BASF AG

    Abstract: A process for producing expandable styrene polymers (EPS) having improved expandability, wherein from 0.1 to 1% by weight, based on the styrene polymer, of a free-radical former is metered into a styrene polymer melt containing blowing agent at a melt temperature in the range from 150 to 220° C. and the melt is extruded through a die plate with subsequent underwater pelletization.

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