公开(公告)号：AU647160B2

公开(公告)日：1994-03-17

申请号：AU8162191

申请日：1991-08-05

Applicant: BASF AG

Inventor： WALTER MANFRED DR ,  WASSMER KARL HEINZ DR ,  LORENZ MARIA DR

IPC: C08J9/00 ,  C08J9/16 ,  C08J9/224 ,  C08J9/228 ,  C08J9/232 ,  C08J9/14

Abstract: Bead-form, antistatic, expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.5 to 3% by weight, based on a), of a coating containing …… b1)from 10 to 70% by weight of finely divided silica, … b2)from 20 to 80% by weight of a hydroxyl-containing quaternary ammonium salt and, if desired, … b3)from 0.05 to 20% by weight of a conventional adhesion promoter and … b4)from 10 to 30% by weight of a conventional agent for shortening the cooling time, …… c) from 1 to 8% by weight, based on a), of a C3- to C6-hydrocarbon as blowing agent, and, if desired, … d) conventional additives in effective amounts. …