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公开(公告)号：ES2172787T3
公开(公告)日：2002-10-01
申请号：ES97923024
申请日：1997-05-07
Applicant: BASF AG
Inventor： HAHN KLAUS , STEINBRECHER HORST , NAEGELE DIETER , LOFFLER ACHIM , GURTLER MANFRED , SCHMITT HAGEN
Abstract: PCT No. PCT/EP97/02362 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/43334 PCT Pub. Date Nov. 20, 1997The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25 DEG C. and has a mean particle size of less than 100 mu m. The beads can be converted into foam moldings having reduced water absorption capacity.
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公开(公告)号：CA2255591C
公开(公告)日：2006-07-11
申请号：CA2255591
申请日：1997-05-07
Applicant: BASF AG
Inventor： LOFFLER ACHIM , NAEGELE DIETER , STEINBRECHER HORST , GURTLER MANFRED , HAHN KLAUS , SCHMITT HAGEN , REICHERT JURGEN
Abstract: The invention relates to expandable polystyrene particles which contain foaming agents and are coated with 0.01 to 0.5 wt. % of a waterproofing agent which melts above 10.degree.C and has an average particl e size of less than 100 .mu.m. The particles are processed to form moulded foam structures with a reduced water absorption capacity.
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公开(公告)号：AU2894497A
公开(公告)日：1997-12-05
申请号：AU2894497
申请日：1997-05-07
Applicant: BASF AG
Inventor： HAHN KLAUS , STEINBRECHER HORST , NAEGELE DIETER , LOFFLER ACHIM , GURTLER MANFRED , SCHMITT HAGEN , REICHERT JURGEN
Abstract: PCT No. PCT/EP97/02362 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/43334 PCT Pub. Date Nov. 20, 1997The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25 DEG C. and has a mean particle size of less than 100 mu m. The beads can be converted into foam moldings having reduced water absorption capacity.
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