专利检索 ap:("ASAHI-DOW LIMITED" OR "THE DOW CHEMICAL COMPANY") AND inv:"NAKAMURA, MASAO" 第 1 页

1.

发明公开
DIRECTIONALLY FLEXIBILIZED EXPANDED THERMOPLASTIC FOAM SHEET FOR LOW TEMPERATURE INSULATION 失效
标题翻译：用于低温绝缘的方向性柔性膨胀型热塑性泡沫板

公开(公告)号：EP0062882A3

公开(公告)日：1985-08-07

申请号：EP82102919

申请日：1982-04-05

申请人： ASAHI-DOW LIMITED , THE DOW CHEMICAL COMPANY

发明人： TONOKAWA, HIROSHI , NAKAMURA, MASAO

IPC分类号： C08J9/12 , B29B7/00 , B29C44/56 , B29C47/00 , B29C67/20 , B29K25/00 , B29K105/04 , B29C71/00 , C08J9/36

CPC分类号： B29C44/5627 , B29C44/5636

摘要： Flexibilized, rigid plastic foam sheets with improved properties particularly desirable for low temperature and cryogenic insulation can be prepared by mechanical com pression of freshly expanded closed-cell thermoplastic foams. Thus an extruded foam sheet having a density of 20-100 kg/m³, a y-axial size size of 0.05 to 1.00 mm and a Y-axial compressive strength of at least 1.8 kg/cm² is flexibilized with 0.25 to 240 hours of expansion to give a flexibilized foam with improved elongation, workability, crack resistance and water vapor barrier properties.