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公开(公告)号:US3802950A
公开(公告)日:1974-04-09
申请号:US26707672
申请日:1972-06-28
申请人: MONSANTO CO
发明人: STEVENS J
CPC分类号: B32B11/048 , B32B11/046 , B32B2266/0278 , B32B2266/06 , B32B2266/08 , B32B2307/304 , E04C2/205 , F25D23/06 , F25D2201/126 , Y10T428/24967 , Y10T428/249976 , Y10T428/249987 , Y10T428/249993 , Y10T428/31815
摘要: Improved integral, three-layered plastic, thermally insulating composites each having an impact resistant solid facing layer of a monovinyl aromatic compound alpha-electronegatively substituted ethene compound interpolymer system, a layer of cellular polyurethane, and an interlayer of bitumen positioned between these two layers. The resulting composites have improved impact resistance as respects the solid facing layer.