发明名称 PRODUIT LAMELLE ET SON PROCEDE DE FABRICATION
摘要 The invention is directed to a rigid article comprising a soft foam member, preferably open cell polyurethane, adhered to at least one surface of said soft foam member, a hard polyurethane resin member; said adhesion being obtained by way of penetration of hard resin affording material into cells of said soft foam member for a distance sufficient to provide a substantially permanent bond between said two members, after curing said hard resin-affording material; and said hard resin member is sufficiently thick to provide configurational support for said article. Normally, the article includes a cover member.
申请公布号 FR2492730(B1) 申请公布日期 1985.08.16
申请号 FR19810000641 申请日期 1981.01.15
申请人 COLAMCO INC 发明人
分类号 B29C44/24;B32B5/18;B32B7/04;B32B27/40;C08J9/36 主分类号 B29C44/24
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