发明名称 |
Verfahren zur Herstellung von planebenen Bauelementen |
摘要 |
A process for the production of sandwich constructions consisting of (a) an inner ply of polyethylene; (b) adhesion-promoting interlayers applied to both sides of the inner ply and (c) outer plies of metal applied to the two interlayers. It is a characteristic feature of the invention that sheeting is prepared continuously from a special polyethylene by means of a screw extruder at a specific temperature of the material, this sheeting is covered on both sides with a film of a special polymer by means of a pair of rollers, the resultant laminate is then covered continuously by means of a pair of rollers at a specific temperature of the material with metal sheeting having a specific temperature and the whole is combined to form a sandwich panel under a specific roller pressure. The process gives sandwich constructions having particularly good chemical and physical properties in a simple way. |
申请公布号 |
DE1779556(A1) |
申请公布日期 |
1972.03.23 |
申请号 |
DE19681779556 |
申请日期 |
1968.08.27 |
申请人 |
BADISCHE ANILIN- & SODA-FABRIK AG |
发明人 |
FRIELINGSDORF,HANS,DR.;MUELLER-TAMM,HEINZ,DR.;MAHLING,DIETER,DR. |
分类号 |
B29C39/12;B29C63/00;B32B15/08;B32B27/32;B32B37/15;D06N7/00 |
主分类号 |
B29C39/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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