发明名称 Process for producing transparency frames
摘要 The invention relates to a process for producing elastically enlargeable transparency frame halves from at least one extruded plastics film which are bonded together by adhesion or ultrasonic welding to form a frame in which the picture window cutouts and the outer contour of the frame are punched out. With the object of simplifying the known processes of this type in such a manner that the frames can be produced at lower cost, the film bed for the transparency is embossed into at least one of two films.
申请公布号 DE3416760(A1) 申请公布日期 1985.11.07
申请号 DE19843416760 申请日期 1984.05.07
申请人 GEIMUPLAST PETER MUNDT GMBH & CO KG 发明人 MUNDT,PETER;NEUHOLD,ARNOLD
分类号 B29C43/02;B29D12/00;G03B21/64;(IPC1-7):B29D12/00 主分类号 B29C43/02
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