发明名称 |
PROCEDE DE FORMATION DE SILLONS DE DECHIREMENT ET ARTICLE AINSIFORME |
摘要 |
1314964 Scoring FOSTER GRANT CO Inc 16 Feb 1971 4778/71 Heading B6J Score lines are produced in heat-destructible foamed thermoplastics mesh material by thermally destroying a portion of the thickness of the material along the required lines. The lines may be produced by bringing heated elements such as discs, wires or bars into close proximity ( but preferably not into contact) with the mesh. The plastics material may be foamed polystyrene, polyethylene or polypropylene. The mesh may be laminated to a continuous plastics film, e.g. of polyethylene. The mesh 10 may be transversely scored by a heated blade 38 on a rotatable shaft 36 and longitudinally scored by heated bars 28. |
申请公布号 |
BE766271(A7) |
申请公布日期 |
1971.09.16 |
申请号 |
BE19710766271 |
申请日期 |
1971.04.26 |
申请人 |
FOSTER GRANT CO. INC., 289, NORTH MAIN STREET, LEOMINSTER, MASSACHUSETTS (E.U.A.), |
发明人 |
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分类号 |
B26D1/00;B26F3/00;B26F3/06;B26F3/08;B29C37/00;B29C44/02;B29C44/56;B29C59/00;B29C59/02;B29D28/00;B32B27/00;B65D30/06;(IPC1-7):29F/ |
主分类号 |
B26D1/00 |
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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