Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1982-05-18
1984-10-23
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
252510, 252518, 428521, 428522, 428 35, B32B 702
Patent
active
044789033
ABSTRACT:
A composite plastics sheet made of a polystyrene base resin or an ABS base resin is provided. The composite plastics sheet has a conductive covering layer laminated by co-extrusion on the face of the substrate sheet. The material for the conductive covering layer is made of a polystyrene base resin or an ABS base resin and mixed with a conductive carbon black material, such as furnace black or channel black, in an amount such that the flow index at the extrusion step thereof at 200.degree. C. and under a loading of 5 kg is not lower than 0.1 g/10 min and such that the surface specific resistance of the resultant mixture is not more than 10.sup.10 ohms.
REFERENCES:
patent: 4009093 (1977-02-01), Luch
patent: 4051298 (1977-09-01), Misiura et al.
patent: 4101050 (1978-07-01), Buckler et al.
Iwato Noboru
Kishida Kozi
Ozeki Yuji
Buffalow E. Rollins
Denki Kagaku Kogyo Kabushiki Kaisha
Lesmes George F.
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