Semiconductor polymeric compound based on lampblack, polymeric s

Details Semiconductor polymeric compound based on lampblack, polymeric s Semiconductor polymeric compound based on lampblack, polymeric s

1994-03-30

1995-04-25

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524495, 524496, C08K 324

Patent

active

054099811

ABSTRACT:
The method of making a semiconductor polymeric compounds includes an "A" phase consisting of preparing a mixture of a polymeric matrix consisting essentially of 60% by weight low density polyethylene and 8.5% by weight ethylene vinyl acetate based on a total amount of the polymeric compound to be prepared with 20% by weight of a conductive lampblack with a porous structure and 4.0% by weight of a spreading agent consisting of calcium stearate, about 3% by weight of an antioxidant, and 0.5% of a coupling agent consisting of calcium titanate; and a "B" phase including incorporating the conductive component in the polymeric matrix. A semiconductor body according to the invention is also made.

REFERENCES:
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patent: 4857232 (1989-08-01), Burns
patent: 4987164 (1991-01-01), Kauffman et al.
J. H. Smuckler and P. M. Finnerty "Performance of . . . Carbon Blacks in a Typical Plastics System", Fillers and Reinforcements for Plastics, 171-183, Rudolph D. Deanin et al, editors ACS (1974).
M. Narkis, A. Ram and Z. Stein "Electrical Properties of Carbon Black Filled-Crosslinked Polyethylene ," Polymer Engineering and Science, vol. 21, No.1 6, Nov. 1981.
Kirk-Othmer Encyclopedia of Chemical Technology 4th Edition, vol. 4, 1037-1039, 1055, 1063-1068 (1992).
Encyclopedia of Polymer Science and Enginering vol. 2, 623-640 (1985).

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