Semiconductive rubber foam

Details Semiconductive rubber foam Semiconductive rubber foam

1991-03-12

1991-12-31

Foelak, Morton

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252510, 521 82, 521142, 521143, 521144, 521145, 521 96, H01B 106

Patent

active

050769677

ABSTRACT:
Disclosed is a semiconductive rubber foam having a volume resistivity that can be controlled to a practical level and retaining an initial softness (hardness) even after the lapse of time. This semiconductor rubber foam is composed of a molded article obtained by curing and foaming a rubber composition comprising (A) 100 parts by weight of a chlorinated ethylene/.alpha.-olefin copolymer rubber and (B) 10 to 50 parts by weight of carbon black. The volume resistivity of this semiconductive rubber foam has is in the range of from 10.sup.5 to 10.sup.11 .OMEGA.-cm.

REFERENCES:
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patent: 3963647 (1976-06-01), Straub
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patent: 4525297 (1985-06-01), Yamane et al.
patent: 4719039 (1988-01-01), Leonardi
patent: 4795763 (1989-01-01), Gluck et al.
patent: 4800126 (1989-01-01), Leonardi
patent: 4801484 (1989-01-01), Yao et al.
patent: 4888134 (1989-12-01), Kleitz et al.

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