Polyurethane roller with high surface resistance

Details Polyurethane roller with high surface resistance Polyurethane roller with high surface resistance

1999-07-12

2000-11-21

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428 3691, 4284258, 430110, 492 56, 492 59, B32B 2740

Patent

active

061500259

ABSTRACT:
A roller for electrophotography is made from a mixture of polyurethane, polydiene, polyether diol, a first conductive filler and a second conductive filler which catalyzes oxidation of the polydiene. The first conductive filler comprises hexahalogenated acetylacetonates. The roller has a very high outer surface electrical resistance from baking the roller to oxidize the polybutadiene. The charge roller is achieved at low production cost and functions well with charging by a DC potential and AC overlay.

REFERENCES:
patent: 5248560 (1993-09-01), Baker et al.
patent: 5434653 (1995-07-01), Takizawa et al.
patent: 5496496 (1996-03-01), Kajita et al.
patent: 5707743 (1998-01-01), Janes et al.
patent: 5874172 (1999-02-01), Beach et al.

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