Pressure roller

Details Pressure roller Pressure roller

1996-07-24

1998-07-21

Cuda, Irene

Roll or roller

Concentric layered annulus

Specific composition

492 59, B23P 1500

Patent

active

057827303

ABSTRACT:
A pressure roller is disclosed which comprises: a metal core; an elastic layer formed around the metal core; and a top layer provided over the elastic layer, the top layer having a thickness of not greater than 0.1 mm and being made of a fluororesin, the fluororesin having a coefficient of dynamic friction of 0.25 or more. The pressure roller is capable of forming a high quality image free of image failure and has excellent durability. The fluororesin having a coefficient of dynamic friction as high as 0.25 or more can be obtained by incorporation of a second component having high viscoelasticity into a fluororesin such as PFA, FEP, MFA or EPA.

REFERENCES:
patent: 4083092 (1978-04-01), Imperial et al.
patent: 4522866 (1985-06-01), Nishikawa et al.
patent: 5610695 (1997-03-01), Mizutani et al.
patent: 5640662 (1997-06-01), Sugimoto et al.

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