Stripping fingers for copying machines and printers

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

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271307, 271310, 4282921, 428325, 428328, 428330, B32B 516, B36H 2954

Patent

active

058373667

ABSTRACT:
A stripping finger for a copier having a tip acutely arcuated with extremely high precision and less likely to be deformed when heated or collided repeatedly with a roller, and capable of stably maintaining high paper stripping ability, as well as high lubricity and non-tackiness at the surface for a long time. The stripping finger is formed from a polyphenylene sulfide resin composition containing 40-70 wt % of a polyphenylene sulfide resin having a melt viscosity of 3000 poise or over at 315.degree. C., 18-30 wt % of a polytetrafluoroethylene having an average particle diameter of 1-5 .mu.m, 2-7 wt % of a polyolefin, such as a high-density polyethylene having a specific gravity of 0.942 g/cm.sup.3, and 10-40 wt % of a fibrous reinforcing material.

REFERENCES:
patent: 4806985 (1989-02-01), Foley et al.
patent: 4929983 (1990-05-01), Barton et al.
patent: 5160130 (1992-11-01), Fromm et al.
patent: 5364670 (1994-11-01), Satoji et al.
patent: 5518781 (1996-05-01), Nakamura et al.
patent: 5617197 (1997-04-01), Kawabata et al.

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