Patent · US Expired

Stripping fingers for copying machine

US5518781A · kind A · utility

7Cited by
1References
10Claims
0Family size

Assignees

Inventors

Key dates

Filing dateDec 7, 1993
Grant dateMay 21, 1996
Priority date
Expiry dateDec 7, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31786
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Stripping fingers for use in a copying machine, molded of a liquid crystal polyester resin composition made up of a liquid crystal polyester having a flow temperature of 340.degree. C. or higher and titanium oxide whiskers. The stripping fingers have excellent heat deflection resistance, heat aging resistance, thermal shock resistance, heat load resistance, low attack on the counter roller, good shape retainability of the finger edges, and good non-stick property against toner. Coating with PFA at 330.degree. C. or higher on the stripping finger increases non-tackiness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.