Method for producing a paper-releasing guide-claw of copying mac

Details Method for producing a paper-releasing guide-claw of copying mac Method for producing a paper-releasing guide-claw of copying mac

1990-08-30

1992-03-24

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Disparate treatment of article subsequent to working,...

Effecting temperature change

264300, 26432818, 26433112, 26433119, 271308, 271311, 271900, 355315, 524406, 524419, 524420, 524600, 524606, 525199, 525282, 528125, 528128, 528184, 528185, 528188, B29C 7102, C08G 7310, G03G 2100

Patent

active

050986279

ABSTRACT:
The present invention relates to a paper releasing guide-claw for a copying machine and a method for producing the same including molding a material containing from about 50-90% by weight of a polyimide consisting essentially of recurring units of the formula: ##STR1## from about 5 to about 40% by weight of a fibrous reinforcing material, and from about 5 to about 30% by weight of a solid lubricant, wherein the sum of the content of the fibrous reinforcing material and the solid lubricant is from about 10 to about 50% by weight, heat treating the molded guide-claw at a temperature of from about 250.degree. C. to about 340.degree. C. for a time sufficient to increase the density of the polyimide component by 1.5%.

REFERENCES:
patent: 4806985 (1989-02-01), Foley et al.
patent: 4847349 (1989-07-01), Ohta et al.
Recchia, F. P. et al., "Thermoplastic Polyimide".IN: Modern Plastics Encyclopedia 1982-1983 (New York, McGraw-Hill, 1982), pp. 82-84.
English-Language Translation of Japanese Reference (Kokai) 56-51,766 (Published 5/81).

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