Abstract: A lubricative resin composition and a slide bearing made from such a resin. Even after a long-time slide movement, the friction coefficient is kept stably low and the wear is small. Moldability is also good. The lubricative resin composition is made up of 80-99.5 wt % of a synthetic resin which is either a mixture of 30-95 wt % of a polyamide resin and 5-70 wt % of a polyolefin, or a polyamide resin, and 0.5-20 wt % of a fatty acid having a carbon number of 10 or over and a melting point of 30° C. or under, such as montanic acid or stearic acid. A slide bearing is made from such a resin composition. Such slide bearings are used to support rotary shafts in a developing device for developing static latent images.

Abstract: A heat-resistant, lubricative resin composition which can withstand temperatures of 250-270.degree. C., which is wear-resistant and low in friction, and which is less likely to attack a soft alloy such as aluminum alloy, and a high-performance, heat-resistant sliding bearing formed from the abovementioned heat-resistant, lubricative resin composition.

Abstract: Compositions for a tip seal for a scroll type compressor are proposed which are low in friction coefficient, high fluidity in a molten state and highly durable in a compressor using a substitute Freon. The composition comprises 2-10 wt % of fluororesin, 5-20 wt % of carbon fiber, and 75-93 wt % of polyphenylene sulfide resin containing 90 mol % or more of a repeating unit represented by the formula: ##STR1## The composition has a melt viscosity of 1200-3000 poise. Also, a method of manufacturing a plurality of such tip seals simultaneously is proposed.

Abstract: A polyimide resin composition for sliding members which has high heat resistance and sliding properties and excels in wear resistance under sliding conditions at high PV values and which can keep low the rate of shrinkage due to crystallization treatment. The composition is made up of 100 parts by weight of resin composition comprising 50-90% by weight of a thermoplastic polyimide resin and 50-10% by weight of graphite obtained by graphitizing a non-phenolic resin material and containing 97% or more of fixed carbon; 5-20 parts by weight of tetrafluoroethylene resin; and 5-30 parts by weight of a powdery hardened phenolic resin.