Abstract: There are provided an endless belt for image-forming apparatuses comprising a molded product produced from a blended mixture containing a thermoplastic elastomer, a thermoplastic resin and a conductive substance, the said endless belt having properties satisfying the following formulae (1), (2) and (3): SR(100V)/SR(500V)<VR(100V)/VR(250)??(1) SR(100V)/SR(500V)?30??(2) 8?VR(100V)/VR(250V)?100??(3) wherein SR(100V) represents a surface resistivity as measured by applying a voltage of 100V to the endless belt for 10 sec, SR(500V) represents a surface resistivity as measured by applying a voltage of 500V to the endless belt for 10 sec, VR(100V) represents a volume resistivity as measured by applying a voltage of 100V to the endless belt for 10 sec, and VR(250V) represents a volume resistivity as measured by applying a voltage of 250V to the endless belt for 10 sec.

Abstract: An endless belt, comprising a molding in the shape of an endless belt obtained by mixing a crystalline resin having at least one hydroxyl group, carboxyl group or an ester linkage, an amorphous resin having at least one hydroxyl group, carboxyl group or an ester linkage, and a polymerization catalyst while heating, thereby preparing a resin composition; and molding said resin composition.

Abstract: A molded part obtained by mixing a crystalline resin having at least one of a hydroxyl group, a carboxyl group and an ester linkage, an amorphous resin having at least one of a hydroxyl group, a carboxyl group and an ester linkage, and a polymerization catalyst while heating to prepare a resin composition and molding the resin composition.

Abstract: A method for producing a seamless tube for use as an intermediate image-transfer belt, comprising the step of continuously extruding an electrically conductive composition comprising the following components (a), (b) and (c) to form an unstretched seamless tube having a thickness of 50 to 1000 .mu.m and a sheet resistance of 10.sup.5 to 10.sup.13 .OMEGA./.quadrature.: (a) a thermoplastic aromatic polycarbonate resin, (b) a thermoplastic poly(alkylene terephthalate) resin and (c) acetylene black, the amount of the component (a) being from 60 to 95 wt. % of the total weight of the component (a) and the component (b) the amount of the component (b) being from 40 to 5 wt. % of the total weight of the component (a) and the component (b), and the amount of the component (c) being from 10 to 25 parts by weight for 100 parts by weight of the total amount of the component (a) and the component (b).