BIARYL POLYCARBONATE-CONTAINING INTERMEDIATE TRANSFER CARRIERS Russian patent published in 2016 - IPC G03G15/16 B41M5/40 C08L67/03 

FIELD: chemistry.

SUBSTANCE: present invention relates to an intermediate transfer carrier which contains biaryl polycarbonate. Described is an intermediate transfer carrier, comprising a carrier substrate of polyimide, polyamideimide, polyetherimide or mixtures thereof, and a layer of a mixture of a conducting component, polysiloxane and biaryl polycarbonate, wherein the biaryl polycarbonate is represented by a formula/structure wherein m is about 20 mol% and n is about 80 mol%, and wherein the biaryl polycarbonate has a number-average molecular weight of about 5000 to about 100000 and a weight-average molecular weight of about 8000 to about 300000 and where the transfer carrier senses a xerographic image and where the transfer carrier has a modulus of elasticity of about 2500 to about 5000 MPa and breaking strength of about 70 to about 150 MPa, and where the polysiloxane is polydimethyl siloxane, wherein the conducting component is carbon black and the ratio of carbon black, biaryl polycarbonate and polydimethyl siloxane is equal to 12.8/87/0.2. Also described is an intermediate transfer carrier, comprising a mixture of biaryl polycarbonate and polysiloxane and a conducting component, and having a modulus of elasticity of 3800 MPa and breaking strength of 120 MPa, wherein the mixture is easily separated from the metal substrate and wherein the biaryl polycarbonate is represented by the said formula/structure, wherein m is 20 mol% and n is 80 mol%, and wherein the biaryl polycarbonate has a number-average molecular weight of about 5000 to about 100000 and a weight-average molecular weight of about 8000 to about 300000, and where the transfer carrier senses a xerographic toner image, and wherein the biaryl polycarbonate has a glass transition temperature of about 180°C to about 300°C.

EFFECT: intermediate transfer carrier, having an improved breaking strength, with a high modulus of elasticity and excellent separation characteristics.

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