Abstract: A process is described for the manufacture of a dimensionally stable polyester film support carrying a primer coating for improving the adhesion thereto of subsequently applied coatings, which process comprises applying to an unstretched or only monoaxially stretched polyester film support a layer of a coating composition from an aqueous dispersion, drying said layer, stretching it biaxially or in a direction perpendicular to the said first stretching operation together with the polyester film support and heat-setting the polyester film, wherein said coating composition, before drying and heat-setting, comprises a mixture of:(A) 52 to 79% by weight of a copolymeric binder comprising 60 to 95% by weight of methyl methacrylate, 3 to 20% by weight of a divinyl or diallyl monomer, 0 to 30% by weight of a plasticizing vinyl monomer, and 0 to 5% by weight of an ethylenically unsaturated carboxylic acid,(B) 0.

Abstract: A sheet or web material for use in developing and fixing toner images which comprises a support and a thermo-adhesive fixing layer defining the surface of the material on which the toner image is deposited. The thermo-adhesive fixing layer comprises an organic polymeric material and has the following properties: a surface resistance above 10.sup.10 Ohm/square, freedom from blocking at least up to 35.degree. C, a melt viscosity at 190.degree. C of not more than 120 P, and an abrasion resistance at 20.degree. C above 175 g.The process for fixing a toner image on this sheet or web material comprises the steps of image-wise depositing on said thermo-adhesive fixing layer toner particles forming with the molten thermo-adhesive fixing layer a contact angle smaller than 90.degree., heating above 90.degree.

Abstract: The adherence of hydrophilic layers to dimensionally stable polyester films is improved by means of an adhesive layer by a process comprising applying the adhesive layer to an at most monoaxially stretched polyester film, stretching the thus covered polyester film biaxially or in a direction perpendicular to the first stretching direction and heat-setting the thus treated film at 180.degree.-225.degree. C, whereafter a hydrophilic coating is applied to the heat-set adhesive layer. This adhesive layer consists essentially of about 25-60% by weight of a chlorine-containing copolymer, 15-40% by weight of a butadiene copolymer, and 2-10% by weight of a water-soluble melamine-formaldehyde or hydandoin-formaldehyde resin and is free of gelatin.