Abstract: An amorphous complex macromolecular compound is provided hat comprises in its macromolecular structure,(i) an amorphous polycondensation backbone, the corresponding backbone polymer having a Tg of at least 45.degree. C. and(ii) at least one polymer chain attached to the backbone, either terminally and/or in a side-chain, this polymer chain being derived from a polymer which on itself has an average molecular weight by number (M.sub.avg) so that 400.ltoreq.M.sub.avg .ltoreq.4000, a melting point between 50.degree. C. and 150.degree. C. and a melting range of at most 15.degree. C.There are also provided methods for the production of the amorphous complex macromolecular compound.Further are provided toner particles and toner receiving substrates comprising the amorphous complex macromolecular compound mentioned above.

Abstract: An electrostatic method for producing a master image for decorating ceramic, enamel or glass objects comprising the steps of:providing a temporary support having a surface with release properties,image-wise depositing charged toner particles, having a volume average particle size d.sub.v50t, such that 5 .mu.m<d.sub.v50t <15 .mu.m and including particles of a ceramic pigment, CP, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than 2/3 times d.sub.v50t andproviding particles of glazing material, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than d.sub.v50t, in the master image. Preferably the glazing material is formed in the master image by image-wise depositing toner particles comprising both a ceramic pigment and glazing material.

Abstract: An image receptor sheet or web material carrying a layer with a polymeric binder on a support wherein the polymeric binder is at least 50% by weight of a polysiloxane modified resin and comprises polymeric moieties derived from polyesters or addition polymers with an acid value or hydroxy value between 2 and 50 mg KOH/g of polymer and the polysiloxane moieties are derived from epoxy-terminated polysiloxanes.

Abstract: Toner particles are provided, having an average volume diameter d.sub.vt and comprising a binder resin with melting point TSM.sub.t, and comprising polymeric beads incorporated in the bulk of the toner particles, characterized in that the polymeric beads have i) a melting point TSM.sub.p in .degree.C., such that TSM.sub.p .gtoreq.TSM.sub.t +10.degree. C. and ii) an average volume diameter d.sub.vp such that 0.20.ltoreq.d.sub.vp /d.sub.vt .ltoreq.0.75.

Abstract: A dry toner powder the toner particles of which are triboelectrically negatively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain:(1) at least one triboelectrically negatively chargeable thermoplastic resin serving as binder having a volume resistivity of at least 10.sup.13 .OMEGA.-cm, and(2) at least one resistivity lowering substance being an onium compound having a volume resistivity lower than the volume resistivity of said binder, and said toner particles are free from non-resinous charge-controlling agent(s) providing negative triboelectric chargeability,wherein said substance(s) (2) is (are) capable of lowering the volume resistivity of said binder by a factor of at least 3.

Abstract: There are provided dry toner particles wherein the toner resin comprises more than 10% by weight of one or more polysiloxane modified resins. In this resin the polysiloxane moieties are attached to the other polymeric moieties (POL) of said copolymer over an ether group or an ester group. In a preferred embodiment the toner resin of the dry toner particles consists of one or more polysiloxane modified resins.

Abstract: A dry toner powder the toner particles of which are triboelectrically negatively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain:(1) one or more triboelectrically negatively chargeable thermoplastic resins serving as binder having a volume resistivity of at least 10.sup.13 .OMEGA.-cm, and(2) at least one substance having a volume resistivity lower than the volume resistivity of said binder, and wherein said substance(s) (2) is (are) capable of lowering the volume resistivity of said binder by a factor of at least 3.3 when present in said binder in a concentration of 5% by weight relative to the weight of said binder, andwherein said toner powder containing particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 .mu.m but not lower than 1 fC/10 .mu.

Abstract: A dry toner powder the toner particles of which are triboelectrically positively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain:(1) one or more triboelectrically positively chargeable thermoplastic resins serving as binder having a volume resistivity of at least 10.sup.13 .OMEGA.-cm, and(2) at least one substance having a volume resistivity lower than the volume resistivity of said binder, andwherein said substance(s) (2) when present in said binder in a concentration of 5% by weight lower(s) thereof the volume resistivity of said binder by a factor of at least 3.3, and wherein said toner powder containing particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 .mu.m but not lower than 1 fC/10 .mu.

Abstract: A dry powder toner of which the particles are electrostatically or magnetically attractable and suited for development of electrostatic charge images or magnetic patterns and wherein the composition of said powder particles includes a resin binder comprising at least one resin A and at least one resin B, characterized in that:(1) said resin(s) A and said resin(s) B each have a glass transition temperature (Tg) larger than 45.degree. C.,(2) the Tg of said resin(s) A is at least 2.5.degree. C. lower than the Tg of said resin(s) B,(3) the melt viscosity (mvA) of said resin(s) A is at least 500 poise and the melt viscosity (mvB) of said resin(s) B is within the scope of the following equation:(mvB)=F.times.(mvA),wherein F is an integer from 2 to 20, and with a maximum value of (mvB) not exceeding 15000 poise, and(4) the weight ratio of resin(s) A and resin(s) B in said powder particles is such that the deformability of the powder material as defined by test H herein is smaller than 15%.

Abstract: A dry powder toner of which the particles are electrostatically or magnetically attractable and suited for development of electrostatic charge images or magnetic patterns and wherein the composition of said powder particles includes a resin binder comprising at least one resin A and at least one resin B, characterized in that:(1) said resin(s) A and said resin(s) B each have a glass transition temperature (Tg) larger than 45.degree. C.,(2) the Tg of said resin(s) A is at least 2.5.degree. C. lower than the Tg of said resin(s) B,(3) the melt viscosity (mvA) of said resin(s) A is at least 500 poise and the melt viscosity (mvB) of said resin(s) B is within the scope of the following equation:(mvB)=F.times.(mvA),wherein F is an integer from 2 to 20, and with a maximum value of (mvB) not exceeding 15000 poise, and(4) the weight ratio of resin(s) A and resin(s) B in said powder particles is such that the deformability of the powder material as defined by test H herein is smaller than 15%.

Abstract: According to the present invention magnetic carrier particles are provided for use in magnetic brush toner-carrier development of electrostatic charge patterns, said particles incorporating finely divided magnetic pigment particles dispersed in a resin binder, characterized in that said carrier particles comprise a mixture of magnetic pigment particles wherein a portion (A) of said pigment particles has a coercive force of more than 300 Oe and another portion (B) of said pigment particles has a coercive force of less than 300 Oe, the weight ratio of said portions (A) and (B) being in the range of 0.1 to 10.