Abstract: A process for preparing a toner comprising a binder resin and a colorant, wherein the binder resin comprises a polyester resin having an acid value (AV) greater than 5 mg KOH/g, the process comprising: providing an aqueous dispersion of self-dispersed polyester resin particles and associating the polyester resin particles by means of a change in the pH of the dispersion.

Abstract: A toner comprising toner particles which comprise binder resin and colorant, wherein the binder resin is made from latexes which comprise a low molecular weight (LMW) latex of resin particles having a weight average molecular weight (Mw) less than 50,000 and a medium molecular weight (MMW) latex of resin particles having a Mw from 50,000 to 500,000, wherein the glass transition temperature (Tg) of the resin particles of the LMW latex is not greater than 52° C.

Abstract: A process for preparing a toner comprising a binder resin and a colorant, wherein the binder resin comprises a polyester resin having an acid value greater than 5 mg KOH/g, the process comprising: providing an aqueous dispersion of polyester resin particles stabilized by an ionic surfactant and then associating the polyester resin particles.

Abstract: The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group and wherein the amount of carboxy functional compound of Formula (1) provided is greater than 3% by weight, the amount of carboxy functional compound being calculated according to the following equation: amount ? ? of ? ? carboxy ? ? functional ? ? ? compound ? ? ( % ? ? weight ) = 100 × weight ? ? ? of ? ? carboxy ? ? functional ? ? compound ( weight

Abstract: The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group, on condition that the amount of carboxy functional compound of Formula (1) provided in acid and/or salt form is at least 1.

Abstract: A process for the manufacture of a toner comprising toner particles which comprise at least resin and colorant, the process comprising the steps of: providing a mixed dispersion of at least primary resin particles, primary colorant particles and a carboxy functional compound of Formula (1) and/or a salt thereof and/or a complex thereof in a liquid medium, wherein R is a carbocyclic or heterocyclic group and Z1 is a bond or a linker group, the at least primary resin particles and primary colorant particles being stabilised by two or more surfactants in the liquid medium, the surfactants comprising at least a first ionic surfactant and a second ionic surfactant of the same polarity as the first ionic surfactant, wherein the first and second ionic surfactants have different linear chain lengths; and causing the primary particles to associate.

Abstract: A process for preparing a toner comprising a binder resin and a colorant, wherein the binder resin comprises a polyester resin having an acid value (AV) greater than 5 mg KOH/g, the process comprising: providing an aqueous dispersion of self-dispersed polyester resin particles and associating the polyester resin particles by means of a change in the pH of the dispersion.

Abstract: A process for preparing a toner comprising a binder resin and a colorant, wherein the binder resin comprises a polyester resin having an acid value greater than 5 mg KOH/g, the process comprising: providing an aqueous dispersion of polyester resin particles stabilised by an ionic surfactant and then associating the polyester resin particles.

Abstract: A process for the manufacture of a toner comprising toner particles which comprise at least resin and colorant, the process comprising the steps of: providing a mixed dispersion of at least primary resin particles and primary colorant particles stabilised by two or more surfactants in a liquid medium, the surfactants comprising at least a first ionic surfactant and a second ionic surfactant of the same polarity as the first ionic surfactant, wherein the first and second ionic surfactants have different linear chain lengths; and causing the primary particles to associate.

Abstract: The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group, on condition that the amount of carboxy functional compound of Formula (1) provided in acid and/or salt form is at least 1.

Abstract: The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group and wherein the amount of carboxy functional compound of Formula (1) provided is greater than 3% by weight, the amount of carboxy functional compound being calculated according to the following equation: amount ? ? of ? ? carboxy ? ? functional ? ? ? compound ? ? ( % ? ? weight ) = 100 × weight ? ? ? of ? ? carboxy ? ? functional ? ? compound ( weight

Abstract: A toner for developing an electrostatic image comprising toner particles which include a binder resin, a wax and a colorant, wherein the wax has a melting point of between 50 and 150° C., the wax exists in the toner particles in domains of 2 ?m or less mean particle size and (a) the mean circularity of the toner particles as measured by a Flow Particle Image Analyser is at least 0.90; and (b) the shape factor, SF1, of the toner particles is at most 165. A process for the manufacture of said toner which comprises the following steps: providing a latex dispersion; providing a wax dispersion; providing a colorant dispersion; mixing the latex dispersion, wax dispersion and colorant dispersion; and causing the mixture to flocculate.

Abstract: There is described a process for producing a particulate composition comprising the steps of:

Abstract: There is described a process for producing a particulate composition comprising the steps of: (a) forming a first dispersion comprising first particles stabilised in a first fluid by a first species in an initial state, the first species changeable between the initial state and a further state, where the initial state provides (directly or indirectly) more stability to the particles within the dispersion than the further state; (b) optionally the step of forming a second dispersion comprising second particles stabilised in a second fluid, miscible with the first fluid, by a second species in the, or another, initial state, the second species also changeable between the, or another ,initial state and the, or another, further state, where said initial state provides (directly or indirectly) more stability to the particles within the dispersion than said further state; (c) after the optional step of mixing the first and second dispersions together if the second dispersion was formed in step b), changing the s

Abstract: There is described a process for producing a particulate composition comprising the steps of: (a) forming a first dispersion comprising first particles stabilized in a first fluid by first species; (b) optionally the step of forming a second dispersion comprising second particles stabilized in a second fluid, miscible with the first fluid, by second species; (c) after (or simultaneously with) the optional step of mixing the first and second dispersions together if the second dispersion was formed from step b); inducing association between the dispersed particles to form clusters; and (d) binding together the particles within the clusters; characterized in that the first and/or second particles comprise at least one polar functional group to facilitate the binding of the particles in step (d).