Avecia Limited

Fujifilm Imaging Colorants, Inc.

John Dylan Morgan

Stephen William Leeming

Martin Edwards

Daniel Morris

Joanne Victoria Allen

Mohammed Nawaz

Miguel Angel Rodriguez-Vazquez

Julie Anne Fergus

Mark Thomas

Zoonia Mehmood

Janos Veres

Beverley Anne Brown

Martin Russell Edwards

Daniel Patrick Morris

Wedge

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.

Toner comprising polyester, process for making the toner and uses thereof

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&#xb0; C.

Toners made from latexes

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.

A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1:in which Yrepresents N, P, S, As and/or Se. Arand Ar, which may the same or different, represent independently a multivalent, optionally substituted aromatic group, and Arrepresents independently a mono or multivalent, optionally substituted aromatic group. At least one terminal group is attached in the polymer to the Ar, Arand optionally Argroups located at the end of the polymer chains, so as to cap the polymer chains and prevent further polymer growth. At least one terminal group is derived from at least one end capping reagent used in the polymerization to form the polymeric material to control the molecular weight thereof. A charge transport material comprising such polymers is useful in electroreprographic and electroluminescent devices. These polymers may be made by controlling their molecular weight with an end capping reagent.

Compound, compositions and use

Process for the isolation of polymer fractions

Polymeric material comprising N, P, S, As, or Se and composition for charge transport material

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Manchester, United Kingdom

John Dylan Morgan