Patents by Inventor Martin Russell Edwards
Martin Russell Edwards has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8475992Abstract: 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.Type: GrantFiled: June 20, 2008Date of Patent: July 2, 2013Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, John Dylan Morgan, Martin Russell Edwards, Miguel Angel Rodriguez-Vazquez, Mohammed Nawaz, Zoonia Mehmood
-
Patent number: 8435711Abstract: 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.Type: GrantFiled: October 21, 2008Date of Patent: May 7, 2013Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, John Dylan Morgan, Martin Russell Edwards
-
Patent number: 8377621Abstract: 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.Type: GrantFiled: June 20, 2008Date of Patent: February 19, 2013Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, John Dylan Morgan, Martin Russell Edwards, Miguel Angel Rodriguez-Vazquez, Mohammed Nawaz, Zoonia Mehmood
-
Publication number: 20120141934Abstract: 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.Type: ApplicationFiled: October 21, 2008Publication date: June 7, 2012Inventors: Danial Patrick Morris, John Dylan Morgan, Martin Russell Edwards
-
Patent number: 7862978Abstract: 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 ( weightType: GrantFiled: November 6, 2006Date of Patent: January 4, 2011Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Oliver Callaghan, Simon Pickard
-
Patent number: 7862979Abstract: 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.Type: GrantFiled: November 6, 2006Date of Patent: January 4, 2011Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Oliver Callaghan, Simon Pickard
-
Publication number: 20100255414Abstract: 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.Type: ApplicationFiled: April 29, 2008Publication date: October 7, 2010Inventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Simon Pickard
-
Publication number: 20100190102Abstract: 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.Type: ApplicationFiled: June 20, 2008Publication date: July 29, 2010Inventors: Daniel Patrick Morris, John Dylan Morgan, Martin Russell Edwards, Miguel Angel Rodriguez-Vazquez, Mohammed Nawaz, Zoonia Mehmood
-
Publication number: 20100173244Abstract: 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.Type: ApplicationFiled: June 20, 2008Publication date: July 8, 2010Inventors: Daniel Patrick Morris, John Dylan Morgan, Martin Russell Edwards, Miguel Angel Rodriguez-Vazquez, Mohammed Nawaz, Zoonia Mehmood
-
Publication number: 20100129751Abstract: 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.Type: ApplicationFiled: April 29, 2008Publication date: May 27, 2010Inventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Simon Pickard
-
Publication number: 20090269690Abstract: 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.Type: ApplicationFiled: November 6, 2006Publication date: October 29, 2009Inventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Oliver Callaghan, Simon Pickard
-
Publication number: 20090162774Abstract: 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 ( weightType: ApplicationFiled: November 6, 2006Publication date: June 25, 2009Inventors: Daniel Patrick Morris, Martin Russell Edwards, Mohammed Nawaz, Oliver Callaghan, Simon Pickard
-
Patent number: 7323280Abstract: 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.Type: GrantFiled: April 8, 2003Date of Patent: January 29, 2008Assignee: Fujifilm Imaging Colorants LimitedInventors: Daniel Patrick Morris, Martin Russell Edwards
-
Publication number: 20040076909Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colourable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive colour changing composition within a barrier layer which is substantially impermeable to the components of the colour changing composition or are solid particles comprising an immobilised photosensitive colour changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the colour of the particles.Type: ApplicationFiled: October 10, 2003Publication date: April 22, 2004Inventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
-
Patent number: 6649311Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colorable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive color changing composition within a barrier layer which is substantially impermeable to the components of the color changing composition or are solid particles comprising an immobilized photosensitive color changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the color of the particles.Type: GrantFiled: May 2, 2001Date of Patent: November 18, 2003Assignee: Vantico LimitedInventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
-
Patent number: 6531256Abstract: 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 sType: GrantFiled: January 10, 2000Date of Patent: March 11, 2003Assignee: Avecia LimitedInventors: Alison Dawn Bedells, Daniel Patrick Morris, Kumar Abhinava, Martin Russell Edwards, William Malcolm Logan Wood
-
Patent number: 6133336Abstract: Process for forming a selectively colored polymeric layer, or a three-dimensional article made of polymeric layers, wherein a photocurable, photocolorable composition is irradiated with a low dose of light to cure and a different, preferably higher, dose of light to color. The process is particularly useful for preparing selectively colored ornamental and industrial articles and models of plant and animal parts, especially medical models.Type: GrantFiled: August 30, 1996Date of Patent: October 17, 2000Assignee: Zeneca LimitedInventors: Ajay Haridas Popat, Martin Russell Edwards