Patents by Inventor Hossam Hassan Tantawy
Hossam Hassan Tantawy 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).
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Publication number: 20150038396Abstract: A process of making a granular detergent composition comprising the steps of: a) forming an aqueous detergent slurry; b) spray drying said aqueous detergent slurry to form a plurality of spray-dried detergent particles; c) forming an emulsion comprising a surfactant; and d) adding the emulsion from step c) to at least a portion of said plurality of spray-dried detergent particles.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Hossam Hassan TANTAWY, Sabrina Beatrice Danielle GAULT, Andrew Brian Greenaway PATTON, Adam PORTER, Stephen John WALKER, Hossein AHMADIAN
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Publication number: 20150038394Abstract: A process of making a granular detergent composition comprising the steps of: a) forming an aqueous detergent slurry; b) spray drying said aqueous detergent slurry to form a plurality of spray-dried detergent particles; c) forming a mixture comprising a surfactant and an amphiphilic graft co-polymer; d) emulsifying the mixture from step (c); and e) adding the emulsion from step d) to at least a portion of said plurality of spray-dried detergent particles; wherein an optical brightener is added to the mixture in step c) or an optical brightener is added to the emulsion once it is formed in step d) or a mixture thereof.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventor: Hossam Hassan TANTAWY
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Publication number: 20150038395Abstract: A process of making a granular detergent composition comprising the steps of: a) forming an aqueous detergent slurry; b) spray drying said aqueous detergent slurry to form a plurality of spray-dried detergent particles; and c) forming an emulsion comprising a surfactant and an amphiphilic graft co-polymer, d) adding the emulsion from step c) to at least a portion of said plurality of spray-dried detergent particles.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Hossam Hassan TANTAWY, Sabrina Beatrice Danielle GAULT, Andrew Brian Greenaway PATTON, Adam PORTER, Stephen John WALKER, Hossein AHMADIAN
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Publication number: 20150038397Abstract: A process of making a granular detergent composition comprising the steps of: a) forming an aqueous detergent slurry; b) spray drying said aqueous detergent slurry to form a plurality of spray-dried detergent particles; c) forming an emulsion comprising a polymer; and d) adding the emulsion from step c) to at least a portion of said plurality of spray-dried detergent particles.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Hossam Hassan TANTAWY, Sabrina Beatrice Danielle GAULT, Andrew Brian Greenaway PATTON, Adam PORTER, Stephen John WALKER, Hossein AHMADIAN
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Patent number: 8906842Abstract: The present invention is a spray-dried powder comprising: (i) from 20 to 80 wt % of a first spray-dried particle comprising less than 5 wt % sulphate, anionic detersive surfactant and having a bulk density of from 300 g/l to 450 g/l: and (ii) from 20 to 80 wt % of a second spray-dried particle comprising at least 45 wt % sulphate, 0 wt % to 15 wt % anionic detersive surfactant, and having a bulk density of from 350 g/l to 700 g/l.Type: GrantFiled: May 21, 2013Date of Patent: December 9, 2014Assignee: The Procter & Gamble CompanyInventors: Hossam Hassan Tantawy, Andres Arturo Martinez-Guzman, Andre-Brian Greenaway Patton, Adam Porter
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Patent number: 8901065Abstract: The present invention is to a process for preparing a spray-dried detergent powder comprising: (a) forming an aqueous detergent slurry in a mixer; (b) transferring the aqueous detergent slurry from the mixer to a pipe leading through a first pump and then through a second pump to a spray nozzle; (c) contacting a liquid detergent ingredient having a viscosity of less than 2 Pa·s to the aqueous detergent slurry in the pipe after the first pump and before the second pump to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein a nitrogen-rich gas is introduced between the first and second pumps.Type: GrantFiled: February 20, 2013Date of Patent: December 2, 2014Assignee: The Procter & Gamble CompanyInventors: Hossam Hassan Tantawy, Larry Savio Cardozo, Andre-Brian Greenaway Patton
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Patent number: 8802615Abstract: A process for making a particle comprising at least 45 wt % sulphate, from 0 wt % to 15 wt % anionic detersive surfactant, and having a bulk density of from 350 g/l to 700 g/l, comprising the steps of; (a) preparing an aqueous slurry comprising sulphate, and optionally detersive surfactant; (b) drying the particle; and wherein the sulphate added to the aqueous slurry has a volume average particle size of from 10 micrometers to 50 micrometers.Type: GrantFiled: February 20, 2013Date of Patent: August 12, 2014Assignee: The Procter & Gamble CompanyInventors: Andres Arturo Martinez-Guzman, Adam Porter, Hossam Hassan Tantawy, Nigel Patrick Somerville-Roberts, Alan Thomas Brooker
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Publication number: 20130324452Abstract: The present invention is a spray-dried powder comprising: (i) from 20 to 80 wt % of a first spray-dried particle comprising less than 5 wt % sulphate, anionic detersive surfactant and having a bulk density of from 300 g/l to 450 g/l: and (ii) from 20 to 80 wt % of a second spray-dried particle comprising at least 45 wt % sulphate, 0 wt % to 15 wt % anionic detersive surfactant, and having a bulk density of from 350 g/l to 700 g/l.Type: ApplicationFiled: May 21, 2013Publication date: December 5, 2013Applicant: The procter & Gamble CompanyInventors: Hossam Hassan TANTAWY, Andres Arturo Martinez-Guzman, Andre-Brian Greenaway PATTON, Adam PORTER
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Publication number: 20130324454Abstract: The present invention is to a laundry detergent powder comprising: (i) from 20 to 80 wt % of a first particle comprising less than 55 wt % sulphate, anionic detersive surfactant, and having a bulk density of from 300 g/l to 1100 g/l: and (ii) from 20 to 80 wt % of a second particle comprising at least 55 wt % sulphate and, having a bulk density of from 350 g/l to 600 g/l, and a process to making the laundry detergent powder.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Applicant: The Procter & Gamble CompanyInventors: Hossam Hassan TANTAWY, Andres Arturo MARTINEZ-GUZMAN, Nigel Patrick SOMERVILLE-ROBERTS, Alan Thomas BROOKER, David James PARMLEY, Victor Stuart REID, Colin URE, Carly PICKERING
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Publication number: 20130324453Abstract: A process for making a particle comprising at least 45 wt % sulphate, from 0 wt % to 15 wt % anionic detersive surfactant, and having a bulk density of from 350 g/l to 700 g/l, comprising the steps of; (a) preparing an aqueous slurry comprising sulphate, and optionally detersive surfactant; (b) drying the particle; and wherein the sulphate added to the aqueous slurry has a volume average particle size of from 10 micrometers to 50 micrometers.Type: ApplicationFiled: February 20, 2013Publication date: December 5, 2013Applicant: THE PROCTER & GAMBLE COMPANYInventors: Andres Arturo MARTINEZ-GUZMAN, Adam PORTER, Hossam Hassan TANTAWY, Nigel Patrick SOMERVILLE-ROBERTS, Alan Thomas BROOKER
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Publication number: 20130320575Abstract: The present invention is to a process for preparing a spray-dried detergent powder comprising: (a) forming an aqueous detergent slurry in a mixer; (b) transferring the aqueous detergent slurry from the mixer to a pipe leading through a first pump and then through a second pump to a spray nozzle; (c) contacting a liquid detergent ingredient having a viscosity of less than 2 Pa·s to the aqueous detergent slurry in the pipe after the first pump and before the second pump to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein a nitrogen-rich gas is introduced between the first and second pumps.Type: ApplicationFiled: February 20, 2013Publication date: December 5, 2013Applicant: The Procter & Gamble CompanyInventors: Hossam Hassan TANTAWY, Larry Savio CARDOZO, Andre-Brian Greenaway PATTON
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Publication number: 20130324456Abstract: The present invention is a spray-dried powder comprising: at least 5 wt % of a spray-dried particle comprising at least 40 wt % anionic detersive surfactant, from 15 to 40 wt % carbonate and less than 20 wt % sulphate and having a bulk density of from 300 g/l to 450 g/l.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Inventors: Hossam Hassan TANTAWY, Adam PORTER, Philip David DORGAN
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Patent number: 8568629Abstract: A process for preparing a spray-dried powder having: (i) detersive surfactant; and (ii) other detergent ingredients; wherein the process has the steps of: (a) forming an aqueous detergent slurry in a mixer; (b) transferring the aqueous detergent slurry from the mixer in a pipe leading through at least one pump to a spray nozzle; (c) contacting a detergent ingredient to the aqueous detergent slurry in the pipe after the mixer and before the spray nozzle to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein in step (c) the aqueous detergent slurry and the resultant mixture are in laminar flow, and wherein in step (c) the ratio of (i) the flow rate of the aqueous detergent slurry in kgmin?1 to (ii) the flow rate of the detergent ingredient in kgmin?1 is in the range of from 1 to 70.Type: GrantFiled: December 15, 2010Date of Patent: October 29, 2013Assignee: The Procter & Gamble CompanyInventors: Larry Savio Cardozo, Hossam Hassan Tantawy, James Robert Lickiss, Nigel Patrick Somerville Roberts
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Patent number: 8435936Abstract: A process for preparing a spray-dried detergent powder having: (i) detersive surfactant; and (ii) other detergent ingredients; wherein the process includes the steps of: (a) forming an aqueous detergent slurry in a mixer; (b) transferring the aqueous detergent slurry from the mixer to a pipe leading through a first pump and then through a second pump to a spray nozzle; (c) contacting a detergent ingredient to the aqueous detergent slurry in the pipe after the first pump and before the second pump to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein the pressure drop between (i) the pressure in the pipe at the outlet of the first pump to (ii) the pressure in the pipe at the inlet to the second pump is less than 8×105 Pa.Type: GrantFiled: December 15, 2010Date of Patent: May 7, 2013Assignee: The Procter & Gamble CompanyInventors: Larry Savio Cardozo, Hossam Hassan Tantawy, James Robert Lickiss, Nigel Patrick Somerville Roberts
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Patent number: 8361357Abstract: A process for preparing a spray-dried detergent powder having: (i) detersive surfactant; and (ii) other detergent ingredients; wherein the process has the steps of: (a) dosing an aqueous detergent slurry into a drop tank; (b) transferring the aqueous detergent slurry from the drop tank to a pipe, and transferring the aqueous detergent slurry along the pipe through at least one pump to a spray nozzle; (c) contacting a detergent ingredient to the aqueous detergent slurry in the pipe to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein the ratio of (i) the volume of the pipe of step (b) in liters to (ii) the volume of the drop tank of step (a) in liters is less than 1:1.Type: GrantFiled: December 15, 2010Date of Patent: January 29, 2013Assignee: The Procter & Gamble CompanyInventors: Larry Savio Cardozo, Hossam Hassan Tantawy, James Robert Lickiss, Nigel Patrick Somerville Roberts
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Publication number: 20120245073Abstract: Spray-dried laundry detergent particles wherein from 5 wt % to 25 wt % of the particles are small particles having a particle size of less than 250 micrometers, wherein from 75 wt % to 95 wt % of the particles are large particles having a particle size of 250 micrometers or greater, wherein the ratio of the organic carbon content of the small particles in weight percent to the organic carbon content of the large particles in weight percent is in the range of from 1.00 to 1.20, and wherein the water-soluble inorganic salt has a volume average particle size in the range of from 10 micrometers to 50 micrometers.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Inventors: Hossam Hassan TANTAWY, Andrew Latimer, Andrew Brian Greenaway Patton
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Publication number: 20120245072Abstract: Spray-dried laundry detergent particles including: (a) organic anionic detersive surfactant; (b) water-soluble inorganic salt selected from the group consisting of sodium carbonate and/or sodium sulphate; (c) essentially no zeolite builder; (d) essentially no phosphate builder; (e) essentially no bleach; (f) essentially no clay: (g) essentially no non-ionic detersive surfactant; and (h) other detergent ingredients, wherein from 5 wt % to 25 wt % of the particles are small particles having a particle size of less than 250 micrometers, wherein from 75 wt % to 95 wt % of the particles are large particles having a particle size of 250 micrometers or greater, wherein the ratio of (i) the organic carbon to inorganic carbon weight ratio of the small particles to (ii) the organic carbon to inorganic carbon weight ratio of the large particles is in the range of from 1.00 to 1.25, and wherein the water-soluble inorganic salt has a volume average particle size in the range of from 10 micrometers to 50 micrometers.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Inventors: Hossam Hassan Tantawy, Andrew Latimer, Andrew Brian Greenaway Patton
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Publication number: 20120153521Abstract: A process for preparing a spray-dried detergent powder having: (i) detersive surfactant; and (ii) other detergent ingredients; wherein the process has the steps of: (a) dosing an aqueous detergent slurry into a drop tank; (b) transferring the aqueous detergent slurry from the drop tank to a pipe, and transferring the aqueous detergent slurry along the pipe through at least one pump to a spray nozzle; (c) contacting a detergent ingredient to the aqueous detergent slurry in the pipe to form a mixture; (d) spraying the mixture through the spray nozzle into a spray-drying tower; and (e) spray-drying the mixture to form a spray-dried powder, wherein the ratio of (i) the volume of the pipe of step (b) in litres to (ii) the volume of the drop tank of step (a) in litres is less than 1:1.Type: ApplicationFiled: December 15, 2010Publication date: June 21, 2012Inventors: Larry Savio Cardozo, Hossam Hassan Tantawy, James Robert Lickiss, Nigel Patrick Somerville Roberts
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Publication number: 20110257067Abstract: A process for making a detergent composition including the step of forming a low-water-containing surfactant mixture including: i) a hexagonal-phase-in-water-forming surfactant; and ii) a sulphonate detersive surfactant.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Inventors: Nigel Patrick Somerville Roberts, Hossam Hassan Tantawy, Eric San Jose Robles, Marc Stephen Bardsley
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Publication number: 20110257066Abstract: Preparation of solid free flowing detergent composition by spray drying a chemically simple slurry as well as compositions comprising chemically simple spray dried particlesType: ApplicationFiled: April 11, 2011Publication date: October 20, 2011Inventors: Nigel Patrick Somerville Roberts, Hossam Hassan Tantawy, James Robert Lickiss, Paul R. Mort, III