Patents by Inventor Nigel Patrick Somerville Roberts

Nigel Patrick Somerville Roberts 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: 8357650
    Abstract: A particle comprising an aminocarboxylic builder and sulphate or citrate wherein the aminocarboxylic builder and the sulphate or citrate are present in a weight ratio of from about 6:1 to about 1:1.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: January 22, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Nigel Patrick Somerville Roberts, Chris Hughes, Robert Ian Dyson
  • Patent number: 8288333
    Abstract: A process for making a detergent composition, the detergent composition comprising: a) from about 0.1% to about 50% by weight of the composition of a polymer in particulate form comprising: i) a carboxylic acid monomer; ii) more than about 5% by weight of the polymer of a sulfonic acid monomer; and iii) optionally a non-ionic monomer; and b) from about 0.01% to about 10% by weight of the composition of a hydrophilic silica. the process comprising the steps of: a) pre-mixing the polymer with the hydrophilic silica to obtain a polymer/silica premix; and b) mixing polymer/silica premix with any additional detergent components.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: October 16, 2012
    Assignee: The Procter & Gamble Company
    Inventor: Nigel Patrick Somerville Roberts
  • Patent number: 8211848
    Abstract: The present invention relates to a liquid laundry detergent composition comprising multiple catalysts and water-soluble electrolyte, wherein the ratio of (i) the total reduction in activation energy in kilojoules per mole achieved by the catalysts to (ii) the electrolytic strength of the laundry detergent composition at a concentration of 1 g/l in de-ionized water and at a temperature of 25° C. in mScm?1 laundry detergent composition is at least 1000.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: July 3, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Alan Thomas Brooker, Nigel Patrick Somerville Roberts, Gregory Scot Miracle, Neil Joseph Lant, Philip Frank Souter, Mark Forrest, Colin Ure
  • Publication number: 20120153521
    Abstract: 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: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Inventors: Larry Savio Cardozo, Hossam Hassan Tantawy, James Robert Lickiss, Nigel Patrick Somerville Roberts
  • Patent number: 8183196
    Abstract: A neutral automatic dishwashing detergent composition comprising an acidifying particle comprising an aminocarboxylic builder wherein the acidifying particle has a low hygroscopicity, a cake strength of at most 20N and a pH of from about 2 to about 6 as measured in 1% aqueous solution at 20° C.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: May 22, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Nigel Patrick Somerville Roberts, Chris Hughes, Robert Ian Dyson
  • Publication number: 20120104314
    Abstract: Layered particles that contain a source of hydrogen peroxide, a binder material, and a bleach activator are disclosed. The disclosed layered particles have improved properties and are useful, for example, for incorporation into granular detergents. A method of improving the stability of a source of hydrogen peroxide is also disclosed.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Inventors: Nigel Patrick Somerville Roberts, David James Parmley, Jerome Macaisa Castro, Vincenzo Guida, Paul R. Mort, III
  • Publication number: 20120010120
    Abstract: The present application relates to agglomerates/particles comprising encapsulated, benefit agents, compositions comprising such agglomerates/particles, and processes for making and using such agglomerates/particles and compositions comprising such agglomerates/particles. Such agglomerates/particles are processed to a form that minimizes or eliminate certain drawbacks associated with incorporating encapsulated benefit agents in consumer products.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Inventors: Nigel Patrick SOMERVILLE ROBERTS, Nicolas Guillard, Luis Martin De Juan, Johan Smets, John Allen Burdis, Daniel Ning Geng Law
  • Patent number: 8080509
    Abstract: The present invention relates to a solid laundry detergent composition having a bulk density of from 100 g/l to 500 g/l, wherein the composition comprises: (a) from 1 wt % to 70 wt % anionic detersive surfactant; (b) from 0 wt % to 10 wt % zeolite builder; and (c) from 0 wt % to 10 wt % phosphate builder; wherein the composition comprises: (I) from 61 wt % to 90 wt % low-density particulate component, wherein the low-density particulate component has a bulk density of from 100 g/l to 426 g/l, and wherein the low-density particulate component comprises inorganic material and organic material; and (II) from 10 wt % to 39 wt % high-density particulate component, wherein the high-density particulate component has a bulk density of greater than 426 g/l; wherein the ratio of (i) the weight ratio of the inorganic material to the organic material comprised in the low-density particulate component (I) to (ii) the weight ratio of the inorganic material to the organic material comprised in the solid laundry detergent co
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: December 20, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Euan John Magennis, Alan Thomas Brooker, Andrew Philip Davie, Doris Appleby, Maria Papadaki, Sylvain Andre Sorin, Paul Andrzej Luksza, Nigel Patrick Somerville Roberts
  • Publication number: 20110263473
    Abstract: A particle comprising an aminocarboxylic builder and sulphate or citrate wherein the aminocarboxylic builder and the sulphate or citrate are present in a weight ratio of from about 6:1 to about 1:1.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 27, 2011
    Inventors: Nigel Patrick Somerville Roberts, Chris Hughes, Robert Ian Dyson
  • Publication number: 20110263474
    Abstract: A neutral automatic dishwashing detergent composition comprising an acidifying particle comprising an aminocarboxylic builder wherein the acidifying particle has a low hygroscopicity, a cake strength of at most 20 N and a pH of from about 2 to about 6 as measured in 1% aqueous solution at 20° C.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 27, 2011
    Inventors: Nigel Patrick Somerville Roberts, Chris Hughes, Robert Ian Dyson
  • Publication number: 20110263472
    Abstract: A particle comprising an aminocarboxylic builder obtainable by a process comprising the steps of: a) providing a solution comprising the aminocarboxylic builder; b) optionally adding an acidifying agent; c) adding sulphate or citrate to the solution resulting from of step b) to form a mixture; and d) converting the mixture resulting from step c) into particles.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 27, 2011
    Inventors: Nigel Patrick Somerville Roberts, Chris Hughes, Robert Ian Dyson
  • Publication number: 20110257066
    Abstract: Preparation of solid free flowing detergent composition by spray drying a chemically simple slurry as well as compositions comprising chemically simple spray dried particles
    Type: Application
    Filed: April 11, 2011
    Publication date: October 20, 2011
    Inventors: Nigel Patrick Somerville Roberts, Hossam Hassan Tantawy, James Robert Lickiss, Paul R. Mort, III
  • Publication number: 20110257067
    Abstract: 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: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Inventors: Nigel Patrick Somerville Roberts, Hossam Hassan Tantawy, Eric San Jose Robles, Marc Stephen Bardsley
  • Publication number: 20110257064
    Abstract: A free-flowing solid laundry detergent composition including: (a) detersive surfactant; (b) essentially free from zeolite builder; (c) essentially free from phosphate builder; and (d) optionally, essentially free from silicate salt; wherein the composition has a reserve alkalinity to pH 7.5 of less than 15, and wherein upon dilution in de-ionised water to form a wash liquor at 10° C. temperature and at 1 g/L concentration has a pH profile such that: (i) 3 minutes after contact with water, the pH of the wash liquor is greater than 10; (ii) 10 mins after contact with water, the pH of the wash liquor is less than 9.5; (iii) 20 mins after contact with water, the pH of the wash liquor is less than 9.0; and (iv) optionally, wherein, the equilibrium pH of the wash liquor is in the range of from above 7.0 to 8.5.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 20, 2011
    Inventors: Alan Thomas Brooker, Neil Joseph Lant, Nigel Patrick Somerville Roberts, Colin Ure, Carly Pickering
  • Publication number: 20110257059
    Abstract: A process for the production of a spray-dried detergent powder including a hexagonal-phase-in-water-forming surfactant the process including the steps of: (i) spraying into a spray-drying tower a detergent slurry preferably free of a hexagonal-phase-in-water-forming surfactant; and (ii) simultaneously spraying a paste having a hexagonal-phase-in-water-forming surfactant, whereby droplets of the slurry encounter droplets or powder of the hexagonal-phase-in-water-forming surfactant paste so as to form composite granules.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Inventors: Nigel Patrick Somerville Roberts, Hossam Hassan Tantawy, Eric San Jose Robles
  • Publication number: 20110257065
    Abstract: Laundry detergent composition having: a specific bleach catalyst a hueing dye, and a source of peracid, wherein the hueing dye is released faster in a wash liquor than the bleach catalyst or the source of peracid.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Inventors: Alan Thomas Brooker, Gregory Scot Miracle, Nigel Patrick Somerville Roberts, Colin Ure
  • Publication number: 20110257058
    Abstract: Detergent composition in free flowing particulate form, wherein the detergent composition has free flowing secondary particles having a particle size of from 200 ?m to 1500 ?m and has primary particles which have a particle size of from 2 ?m to 50 ?m and which have at least 80% by weight of insoluble polymeric material.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Inventors: Nigel Patrick Somerville Roberts, Neil Joseph Lant
  • Publication number: 20110212874
    Abstract: A solid particulate laundry detergent composition including: (a) co-bleach particle including bleach activator, source of hydrogen peroxide and optionally bleach catalyst; (b) amylase with greater than 90% identity to the AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 and including: (i) mutations at one or more of positions 9, 149, 182, 186, 202, 257, 295, 299, 323, 339 and 345; and (ii) mutations at four or more of positions 118, 183, 184, 195, 320 and 458; and (c) laundry detergent ingredients.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 1, 2011
    Inventors: Michelle Meek, Philip Frank Souter, Neil Joseph Lant, Alan Thomas Brooker, Nigel Patrick Somerville Roberts
  • Publication number: 20110212873
    Abstract: A solid particulate laundry detergent composition including: (a) substituted cellulosic polymer including carboxymethyl substituent groups, and having a degree of substitution (DS) of at least 0.55, and having a degree of blockiness (DB) of at least 0.35, and having a DS+DB is in the range of from 1.05 to 2.00; (b) amylase with greater than 90% identity to the AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 and including: (i) mutations at one or more of positions 9, 149, 182, 186, 202, 257, 295, 299, 323, 339 and 345; and (ii) mutations at four or more of positions 118, 183, 184, 195, 320 and 458; and (c) laundry detergent ingredients.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 1, 2011
    Inventors: Michelle Meek, Philip Frank Souter, Neil Joseph Lant, Alan Thomas Brooker, Nigel Patrick Somerville Roberts
  • Publication number: 20110212872
    Abstract: A solid particulate laundry detergent composition including: (a) polyethylene glycol polymer including a polyethylene glycol backbone and polyvinyl acetate side chains, wherein the average molecular weight of the polyethylene glycol backbone is in the range of from 4,000 Da to 8,000 Da, wherein the molecular weight ratio of the polyethylene glycol backbone to the polyvinyl acetate side chains is in the range of from 1:1.2 to 1:2, and wherein the average number of graft sites per ethylene oxide units is in the range of from 0.2 to 0.4; (b) amylase with greater than 90% identity to the AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 and including: (i) mutations at one or more of positions 9, 149, 182, 186, 202, 257, 295, 299, 323, 339 and 345; and (ii) mutations at four or more of positions 118, 183, 184, 195, 320 and 458; and (c) laundry detergent ingredients.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 1, 2011
    Inventors: Michelle Meek, Philip Frank Souter, Neil Joseph Lant, Alan Thomas Brooker, Nigel Patrick Somerville Roberts