Patents Represented by Attorney Brian M. Bolam

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  • Process for making a detergent particle
    Patent number: 6221430
    Abstract: There is provided a process for applying a coating to a base particle comprising a hygroscopic material, particularly sodium silicate, comprising the steps of (i) spraying an aqueous mixture comprising organic binder and optionally a dyestuff onto the base particle; and (ii) drying the particle to obtain a finished particle wherein the weight ratio of hygroscopic material to organic binder in the finished particle is from 1000:1 to 10:1, expressed on a dry weight basis. Detergent compositions containing the resulting particles are also provided.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: April 24, 2001
    Assignee: The Procter & Gamble Company
    Inventor: Michael Frederick Tompsett
  • Process for making a detergent composition by non-tower process
    Patent number: 6211137
    Abstract: A non-tower process for continuously preparing granular detergent compositions having a density of at least of about 600 g/l comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, in a mixer, wherein first agglomerates are formed and (b) granulating the first agglomerates in one or more fluidizing apparatus.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: April 3, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Wayne Edward Beimesch, Jose Francisco Correa Romo, Steven Barrett Rogers
  • Process for making a detergent composition by non-tower process
    Patent number: 6211138
    Abstract: A non-tower process for continuously preparing granular detergent compositions having a density of at least of about 600 g/l comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, while wetting the surfactant coated with the fine powder with finely atomized liquid, in a mixer, wherein first agglomerates are formed and (b) granulating the first agglomerates in one or more fluidizing apparatus.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: April 3, 2001
    Assignee: The Procter & Gamble Company
    Inventor: Wayne Edward Beimesch
  • Process for manufacture of high density detergent granules
    Patent number: 6207635
    Abstract: A process for preparing detergent agglomerates is disclosed. The process includes the steps of (a) preparing a mixture of detergent components in a mixer, and (b) agglomerating the mixture from step (a) in a moderate speed mixer to produce detergent agglomerates. The detergent components include (1) from about 20% to about 35% of a surfactant compound selected from the group consisting of anionic surfactants and acid precursors of anionic surfactants; (2) from about 0% to about 65% of a particulate phosphate builder selected from the group consisting of polyphosphate, pyrophosphate, and mixtures thereof; (3) from about 6% to about 60% of a particulate carbonate selected from the group consisting of sodium carbonate, potassium carbonate, and mixtures thereof.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: March 27, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Donald Scott Adams, Bruce Albert Yeazell, Eric Fitzgerald Riddick, Junan Kao
  • Bleaching compounds comprising substituted benzoyl caprolactam bleach activators
    Patent number: 6197737
    Abstract: Laundry detergents and bleaching systems which comprise substituted benzoyl caprolactam bleach activators are presented. The bleach activators are effective under mixed soil conditions, especially mixtures of hydrophobic and hydrophilic soils and stains.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 6, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Alan David Willey, Michael Eugene Burns
  • Dishwashing detergent compositions containing alkanolamine
    Patent number: 6172021
    Abstract: The present invention relates to detergent compositions containing alkaolamine, preferably triethanolamines, divalent ions, chelants, and amphoteric surfactants. More particularly, the invention is directed to detergent compositions for hand dishwashing which has improved grease removal performance and benefits in sudsing. The detergent compositions of this invention can be in any form, including granular, gel or liquid. Highly preferred embodiments are in liquid form.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: January 9, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Kofi Ofosu-Asante, Robert N. Owens
  • Rinsing compositions containing an amino tricarboxylic acid and an organic polymer
    Patent number: 6172036
    Abstract: There is provided a rinse aid composition containing an amino tricarboxylic acid or its salts or complexes. The pH of said composition as a 1% solution in distilled water at 20°C. is preferably less than 7.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: January 9, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Graeme Duncan Cruickshank, Peter Andrew Smith
  • Process for making a detergent composition by non-tower process
    Patent number: 6172034
    Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, in a mixer, wherein first agglomerates are formed, (b) thoroughly mixing the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) spraying finely atomized liquid onto the second agglomerates in a mixer.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: January 9, 2001
    Assignee: The Procter & Gamble
    Inventors: Angela Gloria Del Greco, Manivannan Kandasamy
  • Detergent composition comprising acrylic acid-based polymer and amino tricarboxylic acid-based compound
    Patent number: 6165970
    Abstract: There is provided a detergent composition comprising (a) an organic polymer containing acrylic acid or its salts, having an average molecular weight of less than 15,000; and (b) an amino tricarboxylic acid or its salts or complexes or any mixture thereof exhibiting improved soil and stain removal.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: December 26, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Fiona Susan Williams (nee Mac Beath), David Jonathan Kitko, Susumu Murata, Toshiko Tsunetsugu, Shuichi Tsunetsugu
  • Process and composition for detergents
    Patent number: 6162784
    Abstract: Disclosed is a process for making a detergent composition containing a protease enzyme comprising: i) admixing a detergent surfactant and an acid source to form a surfactant/acid mixture; ii) forming an agglomerated surfactant/acid mix; and iii) adding an enzyme to the composition.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: December 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Robin Gibson Hall, Christian Leo Marie Vermote
  • Light-duty liquid or gel dishwashing detergent compositions having beneficial skin conditioning, skin feel and rinsability aesthetics
    Patent number: 6162778
    Abstract: Liquid and gel dishwashing detergent compositions which exhibit good cleaning performance and desirable skin feel and rinsability aesthetics are disclosed. Such compositions comprise detergent surfactants, a nonionic surfactant- and hydrotrope-containing skin feel/rinsability enhancing system and small amounts of selected skin conditioning protease enzymes. Such compositions additionally will preferably contain suds boosters and divalent metal cations.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: December 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Kirsten Louise McKillop, Peter Robert Foley, Paul Jerome Crabtree, James C. T. R. Burckett-St. Laurent, Joanna Margaret Clarke, Suchareeta Patil
  • Compositions comprising hydrophilic silica particulates
    Patent number: 6159927
    Abstract: The present invention relates to structured surfactant compositions comprising a detergent surfactant and hydrophilic silica particulates to be used in granular detergent compositions. The preferred silica particulate is hydrophilic precipitated silica. The process for making a structured surfactant composition comprising a detergent surfactant and hydrophilic silica particulates is also included. The present invention encompasses a structured surfactant composition consisting essentially of: (a) from about 35% to about 60% of a detergent surfactant; (b) from about 1% to about 20% of hydrophylic, finely-divided silica particulate; and (c) from about 15% to about 25% moisture.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 12, 2000
    Assignee: The Procter & Gamble Company
    Inventor: Manivannan Kandasamy
  • Rinse added fabric softening compositions and method of use for the delivery of fragrance precursors
    Patent number: 6156710
    Abstract: Rinse added fabric softening compositions containing pro-fragrant acetals or ketals which hydrolyze upon exposure of surfaces rinsed in solution of said compositions to a reduction in pH, thereby releasing a fragrance which is characteristic of one or more of the hydrolysis products.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: December 5, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, John Cort Severns, Frederick Anthony Hartman, Jill Bonham Costa, John Michael Gardlik, Toan Trinh, Scott William Waite
  • Process for making detergent compositions
    Patent number: 6156718
    Abstract: A process for making a detergent composition comprises the steps of: (i) mixing together at least two non-surfactant additives to form a premix; (ii) spraying all of the nonionic surfactant on to the premix to form a first intermediate particle; (iii) subsequently mixing the first intermediate particle with a second intermediate particle, wherein the second intermediate particle comprises anionic surfactant.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: December 5, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Scott John Donoghue, Marcel Karel Nelis Liplijn, Carole Patricia Denise Wilkinson
  • Process for making a low density detergent composition by non-tower process
    Patent number: 6156719
    Abstract: A non-tower process for continuously preparing granular detergent composition having a low density, preferably about 300 g/l to about 600 g/l is provided. The process comprises the steps of (a) (i) dispersing an aqueous or non-aqueous surfactant, and (ii) coating the surfactant with fine powders having a diameter from 0.1 to 500 microns, in the mixer which is operated under certain conditions to obtain irregular shape granules and excessive fine powders and, (b) spraying on finely atomized liquid to the irregular shape granules and excessive fine powders from step (a), in a mixer which is operated under certain conditions to bind the excessive fine powders onto the irregular-shaped granules.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: December 5, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Angela Gloria Del Greco, Manivanan Kandasamy
  • Process for making a detergent composition by non-tower process
    Patent number: 6150323
    Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder in a mixer, wherein first agglomerates are formed, (b) thoroughly mixing the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) granulating the second agglomerates in one or more fluidizing apparatus. The process can also comprise further step (b'), i.e., spraying finely atomized liquid onto the second agglomerates in a mixer, between step (b) and step (c).
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: November 21, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Angela Gloria Del Greco, Wayne Edward Beimesch, Manivannan Kandasamy
  • Process for making a detergent composition by non-tower process
    Patent number: 6143711
    Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns in a mixer fitted with choppers, and (b) granulating the agglomerates in one or more fluidizing apparatus, wherein finely atomized liquid is sprayed onto the first agglomerates in a mixer between step (a) and (b).
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: November 7, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Angela Gloria Del Greco, Wayne Edward Beimesch
  • Process for producing granular detergent components or compositions
    Patent number: 6140301
    Abstract: A process for the preparation of a granular detergent composition or component having a bulk density greater than 650 g/l comprises the step of dispersing a liquid binder throughout a powder stream in a high speed mixer to form granular agglomerates, wherein the product stream comprises crystalline zeolite. A having an oil absorbing capacity of at least 40 ml/100 g.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: October 31, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Peter Rutherford Brougham, George Burgess
  • Wet cleaning of delicate, non-structured garments with minimized wrinkling, shrinkage and color damage
    Patent number: 6139587
    Abstract: A method for laundering non-structured garments which are unsuitable for water washing and which are to be cleaned without wrinkling, shrinkage or color damage.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: October 31, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Harikrishnan Achuthan Nair, Melissa LeAnn Campbell
  • Process for making a detergent composition by non-tower process
    Patent number: 6136777
    Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the overall steps of: (a) dispersing a surfactant, and coating the surfactant with fine powder in a mixer, wherein first agglomerates are formed; (b) spraying finely atomized liquid onto the first agglomerates in a mixer, wherein second agglomerates are formed; and (c) granulating the third agglomerates in one or more fluidizing apparatus. The process is improved by further step (b'), by thoroughly mixing the second agglomerates in a mixer, between step (b) and step (c), wherein, in step (b'), choppers are used to reduce the amount of oversized agglomerates.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 24, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Angela Gloria Del Greco, Wayne Edward Beimesch, Manivannan Kandasamy