Patents by Inventor Angela Gloria Del Greco

Angela Gloria Del Greco 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: 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 6121229
    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 having a diameter from 0.1 to 500 microns, in a mixer, wherein first agglomerates are formed, (b) spraying on finely atomized liquid to the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) the second agglomerates are thoroughly mixed in a mixer to provide rounding and growth.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: September 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Angela Gloria Del Greco, Manivannan Kandasamy