Patents by Inventor Robert Alan Hunter

Robert Alan Hunter 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).

  • Publication number: 20100216684
    Abstract: The invention relates to a process for the manufacture of core-shell perfume particles by emulsion polymerisation and to the products obtainable by such a process. The core of the particles comprises a perfume and the shell (which preferably comprises an aminoplast polymer) also comprises a non-ionic deposition aid (such as locust bean gum) which is substantive to textiles. The process of the invention is characterised in that, during the emulsion polymerisation step, the solids content of the polymerisation mixture does not fall below 25% wt. The particles obtained by the process are suitable for inclusion in laundry products and show significantly improved deposition and retention onto fabrics being laundered as compared with particles formed at lower solids levels.
    Type: Application
    Filed: May 16, 2008
    Publication date: August 26, 2010
    Inventors: Paul Ferguson, Anthony Hackett, Robert Alan Hunter, Christopher Clarkson Jones, Craig Warren Jones
  • Publication number: 20090312222
    Abstract: Polymer particles comprising a perfume are delivered to fabric during laundering and give long lasting adherence of the perfume to fabric during laundering. The particle comprises a polymer and is prepared using miniemulsion polymerisation. A method of depositing a perfume onto a substrate by means of such a composition is also disclosed.
    Type: Application
    Filed: November 6, 2006
    Publication date: December 17, 2009
    Inventors: Paul Ferguson, Robert Alan Hunter
  • Patent number: 7357987
    Abstract: The present invention is directed to a polysaccharide-grafted polymer particle containing a lubricant wherein the polysaccharide is preferably a ?-1,4 linked polysaccharide.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: April 15, 2008
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventor: Robert Alan Hunter
  • Patent number: 7297672
    Abstract: A composition comprising a silicone having a viscosity modifying agent dissolved or dispersed therein and a deposition aid, wherein the deposition aid comprises a polymeric material comprising one or more moieties for enhancing affinity for a fabric, especially cotton or a cotton-containing fabric and one or more silicone moieties.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: November 20, 2007
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: James Bermard Cooper, Robert Alan Hunter, Giovanni Francesco Unali
  • Patent number: 7179777
    Abstract: A laundry treatment composition comprising at least one polymeric material comprising a cationic polymer moiety and a polydialkylsiloxane moiety, and at least one other component.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 20, 2007
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: Wilfried Blokzijl, Robert John Carswell, Dominique Charmot, Robert Alan Hunter, Mingjun Liu, Paul Mansky, Victor Nava-Salgado, Giovanni Francesco Unali
  • Patent number: 6939842
    Abstract: A composition comprising a silicone and a substituted polysaccharide comprising ?1-4 linkages having covalently bonded on the polysaccharide moiety thereof, at least one deposition enhancing group which undergoes a chemical change in water at a use temperature to increase the affinity of the substituted polysaccharide to a substrate, the substituted polysaccharide further comprising one or more independently selected silicone chains.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 6, 2005
    Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.
    Inventors: Robert Alan Hunter, Christopher Clarkson Jones, Giovanni Francesco Unali
  • Publication number: 20040152621
    Abstract: A composition comprising a silicone having a perfume component dissolved or dispersed therein and a deposition aid.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 5, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Melvin Carvell, Robert Alan Hunter, Christopher Clarkson Jones, Giovanni Francesco Unali
  • Publication number: 20040138086
    Abstract: A composition comprising a silicone having a viscosity modifying agent dissolved or dispersed therein and a deposition aid, wherein the deposition aid comprises a polymeric material comprising one or more moieties for enhancing affinity for a fabric, especially cotton or a cotton-containing fabric and one or more silicone moieties.
    Type: Application
    Filed: December 3, 2003
    Publication date: July 15, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: James Bermard Cooper, Robert Alan Hunter, Giovanni Francesco Unali
  • Publication number: 20040121938
    Abstract: A laundry treatment composition comprising at least one polymeric material comprising a cationic polymer moiety and a polydialkylsiloxane moiety, and at least one other component.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Wilfried Blokzijl, Robert John Carswell, Dominique Charmot, Robert Alan Hunter, Mingjun Liu, Paul Mansky, Victor Nava-Salgado, Giovanni Francesco Unali
  • Publication number: 20030119708
    Abstract: A composition comprising a silicone and a substituted polysaccharide comprising &bgr;1-4 linkages having covalently bonded on the polysaccharide moiety thereof, at least one deposition enhancing group which undergoes a chemical change in water at a use temperature to increase the affinity of the substituted polysaccharide to a substrate, the substituted polysaccharide further comprising one or more independently selected silicone chains.
    Type: Application
    Filed: August 22, 2002
    Publication date: June 26, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Robert Alan Hunter, Christopher Clarkson Jones, Giovanni Francesco Unali