Patents by Inventor Phuong-Nga Trinh

Phuong-Nga Trinh 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: 7326814
    Abstract: The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: February 5, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Elliot Band, Maurice Dery, William Joyce, Jeffrey Earl Telschow, Biing Ming Su, Michael Engel, John Nowak, Claude Peterson, Harold Providence, Phuong-Nga Trinh, Sandra Urquhart
  • Publication number: 20060210509
    Abstract: The present invention generally relates to a silicone-based hair conditioning composition having improved silicone hair conditioner deposition upon the hair. The composition of the invention comprises hair conditioning compositions having dispersed, non-volatile silicone conditioning agents, cationic conditioning agents and at least one nonionic amphiphilic polymer having at least one fatty chain and at least one hydrophilic unit.
    Type: Application
    Filed: March 21, 2005
    Publication date: September 21, 2006
    Inventors: Andress Johnson, Phuong-Nga Trinh, Bruce Beard
  • Publication number: 20060189826
    Abstract: The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product.
    Type: Application
    Filed: December 23, 2003
    Publication date: August 24, 2006
    Inventors: Elliot Band, Maurice Dery, William Joyce, Jeffrey Telschow, Biing Su, Michael Engel, John Nowak, Claude Peterson, Harold Providence, Phuong-Nga Trinh, Sandra Urouhart
  • Patent number: 6770608
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 3, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh
  • Publication number: 20020025915
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Application
    Filed: April 6, 2001
    Publication date: February 28, 2002
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh
  • Patent number: 6323167
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: November 27, 2001
    Assignee: Akzo Nobel N.V.
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh, Maurice Dery
  • Patent number: 6264931
    Abstract: A 2-in-1 conditioning shampoo includes an anionic surfactant and a cationic hair conditioning agent. The cationic hair conditioning agent is a fatty aliphatic quaternary ammonium compound having ester linkages. The cationic hair conditioning agent can be prepared by reacting an alkanol amine with a fatty acid or fatty acid ester having an aliphatic group of from about 11 to about 24 carbon atoms and thereafter quaternizing the resulting esteramine with an alkylating agent.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: July 24, 2001
    Assignee: Akzo Nobel nv.
    Inventors: Ralph Franklin, Paul Iacobucci, Dale Steichen, Diana Tang, Phuong-Nga Trinh
  • Patent number: 6037315
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 14, 2000
    Assignee: Akzo Nobel NV
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh, Maurice Dery
  • Patent number: 6004913
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di-, and tri-ester components, wherein the amount of diester quaternary is greater than about 55% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a process for preparing said softening agent.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: December 21, 1999
    Assignee: Akzo Nobel N.V.
    Inventors: Paul Albert Iacobucci, Ralph Franklin, Phuong-Nga Trinh
  • Patent number: 5939059
    Abstract: A 2-in-1 conditioning shampoo includes an anionic surfactant and a cationic hair conditioning agent. The cationic hair conditioning agent is a fatty aliphatic quaternary ammonium compound having ester linkages. The cationic hair conditioning agent can be prepared by reacting an alkanol amine with a fatty acid or fatty acid ester having an aliphatic group of from about 11 to about 24 carbon atoms and thereafter quaternizing the resulting esteramine with an alkylating agent.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: August 17, 1999
    Assignee: Akzo Nobel nv
    Inventors: Ralph Franklin, Paul Iacobucci, Dale Steichen, Diana Tang, Phuong-Nga Trinh
  • Patent number: 5916863
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 55% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a process for preparing said softening agent.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: June 29, 1999
    Assignee: Akzo Nobel NV
    Inventors: Paul Albert Iacobucci, Ralph Franklin, Phuong-Nga Trinh