Patents by Inventor Judith Mervane Vincent

Judith Mervane Vincent 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: 6652867
    Abstract: Emulsions prepared using a silicone polyether as the surfactant are stable in an aqueous media in the presence of salts such as electrolytes, alcohols, solvents, and combinations thereof. The emulsions can be prepared by (i) polymerizing an unsaturated monomeric organic compound in water containing the monomer, a silicone polyether, a catalyst, and optional organic surfactants, until a polymer of desired molecular weight is obtained; (ii) by mechanically emulsifying a non-silicon atom containing organic oil in water using a silicone polyether with or without addition of other organic surfactants; and (iii) by mixing and adding a silicone polyether to a previously prepared emulsion.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: November 25, 2003
    Assignee: Dow Corning Corporation
    Inventors: Judith Mervane Vincent, Yihan Liu, Donald Taylor Liles
  • Publication number: 20030143176
    Abstract: Silicone oil-in-water emulsions are prepared using a silicone polyether as the surfactant, and the silicone oil-in-water emulsions are stable in an aqueous media in the presence of salts such as electrolytes, alcohols, solvents, and combinations thereof. The silicone oil-in-water emulsions are prepared by (i) polymerizing silicon atom containing monomers in water containing the monomer, a silicone polyether, a catalyst, and optionally an organic surfactant(s), until a silicone oil of a desired molecular weight is obtained. The silicone oil-in-water emulsions possess utility as additives in various coating products, personal care products, household care products, automotive care products, and petroleum products.
    Type: Application
    Filed: January 25, 2002
    Publication date: July 31, 2003
    Inventors: Yihan Liu, Judith Mervane Vincent
  • Patent number: 6297318
    Abstract: Emulsion polymerization techniques can be improved by using in the reaction, a precursor which is a cocyclic silicone which has a structure generally corresponding to the formula: where a and b have a value of 1-10; R3, R4, and R5 are alkyl groups containing 1-6 carbon atoms; and R6 is a C8 or higher alkyl group such as —(CH2)7CH3, —(CH2)11CH3, or —(CH2)15CH3. R3, R4, and R5 are preferably methyl groups.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 2, 2001
    Assignee: Dow Corning Corporation
    Inventors: Daniel Joseph Halloran, Judith Mervane Vincent
  • Patent number: 6201063
    Abstract: Emulsion polymerization techniques can be improved by using in the reaction, a precursor which is a cocyclic silicone which has a structure generally corresponding to the formula: where a and b have a value of 1-10; R3, R4, and R5 are alkyl groups containing 1-6 carbon atoms; and R6 is a C8 or higher alkyl group such as —(CH2)7CH3, —(CH2)11CH3, or —(CH2)15CH3. R3, R4, and R5 are preferably methyl groups. Aminosiloxanes or aminosilanes can also be included in this polymerization process.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: March 13, 2001
    Assignee: Dow Corning Corporation
    Inventors: Daniel Joseph Halloran, Judith Mervane Vincent
  • Patent number: 5891954
    Abstract: A solution of an alcohol stable emulsion or microemulsion containing an organopolysiloxane is made by polymerizing a cyclic siloxane in an aqueous medium containing the cyclic siloxane, a nonionic surfactant, an ionic surfactant, and a catalyst, until an organopolysiloxane of desired molecular weight is obtained; adding a silicone polyether to the emulsion or microemulsion and mixing the silicone polyether and the emulsion or microemulsion to form a blend; and adding the blend of silicone polyether and emulsion or microemulsion to aqueous alcohol. It is beneficial to cool the blend to below 20.degree.-25.degree. C. before adding it to aqueous alcohol. It is also beneficial to mix the silicone polyether and the emulsion or microemulsion without application of mechanically induced shear.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: April 6, 1999
    Assignee: Dow Corning Corporation
    Inventors: Ronald Paul Gee, Judith Mervane Vincent