Patents by Inventor James J. Svarz

James J. Svarz 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).

  • Additives for increasing the separation yield of tall oil soap from black liquors
    Patent number: 7504478
    Abstract: Methods of increasing the yield of tall oil soap from a black liquor are provided. In an embodiment, the method comprises adding a separation aid to the black liquor. The separation aid comprises alkyl alcohol alkoxylates of formula RO[(CH2CHCH3O)x(CH2CH2O)y]M and combinations thereof, wherein R is straight or branched alkyl of about 8 to about 22 carbon atoms; x is 1 to about 20; y is about 20 to about 80 and M is H or an alkali metal.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: March 17, 2009
    Assignee: Nalco Company
    Inventors: James J. Svarz, Prasad Y. Duggirala, Grady E. Worley
  • ADDITIVES FOR INCREASING THE SEPARATION YIELD OF TALL OIL SOAP FROM BLACK LIQUORS
    Publication number: 20080182967
    Abstract: Methods of increasing the yield of tall oil soap from a black liquor are provided. In an embodiment, the method comprises adding a separation aid to the black liquor. The separation aid comprises alkyl alcohol alkoxylates of formula RO[(CH2CHCH3O)x(CH2CH2O)y]M and combinations thereof, wherein R is straight or branched alkyl of about 8 to about 22 carbon atoms; x is 1 to about 20; y is about 20 to about 80 and M is H or an alkali metal.
    Type: Application
    Filed: January 26, 2007
    Publication date: July 31, 2008
    Inventors: James J. Svarz, Prasad Y. Duggirala, Grady E. Worley
  • Method of deresinating pulp using alkyl alcohol alkoxylate surfactants
    Patent number: 7081183
    Abstract: This invention is a method of reducing the resin content of chemical pulps comprising heating wood chips in an aqueous alkaline medium in the presence of an effective deresinating amount of an alkyl alcohol alkoxylate of formula RO[(CH2CHCH3O)x(CH2CH2O)y]M wherein R is C4 to C40 alkyl; x is 1–50; y is 0–100 and M is H or an alkali metal, a cooking liquor comprising sodium hydroxide and sodium sulfite and the alkyl alcohol alkoxylate and a deresinated pulp prepared according to the method.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: July 25, 2006
    Assignee: Nalco Company
    Inventors: Prasad Y Duggirala, James J. Svarz
  • Method of dewatering pulp
    Patent number: 6706144
    Abstract: A method of dewatering an aqueous cellulosic pulp slurry comprising adding to an aqueous slurry of washed cellulosic pulp an effective dewatering amount of a mixture of one or more nonionic surfactants and one or more anionic surfactants.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: March 16, 2004
    Assignee: Ondeo Nalco Company
    Inventors: Gary S. Furman, Jr., James J. Svarz
  • Method of deresinating pulp using alkyl alcohol alkoxylate surfactants
    Publication number: 20040016526
    Abstract: This invention is a method of reducing the resin content of chemical pulps comprising heating wood chips in an aqueous alkaline medium in the presence of an effective deresinating amount of an alkyl alcohol alkoxylate of formula RO[(CH2CHCH3O)x(CH2CH2O)y]M wherein R is C4 to C40 alkyl; x is 1-50; y is 0-100 and M is H or an alkali metal, a cooking liquor comprising sodium hydroxide and sodium sulfite and the alkyl alcohol alkoxylate and a deresinated pulp prepared according to the method.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Prasad Y. Duggirala, James J. Svarz
  • Aqueous defoamer composition
    Patent number: 6562875
    Abstract: An aqueous emulsion containing from about 0.1 to about 70 weight percent of a mixture of a) one or more alkoxylated alcohols of formula RO(C2H4O)x(C3H6O)yZ  wherein R is straight or branched C4-C40 alkyl; x is 0 to about 25; y is less than 1 to about 50 and Z is H or the residue of an organic acid, and b) an effective emulsifying amount of one or more anionic surfactants and use of the emulsion to inhibit foaming in papermaking processes.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 13, 2003
    Assignee: Ondeo Nalco Company
    Inventors: Gilles Corbel, James J. Svarz, Alan Smith
  • Fatty acid defoamers with improved shelf life
    Patent number: 5866041
    Abstract: The present invention provides an antifoam emulsion with improved shelf-life and a method for making same. The improved shelf-life results from dispersing a fatty alcohol dispersion in an emulsion of another liquid. To this end, the antifoam emulsion of the present invention includes an internal phase of a fatty alcohol dispersion, an emulsifier, and an external phase including a water insoluble or partially miscible liquid.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: February 2, 1999
    Assignee: Nalco Chemical Company
    Inventors: James J. Svarz, Ryan A. Gabel
  • Antifoam/defoamer composition
    Patent number: 4968448
    Abstract: An antifoam/defoamer composition comprising a polyether surfactant and a polyhydric alcohol fatty acid ester. The polyether surfactant being admixed with the polyhydric alcohol fatty acid ester in a ratio in the range between 10:90 to 90:10% by weight.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: November 6, 1990
    Assignee: Nalco Chemical Company
    Inventor: James J. Svarz
  • Antifoam/defoamer composition
    Patent number: 4950420
    Abstract: An antifoam/defoamer composition a polyether surfactant and a polyhydric alcohol fatty acid ester. The polyether surfactant being admixed with the polyhydric alcohol fatty acid ester in a ratio in the range between 10:90 to 90:10% by weight.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: August 21, 1990
    Assignee: Nalco Chemical Company
    Inventor: James J. Svarz