Patents by Inventor Satish K. Wason

Satish K. Wason 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: 5891421
    Abstract: Precipitated silica compositions, and methods for making the same, with improved dentifrice performance characteristics. In particular, precipitated silica compositions of the present invention have a 40% slurry viscosity build of less than approximately 20,000 centipoise and a 10% Brass Einlehner abrasion value of approximately 2.5 to 20.0 mg loss/100,000 rev. Precipitated silica compositions of the present invention also have reactor slurry average particle sizes (50%) of approximately 10 to 50 .mu.m. Methods for preparing precipitated silicas of the present invention include the steps of: (a) adding sodium silicate and a mineral acid to a reactor, thereby initiating a precipitation reaction between the reactor contents; and (b) subjecting the reactor contents to shearing forces as the reaction proceeds.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: April 6, 1999
    Assignee: J.M. Huber Corporation
    Inventors: Patrick D. McGill, Satish K. Wason
  • Patent number: 5869028
    Abstract: A precipitated silica composition which, when incorporated into a suitable dentifrice composition, the dentifrice composition exhibits an mPCR of about 103 to 124 and an RDA of about 88 to 102. The invention also provides a precipitated silica composition which, when incorporated into a suitable dentifrice composition, the dentifrice composition exhibits an mPCR to RDA ratio of greater than about 1.1.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: February 9, 1999
    Assignee: J.M. Huber Corporation
    Inventors: Patrick D. McGill, Satish K. Wason
  • Patent number: 5747008
    Abstract: Dental compositions comprise an abrasive, a humectant material, water and a binder. The abrasive comprises sodium aluminosilicate product having a water demand of greater than 50 g water per 100 g product, and the dental compositions comprise a water to abrasive weight ratio greater than 1.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: May 5, 1998
    Assignee: J.M. Huber Corporation
    Inventors: Satish K. Wason, James E. Sumpter
  • Patent number: 5352287
    Abstract: A composite pigment product useful as a paper filler pigment comprises a mineral nucleus coated with a substantially continuous substantially uniform coating of an active paper pigment. The active paper pigment coating is preferably formed in situ under alkaline conditions.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: October 4, 1994
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Michael C. Withiam
  • Patent number: 5312485
    Abstract: A composite pigment product useful as a paper filler pigment comprises a substantially inert mineral nucleus coated with a substantially continuous uniform coating of an active paper pigment. The active paper pigment coating is preferably formed in situ under alkaline conditions.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: May 17, 1994
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Michael C. Withiam
  • Patent number: 5302455
    Abstract: A stabilized powdered endothermic blowing agent which is a mixture of polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and the inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a composition for producing foamed products. Additives may be added to the composition which function in conjunction with the blowing agent to cause surface migration of the additives and/or improve weld line strength of the foamed products.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: April 12, 1994
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Gerry Mooney, Michael E. Tarquini, John A. Kosin, Rod A. Garcia, Claude R. Andrews
  • Patent number: 5279815
    Abstract: Novel precipitated silicon dioxide abrasive compositions which can be incorporated into therapeutic toothpaste compositions containing soluble fluoride salts are disclosed. The abrasives comprise low structure, high fluoride compatible amorphous precipitated silicon dioxides (silicas) having a controlled refractive index for use in low water clear gel dentifrice applications. Also provided are methods for preparation of the novel silicon dioxide abrasives and resulting toothpaste formulations containing such abrasives.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: January 18, 1994
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, William C. Fultz
  • Patent number: 5262239
    Abstract: A composite pigment product useful as a paper filler pigment comprises a mineral nucleus coated with a substantially continuous substantially uniform coating of an active paper pigment. The active paper pigment coating is preferably formed in situ under alkaline conditions.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: November 16, 1993
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Michael C. Withiam
  • Patent number: 5250224
    Abstract: A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: October 5, 1993
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Gerry Mooney, Claude R. Andrews, Michael E. Tarouini, John A. Kosin, Rod A. Garcia
  • Patent number: 5225177
    Abstract: Novel precipitated silicon dioxide abrasive compositions which can be incorporated into therapeutic toothpaste compositions containing soluble fluoride salts are disclosed. The abrasives comprise low structure, high fluoride compatible amorphous precipitated silicon dioxides (silicas) having a controlled refractive index for use in low water clear gel dentifrice applications. Also provided are methods for preparation of the novel silicon dioxide abrasives and resulting toothpaste formulations containing such abrasives.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: July 6, 1993
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, William C. Fultz
  • Patent number: 5223235
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: June 29, 1993
    Assignee: J. M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5219660
    Abstract: A composite pigment product useful as a paper filler pigment comprises a substantially inert mineral nucleus coated with a substantially continuous uniform coating of an active paper pigment. The active paper pigment coating is preferably formed in situ under alkaline conditions.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: June 15, 1993
    Inventors: Satish K. Wason, Michael C. Withiam
  • Patent number: 5171365
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: December 15, 1992
    Assignee: J. M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5141907
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: August 25, 1992
    Assignee: J.M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5106534
    Abstract: A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: April 21, 1992
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Gerry Mooney, Claude R. Andrews, Michael E. Tarquini, John A. Kosin, Rod A. Garcia
  • Patent number: 5081085
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: January 14, 1992
    Assignee: J. M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5076889
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxides and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: December 31, 1991
    Assignee: J.M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5035873
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is the alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compostions and is an integer greater than 2.0, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 30, 1991
    Assignee: J. M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 5009810
    Abstract: A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, and polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: April 23, 1991
    Assignee: J. M. Huber Corporation
    Inventors: Satish K. Wason, Gerry Mooney, Claude R. Andrews, Michael E. Tarquini, John A. Kosin, Rod A. Garcia
  • Patent number: RE35239
    Abstract: A stabilized powdered endothermic blowing agent .[.which.]. is a mixture or a polycarboxylic acid and an inorganic carbonate, .[.and.]. .Iadd.the .Iaddend.polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: May 14, 1996
    Assignee: J.M. Huber Corporation
    Inventors: Satish K. Wason, Gerry Mooney, Claude R. Andrews, Michael E. Tarquini, John A. Kosin, Rod A. Garcia