Patents by Inventor Stephen Allen Goldman

Stephen Allen Goldman 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: 8137746
    Abstract: This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: March 20, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Michael Divo, Edward Joseph Urankar
  • Patent number: 7896168
    Abstract: A filter block may comprise activated carbon filter particles without metallic biocides. The activated carbon filter particles may have a median particle size of less than or equal to about 90 microns and having a particle span of less than or equal to about 1.7. The filter block may have a permeability of greater than about 3.0×10?9 cm2 and a Filter Viruses Log Removal of greater than about 2 logs. A portion of the activated carbon filter particles may be coated with a cationic polymer. Another filter block may comprise mesoporous activated carbon filter particles without metallic biocides, wherein the mesoporous activated carbon filter particles may have a median particle size of less than or equal to about 104 ?m and a particle span of less than or equal to about 2.05, and wherein at least a portion of the filter particles may be coated with a cationic polymer. The filter block may have a permeability of greater than about 2.0×10?9 cm2 and a Filter Viruses Log Removal of greater than about 2 logs.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: March 1, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Stephen Allen Goldman, Michael Donovan Mitchell
  • Publication number: 20110015602
    Abstract: A method for making hydrophilic synthetic nonwoven webs. At least a region of 1 cm by 1 cm comprised by the web may comprise cross-linked hydrophilic polymers. The web may have a retention capacity of less than 100 g of aqueous liquid per m2 of the nonwoven fibrous web. An absorbent article comprising a hydrophilic synthetic nonwoven web.
    Type: Application
    Filed: September 28, 2010
    Publication date: January 20, 2011
    Inventors: Mattias Schmidt, Stephen Allen Goldman, Giovanni Carrara, Ekaterina Anatolyevna Ponomarenko
  • Patent number: 7794839
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: September 14, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Patent number: 7700153
    Abstract: This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400%, or even more preferably at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: April 20, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehmsperger
  • Publication number: 20090176099
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Application
    Filed: March 17, 2009
    Publication date: July 9, 2009
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Patent number: 7524561
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: April 28, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Publication number: 20090057619
    Abstract: A composition includes at least one visual indicator dye and a surfactant. Upon dilution of the composition with a volume of water a diluted product is formed, and wherein: i) the extinction coefficient of the composition is less than the extinction coefficient of the diluted product measured at a wavelength from about 400 nm to about 700 nm; ii) a ratio of an absorbance measured between about 550-650 nm and an absorbance measured between about 395-440 nm increases upon increasing dilution of the composition; and/or iii) the pKa of the composition is greater than the pKa of the diluted product. Additionally, methods for changing the visual perception of a composition comprise diluting a composition.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 5, 2009
    Inventors: Stephen Allen Goldman, John David Carter
  • Publication number: 20090023838
    Abstract: This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400%, or even more preferably at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 22, 2009
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehmsperger
  • Patent number: 7445812
    Abstract: This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400%, or even more preferably at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: November 4, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehrnsperger
  • Patent number: 7427437
    Abstract: This invention is directed to absorbent structures and preferred absorbent articles, comprising solid, typically particulate, water-swellable material that comprises coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: September 23, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Michael Divo, Edward Joseph Urankar
  • Publication number: 20080226898
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 18, 2008
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Patent number: 7402339
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 22, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Patent number: 7402554
    Abstract: A foam-generating kit contains a non-aerosol container with a foam-generating dispenser and a high surfactant microemulsion or protomicroemulsion composition having at least 20 wt % of a surfactant system and 0.5 wt % glycerol.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: July 22, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Allen Goldman, Dalen Alan Gregory, Bernard Frans DeRyck
  • Patent number: 7396585
    Abstract: This invention is directed to an absorbent structure comprising a solid, typically particulate, water-swellable material that comprises coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400% or even at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: July 8, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehrnsperger
  • Patent number: 7316323
    Abstract: A filter block having a permeability of greater than about 3.0*10?9 cm2, and a F-VLR of greater than about 99% is provided. The filter block may be made of filter particles having a median particle size of less than about 50 microns and having a particle span of about 1.4 or less. The filter blocks of the present invention can be used to make a filter for filtering liquids and more specifically, for providing potable water. The filter particles may be mesoporous. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: January 8, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Stephen Allen Goldman, Michael Donovan Mitchell
  • Patent number: 7270881
    Abstract: This invention is directed to coated water-swellable materials, typically solid, particulate, water-swellable materials, i.e. materials that comprise hydrogel-forming polymers, whereof at least a part is coated with a coating, which substantially does not break when the polymers swell, as set out in the method herein. Said coating is present at a level of at least 1% by weight of the water-swellable material. The coating comprises preferably an elastomeric polymeric material. The invention also relates products, e.g., disposable absorbent articles, comprising such coated water-swellable material.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: September 18, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
  • Patent number: 6921574
    Abstract: The present invention relates to the use, for adhesion on hair or fiber-populated surfaces, of hydrogel adhesive characterized by a G?25, (1 rad/sec) or below 1000 Pa, resulting in embedding of the hair of fiber and good adhesion properties on the surface. The invention also encompasses Personal Care Products and Surface Care Articles containing the hydrogel compositions herein.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: July 26, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Fabio Cinelli, Peter Coles, Stephen Allen Goldman, Mario Romano
  • Patent number: 6764476
    Abstract: The present invention provides liquid handling member which is capable of rapidly distributing the acquired liquid parallel to its surface. The present invention further provides a device for handling urine which comprises the liquid handling member.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: July 20, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Mattias Schmidt
  • Publication number: 20040115251
    Abstract: The present invention relates to hydrogel adhesives for attachment to mammalian skin which exhibit particularly good attachment in excess moisture conditions, through the solution of the rheology conditions and level of monomers in salt form.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 17, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Stephen Allen Goldman, Wolfgang Edgar Huhn