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).
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Patent number: 8137746Abstract: 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: GrantFiled: August 5, 2004Date of Patent: March 20, 2012Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Michael Divo, Edward Joseph Urankar
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Patent number: 7896168Abstract: 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: GrantFiled: November 19, 2007Date of Patent: March 1, 2011Assignee: The Procter & Gamble CompanyInventors: Dimitris Ioannis Collias, Stephen Allen Goldman, Michael Donovan Mitchell
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Publication number: 20110015602Abstract: 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: ApplicationFiled: September 28, 2010Publication date: January 20, 2011Inventors: Mattias Schmidt, Stephen Allen Goldman, Giovanni Carrara, Ekaterina Anatolyevna Ponomarenko
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Patent number: 7794839Abstract: 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: GrantFiled: March 17, 2009Date of Patent: September 14, 2010Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Patent number: 7700153Abstract: 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: GrantFiled: September 25, 2008Date of Patent: April 20, 2010Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehmsperger
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Publication number: 20090176099Abstract: 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: ApplicationFiled: March 17, 2009Publication date: July 9, 2009Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Patent number: 7524561Abstract: 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: GrantFiled: May 28, 2008Date of Patent: April 28, 2009Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Publication number: 20090057619Abstract: 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: ApplicationFiled: August 26, 2008Publication date: March 5, 2009Inventors: Stephen Allen Goldman, John David Carter
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Publication number: 20090023838Abstract: 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: ApplicationFiled: September 25, 2008Publication date: January 22, 2009Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehmsperger
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Patent number: 7445812Abstract: 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: GrantFiled: August 5, 2004Date of Patent: November 4, 2008Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehrnsperger
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Patent number: 7427437Abstract: 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: GrantFiled: August 5, 2004Date of Patent: September 23, 2008Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Michael Divo, Edward Joseph Urankar
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Publication number: 20080226898Abstract: 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: ApplicationFiled: May 28, 2008Publication date: September 18, 2008Inventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Patent number: 7402339Abstract: 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: GrantFiled: August 7, 2007Date of Patent: July 22, 2008Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Patent number: 7402554Abstract: 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: GrantFiled: March 22, 2006Date of Patent: July 22, 2008Assignee: The Procter & Gamble CompanyInventors: Stephen Allen Goldman, Dalen Alan Gregory, Bernard Frans DeRyck
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Patent number: 7396585Abstract: 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: GrantFiled: August 5, 2004Date of Patent: July 8, 2008Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehrnsperger
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Patent number: 7316323Abstract: 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: GrantFiled: May 6, 2004Date of Patent: January 8, 2008Assignee: The Procter & Gamble CompanyInventors: Dimitris Ioannis Collias, Stephen Allen Goldman, Michael Donovan Mitchell
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Patent number: 7270881Abstract: 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: GrantFiled: August 5, 2004Date of Patent: September 18, 2007Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Edward Joseph Urankar
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Patent number: 6921574Abstract: 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: GrantFiled: March 25, 2003Date of Patent: July 26, 2005Assignee: The Procter & Gamble CompanyInventors: Fabio Cinelli, Peter Coles, Stephen Allen Goldman, Mario Romano
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Patent number: 6764476Abstract: 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: GrantFiled: December 20, 2000Date of Patent: July 20, 2004Assignee: The Procter & Gamble CompanyInventors: Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Mattias Schmidt
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Publication number: 20040115251Abstract: 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: ApplicationFiled: September 30, 2003Publication date: June 17, 2004Applicant: The Procter & Gamble CompanyInventors: Stephen Allen Goldman, Wolfgang Edgar Huhn