Patents by Inventor David L. Bergman

David L. Bergman 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: 10307732
    Abstract: The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: June 4, 2019
    Assignee: Evonik Corporation
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Michael M. Azad, Mark Joy
  • Patent number: 9375507
    Abstract: The present invention relates to a particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 ?m, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 ?m in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 28, 2016
    Assignee: Evonik Corporation
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Mark Joy
  • Patent number: 9302248
    Abstract: The present invention relates to a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2 and a compressibility of from about 1.30 mm2/N to about 4 mm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: April 5, 2016
    Assignee: Evonik Corporation
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith
  • Publication number: 20160060418
    Abstract: The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 3, 2016
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Michael M. Azad, Mark Joy
  • Publication number: 20150283284
    Abstract: The present invention relates to a particulate superabsorbent polymer composition having fast absorption and a method of making the particulate superabsorbent polymer comprising a monomer solution comprising a foaming agent and a mixture of a lipophile surfactant and a polyethoxylated hydrophilic surfactant wherein the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 500 ?m and a vortex time of 30 to 60 seconds. The present invention further includes particulate superabsorbent polymer compositions surface treated with other components. The present invention further includes absorbent cores and articles including the particulate superabsorbent polymer compositions.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 8, 2015
    Applicant: EVONIK CORPORATION
    Inventors: Michael Azad, Rani M. Wieand, Regina Gilmer, Geoff Blake, Ronald W. Wiedbusch, David L. Bergman, JR., Andrew J. Lang
  • Publication number: 20140306156
    Abstract: The present invention relates to a particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 ?m, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 ?m in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification.
    Type: Application
    Filed: January 17, 2014
    Publication date: October 16, 2014
    Applicant: EVONIK CORPORATION
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
  • Publication number: 20140309606
    Abstract: The present invention relates to an absorbent article containing a topsheet; backsheet; an absorbent core disposed between the topsheet and backsheet, the absorbent core comprising a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer composition; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2 and a compressibility of from about 1.30 cm2/N to about 4 cm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Inventors: Sandra Ann Richlen, Aster Ellen Kammrath, Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
  • Publication number: 20140306155
    Abstract: The present invention relates to a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2 and a compressibility of from about 1.30 mm2/N to about 4 mm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Applicant: EVONIK CORPORATION
    Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
  • Publication number: 20140309607
    Abstract: The present invention relates to an absorbent article containing a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 ?m, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2 and a compressibility of from about 1.30 cm2/N to about 4 cm2/N; and the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 ?m in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition.
    Type: Application
    Filed: January 17, 2014
    Publication date: October 16, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Sandra Ann Richlen, Aster Ellen Kammrath, Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
  • Patent number: 8822582
    Abstract: The invention relates to absorptive, crosslinked polymeric composition that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a polymeric coating, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have a high capacity and a high gel bed permeability.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 2, 2014
    Assignee: Evonik Corporation
    Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
  • Publication number: 20140155259
    Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.
    Type: Application
    Filed: January 23, 2014
    Publication date: June 5, 2014
    Applicant: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, David L. Bergman, JR., Yaru Shi
  • Patent number: 8647317
    Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: February 11, 2014
    Assignee: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
  • Publication number: 20140031498
    Abstract: The invention relates to absorptive, crosslinked polymeric composition that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a polymeric coating, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have a high capacity and a high gel bed permeability.
    Type: Application
    Filed: July 30, 2013
    Publication date: January 30, 2014
    Applicant: Evonik Stockhausen, LLC
    Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, JR.
  • Patent number: 8519041
    Abstract: The invention relates to absorptive, crosslinked polymeric composition that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a polymeric coating, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have a high capacity and a high gel bed permeability.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: August 27, 2013
    Assignee: Evonik Stockhausen, LLC
    Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
  • Patent number: 8403904
    Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: March 26, 2013
    Assignee: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
  • Patent number: 8304369
    Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: November 6, 2012
    Assignee: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
  • Publication number: 20120277096
    Abstract: The invention relates to absorptive, crosslinked polymeric composition that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a polymeric coating, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have a high capacity and a high gel bed permeability.
    Type: Application
    Filed: June 15, 2012
    Publication date: November 1, 2012
    Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, JR.
  • Patent number: 8236884
    Abstract: The invention relates to absorptive, crosslinked polymeric composition that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a polymeric coating, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have a high capacity and a high gel bed permeability.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: August 7, 2012
    Assignee: Evonik Stockhausen, LLC
    Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
  • Publication number: 20110275513
    Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 10, 2011
    Inventors: Gonglu Tian, David L. Bergman, JR., Yaru Shi
  • Patent number: 7935860
    Abstract: An absorbent article can have a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. In some aspects, at least one of the topsheet, backsheet, and absorbent core is stretchable. In other aspects, the absorbent core can comprise layers, at least one of which includes substantially the superabsorbent material only and at least one of which includes substantially fluff only. In some aspects, the article includes superabsorbent material having a surface additive that includes a surface crosslinking agent, a water-insoluble inorganic metal compound and a polymeric coating.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: May 3, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard N. Dodge, II, Tammy J. Nettekoven, Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.