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).
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Patent number: 10307732Abstract: 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: GrantFiled: April 7, 2014Date of Patent: June 4, 2019Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Michael M. Azad, Mark Joy
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Patent number: 9375507Abstract: 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: GrantFiled: January 17, 2014Date of Patent: June 28, 2016Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Mark Joy
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Patent number: 9302248Abstract: 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: GrantFiled: April 10, 2013Date of Patent: April 5, 2016Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith
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Publication number: 20160060418Abstract: 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: ApplicationFiled: April 7, 2014Publication date: March 3, 2016Inventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Michael M. Azad, Mark Joy
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Publication number: 20150283284Abstract: 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: ApplicationFiled: April 7, 2014Publication date: October 8, 2015Applicant: EVONIK CORPORATIONInventors: Michael Azad, Rani M. Wieand, Regina Gilmer, Geoff Blake, Ronald W. Wiedbusch, David L. Bergman, JR., Andrew J. Lang
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Publication number: 20140306156Abstract: 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: ApplicationFiled: January 17, 2014Publication date: October 16, 2014Applicant: EVONIK CORPORATIONInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
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Publication number: 20140309606Abstract: 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: ApplicationFiled: April 10, 2013Publication date: October 16, 2014Inventors: Sandra Ann Richlen, Aster Ellen Kammrath, Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
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Publication number: 20140306155Abstract: 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: ApplicationFiled: April 10, 2013Publication date: October 16, 2014Applicant: EVONIK CORPORATIONInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, JR., Bernfried Messner, Scott J. Smith
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Publication number: 20140309607Abstract: 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: ApplicationFiled: January 17, 2014Publication date: October 16, 2014Applicant: 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
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Patent number: 8822582Abstract: 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: GrantFiled: July 30, 2013Date of Patent: September 2, 2014Assignee: Evonik CorporationInventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
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Publication number: 20140155259Abstract: 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: ApplicationFiled: January 23, 2014Publication date: June 5, 2014Applicant: Evonik Stockhausen, LLCInventors: Gonglu Tian, David L. Bergman, JR., Yaru Shi
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Patent number: 8647317Abstract: 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: GrantFiled: February 18, 2013Date of Patent: February 11, 2014Assignee: Evonik Stockhausen, LLCInventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
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Publication number: 20140031498Abstract: 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: ApplicationFiled: July 30, 2013Publication date: January 30, 2014Applicant: Evonik Stockhausen, LLCInventors: Scott J. Smith, Stan McIntosh, David L. Bergman, JR.
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Patent number: 8519041Abstract: 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: GrantFiled: June 15, 2012Date of Patent: August 27, 2013Assignee: Evonik Stockhausen, LLCInventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
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Patent number: 8403904Abstract: 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: GrantFiled: October 4, 2012Date of Patent: March 26, 2013Assignee: Evonik Stockhausen, LLCInventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
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Patent number: 8304369Abstract: 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: GrantFiled: May 7, 2010Date of Patent: November 6, 2012Assignee: Evonik Stockhausen, LLCInventors: Gonglu Tian, David L. Bergman, Jr., Yaru Shi
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Publication number: 20120277096Abstract: 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: ApplicationFiled: June 15, 2012Publication date: November 1, 2012Inventors: Scott J. Smith, Stan McIntosh, David L. Bergman, JR.
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Patent number: 8236884Abstract: 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: GrantFiled: March 23, 2007Date of Patent: August 7, 2012Assignee: Evonik Stockhausen, LLCInventors: Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
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Publication number: 20110275513Abstract: 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: ApplicationFiled: May 7, 2010Publication date: November 10, 2011Inventors: Gonglu Tian, David L. Bergman, JR., Yaru Shi
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Patent number: 7935860Abstract: 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: GrantFiled: March 23, 2007Date of Patent: May 3, 2011Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard N. Dodge, II, Tammy J. Nettekoven, Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.