[특허]Superabsorbent materials comprising peroxide

[미국특허] Superabsorbent materials comprising peroxide 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61K-009/00 C08F-008/00 A61L-015/60 A61L-015/46 A01N-037/02 A01N-059/00 A61K-033/40 A61K-047/48 A61L-015/24 A61L-015/44 C08L-033/08 C08L-033/10
출원번호	US-0541764 (2014-11-14)
등록번호	US-9873751 (2018-01-23)
발명자 / 주소	Toreki, William Leander, Susan Olderman, Gerald M.
출원인 / 주소	Quick-Med Technologies, Inc.
대리인 / 주소	Elman, Gerry J.
인용정보	피인용 횟수 : 0 인용 특허 : 38

초록 ▼

This invention pertains to a polymeric composition and an antimicrobial composition, each comprising a superabsorbent polymer (SAP), such as used in diapers and sanitary napkins, and peroxide. The superabsorbent material can be made by the process of treating a preformed SAP, such as a crosslinked polyacrylate salt, with a treatment solution comprising hydrogen peroxide dissolved in water, followed by drying. The resulting superabsorbent material has strong antimicrobial activity. Optionally, the treatment solution may also contain a metal salt, including those of zinc, zirconium, and magnesium.

대표청구항 ▼

1. A method of making an antimicrobial superabsorbent polymer in the form of a dried powder or granular material comprising the steps: (a) swelling to uniformly wet a cross-linked fully- or partially-neutralized salt of an acrylic acid-based superabsorbent polymer with an aqueous treatment solution comprising 0.005 grams to 0.2 grams of hydrogen peroxide per gram of the acrylic acid-based superabsorbent polymer, and followed by(b) thoroughly drying the swelled acrylic acid-based superabsorbent polymer to form the antimicrobial superabsorbent polymer, wherein an antimicrobial superabsorbent polymer consisting of an acrylic acid-based superabsorbent polymer and hydrogen peroxide is produced, whereby peroxide is sequestered or bound in a non-volatile manner within or on the surface of the dried antimicrobial superabsorbent polymer, wherein said antimicrobial superabsorbent polymer provides sustained release of hydrogen peroxide. 2. The method of claim 1, wherein said aqueous treatment solution comprises 0.02 grams to 0.15 grams of hydrogen peroxide per gram of acrylic acid-based superabsorbent polymer. 3. The method of claim 1, wherein said cross-linked fully- or partially-neutralized salt of an acrylic acid-based polymer is a cross-linked hydrophilic sodium salt form of a partially neutralized acrylic acid polymer. 4. The method of claim 1, further comprising an assay step wherein a ratio of polymer to liquid of about 0.2 grams of the antimicrobial superabsorbent polymer to approximately 1,000,000 viable bacteria in about 11 milliliters of an aqueous liquid produces at least a 3-log reduction of viable bacteria in said aqueous liquid.

이 특허에 인용된 특허 (38) 인용/피인용 타임라인 분석

Burkholder ; Jr. Nelson D. (Hong Kong HKX), Absorbent articles and methods for their preparation.
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Gross James R. (Lake Jackson TX), Absorbent articles and methods for their preparation.
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Goldman Stephen A. (Wyoming OH) Haynes Nancy A. (Okeana OH) Mansfield Todd L. (Cincinnati OH) Plischke Manfred (Steinbach DEX) Retzsch Herbert L. (Cincinnati OH) Walker Trevor (Cincinnati OH) Young G, Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absor.
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Goldman Stephen Allen (Wyoming OH) Haynes Nancy Ann (Okeana OH) Mansfield Todd Leon (Cincinnati OH) Plischke Manfred (Steinbach DEX) Retzsch Herbert Louis (Cincinnati OH) Walker Trevor (Cincinnati OH, Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absor.
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Mesek Frederick K. (Tinley Park IL) Butterworth George A. M. (Western Springs IL) Cepuritis Talivaldis (Kenilworth IL), Absorbent open network structure.
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Korpman Ralf (Bridgewater NJ), Absorbent products, processes and compositions.
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Gross James Richard (Lake Jackson TX), Alkali metal carboxylic polyelectrolyte solutions with N-methylol crosslinker.
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Mario, Maud; Desenne, Patricia; Millequant, Jean-Marie, Anhydrous composition comprising at least one oxidation dye, at least one complex of hydrogen peroxide, and a specific polymer, and a coloring process using the same.
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David W. Hobson ; David P. Jones ; Pilar P. Duque, Anhydrous, hydrophilic absorbent wound dressing (tube) with antimicrobials or other pharmaceutically active agents.
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Danna Gary F. (New Orleans LA) Vigo Tyrone L. (Knoxville TN) Welch Clark M. (Metairie LA), Antibacterial textile finishes utilizing zinc acetate and hydrogen peroxide.
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Danna Gary F. (New Orleans LA) Vigo Tyrone L. (Knoxville TN) Welch Clark M. (Metairie LA), Antibacterial textile finishes utilizing zinc acetate and hydrogen peroxide.
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Blank Lynne M. B. (Brighton NY) Boyce Thomas D. (Midland MI) White William C. (Midland MI), Antimicrobial superabsorbent articles.
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Blank Lynne M. B. (Brighton NY) Boyce Thomas D. (Midland MI) White William C. (Midland MI), Antimicrobial superabsorbent compositions and method.
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Blank Lynne M. B. (Brighton NY) Boyce Thomas D. (Midland MI), Antimicrobial superabsorbent compositions and methods.
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Blank Lynne M. B. (Brighton NY) Boyce Thomas D. (Midland MI) White William C. (Midland MI), Antimicrobial superabsorbent compositions and methods.
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Blank, Lynne M. B.; Boyce, Thomas D.; White, William C., Antimicrobial superabsorbent compositions and methods.
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Blank Lynne M. B. (Brighton NY) Boyce Thomas D. (Midland MI) White William C. (Midland MI), Antimicrobial superabsorbent sanitary napkin.
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Michael J. Borja, Denture adhesive compositions.
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Jordan William E. (Cincinnati OH) Ryan Leslie D. (Millville OH), Disposable absorbent articles for incontinent individuals.
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Scott Laurie J. (Midland MI) Erickson Robert E. (Midland MI) Wallace Theodore C. (Midland MI), Foamed polymeric materials.
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Darkwa Adu G. (Chicago IL) Villanueva ; III Apolonio (Northbrook IL), Hair relaxer and post-relaxer hair brightener system.
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Motono Masahiro (Kurume JPX), Hair-dyeing composition comprising tannins and water soluble salts.
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Brandt Kerryn A. (Cincinnati OH) Goldman Stephen A. (Cincinnati OH) Inglin Thomas A. (Cincinnati OH), Hydrogel-forming polymer compositions for use in absorbent structures.
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Mitchell,Michael A., Method of manufacturing superabsorbent polymers.
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Corey Garland G. (Milltown NJ) Bender Robert W. (Jersey City NJ), Nonwoven wipes impregnated with an aqueous solution of a zinc acetate peroxide and a surfactant.
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George Paul J. (Richfield OH), Photopolymerized hydrophilic interpolymers of unsaturated carboxylic acid and esters.
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Ward James A. (Goshen NY), Polyelectrolyte hydrogels and methods of their preparation.
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Vigo Tyrone L. (New Orleans LA) Danna Gary F. (New Orleans LA), Reaction products of magnesium acetate and hydrogen peroxide for imparting antibacterial activity to fibrous substrates.
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Rebre Shu R. (Vincennes FRX) Collette Christian (Paris FRX) Denie Sandrine (Paris FRX), Superabsorbent acrylic powders having low residual monomer content.
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Rebre Shu R. (Vincennes FRX) Collette Christian (Paris FRX) Denie Sandrine (Paris FRX), Superabsorbent acrylic powders having low residual monomer content.
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Smith ; Theodore, Water absorbing and urine stable step-wise grafted starch-polyacrylonitrile copolymers.
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Masuda ; Fusayoshi ; Nishida ; Kazuo ; Nakamura ; Akira, Water absorbing starch resins.
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Mueller Karl F. (New York NY) Good William R. (Yorktown Heights NY), Water-insoluble hydrophilic copolymers.
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[미국특허] Superabsorbent materials comprising peroxide 원문보기