[특허]Fracture resistant superabsorbent polymers

Fracture resistant superabsorbent polymers 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-013/15 A61L-015/42 A61L-015/60
출원번호	US-0216686 (1998-12-18)
발명자 / 주소	James R. Gross
출원인 / 주소	BKI Holding Corporation
대리인 / 주소	Darby & Darby
인용정보	피인용 횟수 : 13 인용 특허 : 23

초록 ▼

The present invention is directed to a hydrogel-forming polymeric material including a first compound which is a superabsorbent polymer and a second compound present in the first as a dispersed phase including an elastomeric material effective to increase the fracture resistance of the superabsorbent. The material is prepared from a first compound including carboxylic-functional polyelectrolytes in combination with a crosslinkers reactive with carboxyl or carboxylate groups and an effective amount of a second compound including an aqueous dispersion of a rubbery material. In one preferred embodiment, the fracture resistant polymer is prepared from monomer/crosslinker solution mixed with latex.

대표청구항 ▼

1. A hydrogel-forming polymeric material comprising a first compound which is a superabsorbent polymer and a second compound present in the first as a dispersed phase comprising an elastomeric material effective to increase the fracture resistance of the superabsorbent prepared from:a. a first compound comprising carboxylic-functional polyelectrolytes in combination with a crosslinker reactive with carboxyl or carboxylate groups; and b. an effective amount of a second compound comprising an aqueous dispersion of a rubbery material, wherein the hydrogel-forming polymeric material exhibits a gel capacity of at least about 20 grams 0.9% saline per gram of material and a Friability Index of at least about 25% greater than the Friability Index exhibited by a hydrogel-forming polymeric material that is prepared without the second compound.

이 특허에 인용된 특허 (23)

Nakanishi Minoru (Utsunomiya JPX) Sakurai Akira (Utsunomiya JPX) Kobayashi Takatoshi (Wakayama JPX), Absorbent article.
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Burkholder ; Jr. ; Nelson D., Absorbent articles and methods for their preparation.
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Gross James R. (Lake Jackson TX), Absorbent articles and methods for their preparation from crosslinkable solutions of synthetic carboxylic polyelectrolyt.
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Poccia John F. (Union Beach NJ) Ovans Kevin J. (East Windsor NJ) Pieniak Heinz (Des Moines WA), Absorbent mixture.
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Kellenberger Stanley R. (Appleton WI), Absorbent products containing hydrogels with ability to swell against pressure.
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Makoui Kambiz B. (333 Winnebago Ave. Menasha WI 54952), Absorbent structure containing superabsorbent particles and having a latex binder coating on at least one surface of the.
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Bernardin Leo J. (Appleton WI), Absorbent structure designed for absorbing body fluids.
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Bernardin Leo J. (Appleton WI), Absorbent structure designed for absorbing body fluids.
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Gross James R. ; Baer Samuel C. ; Leptick Steve,CAX ; Erspamer John P., Absorbent structures coated with foamed superabsorbent polymer.
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Drelich ; Arthur H., Bonded nonwoven fabrics.
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Richards Mark R. (Middletown OH) Noel John R. (Cincinnati OH) Mackey Larry N. (Fairfield OH) Lee Yann-Per (Fairfield OH) Haney Anna R. (Cincinnati OH) Hammons John L. (Hamilton OH) Lloyd Susan N. W. , Catamenial absorbent structures having thermally bonded layers for improved handling of menstrual fluids, and their use.
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Allen ; Jr. Roe C. (Roswell GA) Burnes Andrew S. (Lawrenceville GA), Compressively resistant and resilient fibrous nonwoven web.
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Dabi Shmuel (Highland Park NJ), Crosslinked carboxyl polyelectrolytes and method of making same.
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Anjur Sriram Padmanabhan (Appleton WI) Shah Ketan Narendra (Appleton WI) Wisneski Anthony John (Kimberly WI), Elastomeric absorbent structure.
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Stack Dennis P. (Santa Ana CA) Steinwand Paul J. (Placentia CA), Fast curing binder for cellulose.
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Vukos John P. (Neenah WI) Matelski Billie D. (Neenah WI), Feminine hygiene article and method.
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Makoui Kambiz B. (Menasha WI), Method of making an absorbant structure.
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Seal Michael J. (Dunblane GB7), Nonwoven materials.
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Iskra Michael J. (Flemington NJ), Perf-embossed absorbent structure.
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Scranton Alec B. ; Mathur Arvind M. ; Klier John, Polymers comprising reversible hydrophobic functionalities.
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Knight David (196 Brushy Hill Rd. Newtown CT 06470-0124), Stretchable tear resistant porous elastomeric film elements and processes.
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Chang Ching-Jen (Chalfont PA) DeWitt Walter (Southampton PA), Superabsorbent polymeric compositions and process for producing the same.
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Kaczmarzyk Leonard M. (Neenah WI) Hlaban James J. (Neenah WI) McKelvey Patricia J. (Appleton WI), Wrapper structure for tampons containing superabsorbent material.
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이 특허를 인용한 특허 (13)

Schmidt,Mattias; Meyer,Axel; Fossum,Renae Dianna; Ehrnsperger,Bruno Johannes; Goldman,Stephen Allen; Divo,Michael; Urankar,Edward Joseph, Absorbent article comprising coated water-swellable polymer.
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Schmidt, Mattias; Meyer, Axel; Ehrnsperger, Bruno Johannes; Goldman, Stephen Allen; Urankar, Edward Joseph, Coated water-swellable material.
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Schmidt,Mattias; Meyer,Axel; Ehrnsperger,Bruno Johannes; Goldman,Stephen Allen; Urankar,Edward Joseph, Coated water-swellable material.
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Schmidt,Mattias; Meyer,Axel; Ehrnsperger,Bruno Johannes; Goldman,Stephen Allen; Urankar,Edward Joseph, Coated water-swellable material comprising hydrogel-forming polymeric core and polymeric coating agent.
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Donoho, Christopher D., Disposable diaper with pouches.
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Dutkiewicz, Jacek K.; Skirius, Stephen A.; Fields, Sonja McNeil; Rushing, Lynn Hung; Smith, David Jay; Kalmon, Michael; Moose, Ronald Timothy; Fryczkowski, Ryszard; Fryczkowska, Beata; Rom, Monika, Fibers of variable wettability and materials containing the fibers.
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Hurley, Jeffrey Scott; Boehmer, Brian E.; Campbell, Alan Jeffrey; Moore, Jerry Michael; Vercauteren, Douglas William; Fielder Horton, Heather; Burgess, Barry George, High strength and high elongation wipes.
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Schewe,Sara J.; Lancaster,Mark S.; Newlin,Seth M.; Wisneski,Anthony J.; Hunter,David P.; Nhan,Davis Dang H., Method of making absorbent articles having shaped absorbent cores on a substrate.
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Mulye, Nirmal, Pharmaceutical composition containing water soluble drug.
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Zhang, Xiaomin; Jackson, David Martin; Jacobsen, Lisa Marie; Qin, Jian; Soerens, Dave Allen, Stretchable absorbent composite with low superaborbent shake-out.
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Zhang, Xiaomin; Qin, Jian; Jacobsen, Lisa Marie; Jackson, David Martin, Stretchable absorbent composites having high permeability.
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Kalayci, Veli E.; Doyle, James; Jones, Derek O.; Babcock, Brian; Hebert, Michael J.; Johnson, Philip E.; Mehta, Ketan C., Super absorbent containing web that can act as a filter, absorbent, reactive layer or fuel fuse.
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Loeker, Frank; Bremus, Heinz; Gerlach, Rüdiger; Smith, Scott J., Water-absorbing polymer structures produced using polymer dispersions.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Fracture resistant superabsorbent polymers 원문보기