[특허]Absorbent structures comprising coated super-absorbent polymer particles

[미국특허] Absorbent structures comprising coated super-absorbent polymer particles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-013/15
출원번호	US-0936859 (2007-11-08)
등록번호	US-8791320 (2014-07-29)
우선권정보	EP-03014926 (2003-06-30)
발명자 / 주소	Ehrnsperger, Bruno Johannes Opper, Heike Schoenborn, Udo Friedel
출원인 / 주소	The Procter & Gamble Company
대리인 / 주소	Whitmer, Laura L.
인용정보	피인용 횟수 : 0 인용 특허 : 31

초록 ▼

This invention is directed to super-absorbent material, which comprises a super absorbent polymer core that is coated with an organic, polar coating agent, and whereby the particulate super-absorbent material has a contact angle and a corresponding cos CAm (as defined herein), whereby the cos CAm is more than 0.3, and whereby, when said coating agent is in the form of particles, said coating agent particles have a (weight) mean particle size of from 0.001 to 1 micron. The material is useful for absorbent structures and absorbent articles (comprising such structures). The coated super-absorbent material is typically present in said absorbent structure at least at a concentration of 50% by weight of the structure, preferably even 80% or even 90%. The invention also provides a process for making the absorbent material.

대표청구항 ▼

1. An absorbent article comprising an absorbent structure, said absorbent structure comprising a particulate super-absorbent material comprising a particulate core of super-absorbent polymers, said particulate core coated with a coating agent comprising an organic coating compound which has one or more polar groups, and wherein the coated particulate super-absorbent material has a contact angle and a corresponding cos CAm, wherein the cos CAm is greater than 0.3 and has a specific surface area of at least 0.25 m2 per gram, further wherein there is a gradient of coated super absorbent material within the total superabsorbent material of the absorbent structure, and wherein the absorbent structure comprises less than 10% by weight of absorbent fibers. 2. The absorbent article of claim 1 wherein said absorbent structure further comprises cellulose fibers. 3. The absorbent article of claim 1 wherein said absorbent article is selected from the group consisting of a sanitary napkin, a panty liner, a diaper, a training pant, and an adult incontinence article. 4. The absorbent article of claim 1 wherein the absorbent structure comprises less than 5% by weight of absorbent fibrous material. 5. The absorbent article of claim 1 wherein the absorbent structure comprises more than 50% by weight of super absorbent. 6. The absorbent article of claim 1 wherein the absorbent structure comprises a gradient of uncoated superabsorbent material.

이 특허에 인용된 특허 (31) 인용/피인용 타임라인 분석

Tsubakimoto Tsuneo (Toyonaka JPX) Shimomura Tadao (Toyonaka JPX) Irie Yoshio (Nishinomiya JPX), Absorbent article.
상세보기
Weisman Paul T. (Fairfield OH) Houghton Dawn I. (Fairfield OH) Gellert Dale A. (Aurora IN), Absorbent articles with dual-layered cores.
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Fell, David Arthur; Lan, Megan; Georger, William Anthony; Arehart, Kelly Davis; Do, Bao Trong; Martin, Stephanie Michelle, Absorbent articles with improved odor control.
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Richman Edward (Ambler PA) Thorn Mark A. (North Brunswick NJ), Absorbent composition of matter, process for preparing same and article prepared therefrom.
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Goldman Stephen A. (Cincinnati OH) Retzsch Herbert L. (Cincinnati OH) Mansfield Todd L. (Cincinnati OH), Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absor.
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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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Staples Thomas L. ; Henton David E. ; Rose Gene D. ; Fialkowski Michael A., Absorbent polymers having a reduced caking tendency.
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Roe Donald C. (Cincinnati OH), Absorbent structures containing specific particle size distributions of superabsorbent hydrogel-forming materials mixed.
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Dahmen Kurt (Mnchengladbach-Rheydt DEX) Mertens Richard (Krefeld DEX), Aqueous-liquid and blood-absorbing powdery reticulated polymers, process for producing the same and their use as absorbe.
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Alemany Miguel (Cincinnati OH) Berg Charles J. (Cincinnati OH), High density absorbent members having lower density and lower basis weight acquisition zones.
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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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Brandt Kerryn A. (Cincinnati OH) Goldman Stephen A. (Wyoming OH) Inglin Thomas A. (West Chester OH), Hydrogel-forming polymer compositions for use in absorbent structures.
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Baggett Don W. (Torrance CA) Herther Jay G. (Nashua NH) Bassham Deborah E. (San Diego CA), Method and apparatus for detecting an out of beam condition in a monopulse radar receiver.
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Tsubakimoto Tsuneo (Osaka JPX) Shimomura Tadao (Osaka JPX) Irie Yoshio (Hyogo JPX), Method for continuous production of cross-linked polymer.
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Tai Eva F. (Midland MI), Method for making aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated w.
상세보기
Makita Muneharu (Takatsuki JPX) Tanioku Shozo (Nara JPX), Method for producing improved water-absorbent resins.
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Kimura Kazumasa (Ikoma JPX) Hatsuda Takumi (Himeji JPX) Nagasuna Kinya (Himeji JPX), Method for treating the surface of an absorbent resin.
상세보기
Kellenberger Stanley R. (Appleton WI) Zenker David L. (Neenah WI), Non-layered absorbent insert having Z-directional superabsorbent concentration gradient.
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Hansen Michael R. (Seattle WA) Young ; Sr. Richard H. (Renton WA), Particle binders.
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Donachy Julie (Mobile AL) Sikes Steven (Mobile AL), Polyamino acid superabsorbents.
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Aoki ; Shuzo ; Yamasaki ; Harumasa, Process for preparation of spontaneously-crosslinked alkali metal acrylate polymers.
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Sun Fang ; Jones Heather S. ; Kaiser Thomas A. ; Hsu Whei-Neen ; Molen Ronald L. ; Deaton Peter A. ; Messner Bernfried A., Superabsorbent polymers having anti-caking characteristics.
상세보기
Gartner Herbert (Baden-Baden DEX) Burgert Josef (Achern-Fautenbach DEX), Surface crosslinked and surfactant coated absorbent resin particles and method of preparation.
상세보기
Alexander William (Naperville IL) Anderson Mark (Wheaton IL) Regan Barbara R. (Glenview IL), Surface treated absorbent polymers.
상세보기
Lash Glen R. (Cincinnati OH) Thompson Leonard R. (Fairfield OH), Thin absorbent articles containing gelling agent.
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Westerman Ira John (Strongsville OH), Water absorbent polymers comprising unsaturated carboxylic acid, acrylic ester containing alkyl group 10-30 carbon atoms.
상세보기
Tsubakimoto Tsuneo (Toyonaka JPX) Shimomura Tadao (Toyonaka JPX) Irie Yoshio (Nishinomiya JPX) Masuda Yoshihiko (Suita JPX) Kimura Kazumasa (Osaka JPX) Hatsuda Takumi (Suita JPX), Water absorbing agent.
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Masuda ; Fusayoshi ; Nishida ; Kazuo ; Nakamura ; Akira, Water absorbing starch resins.
상세보기
Harada Nobuyuki,JPX ; Miyake Koji,JPX ; Motono Yoshihiro,JPX ; Tahara Hideyuki,JPX ; Hatsuda Takumi,JPX ; Kanto Teruyuki,JPX ; Yano Akito,JPX ; Dairoku Yorimichi,JPX ; Kimura Kazuki,JPX ; Fujita Yasu, Water-absorbent resin and method for production thereof.
상세보기
Obayashi, Shigeji; Nakamura, Morio; Yamamoto, Takushi; Fujikake, Masato, Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same.
상세보기
Stanley ; Jr. ; deceased Frederick W. ; Lamphere Jack C. ; Wilson Larry R., Wrinkled absorbent particles of high effective surface area having fast absorption rate.
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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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[미국특허] Absorbent structures comprising coated super-absorbent polymer particles 원문보기