[특허]Method of making absorbent foam composites

[미국특허] Method of making absorbent foam composites 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-037/15 B32B-038/04 A61F-013/534 B32B-003/26 A61F-013/15 B32B-005/18 B32B-005/24 B32B-027/12 B32B-003/12 B32B-037/26 B32B-038/00 A61F-013/53
출원번호	US-0854371 (2013-04-01)
등록번호	US-9744755 (2017-08-29)
발명자 / 주소	Thompson, Jr., Delton R. Stagg, Timothy V. LaLiberte, Thomas R. Wood, Leigh E.
출원인 / 주소	3M INNOVATIVE PROPERTIES COMPANY
대리인 / 주소	Bern, Steven
인용정보	피인용 횟수 : 0 인용 특허 : 29

초록 ▼

A method of making absorbent foam composites and absorbent foam composites produced therefrom. The method comprises casting an absorbent foam layer having a first side and a second side opposite the first side onto a barrier layer having a first side and second side opposite the first side, where the second side of the absorbent foam layer is in contact with the first side of the barrier layer; joining a second absorbent layer to the second side of the barrier layer before, during, or after the casting step; and breaching the barrier layer after the casting step so that the foam layer and second absorbent layer are in fluid communication. The absorbent foam composites can be used in a variety of applications, including personal hygiene articles, medical bandages, pet pads and agricultural pads.

대표청구항 ▼

1. A method of making an absorbent foam composite comprising: casting an hydrophilic open-celled absorbent foam layer having a first side and a second side opposite the first side onto a barrier layer having a first side and a second side opposite the first side, where the second side of the absorbent foam layer is in contact with the first side of the barrier layer;joining a second absorbent layer to the second side of the barrier layer before, during, or after the casting step; andbreaching the barrier layer after the casting step so that the absorbent foam layer and second absorbent layer are in fluid communication. 2. The method of claim 1, wherein the absorbent foam layer comprises polyurethane foam. 3. The method of claim 1, wherein the second absorbent layer comprises superabsorbent polymer sandwiched between two layers of cellulosic fiber tissue. 4. The method of claim 1, wherein the second absorbent layer comprises a preformed fibrous web with superabsorbent polymer dispersed within. 5. The method of claim 1, wherein the barrier layer comprises at least one of films, coated nonwoven materials, and coated papers. 6. The method of claim 1, wherein the barrier layer comprises polyester film. 7. The method of claim 1, wherein the barrier layer is a film comprising at least one of polypropylene, polyethylene, and co-polymers thereof. 8. The method of claim 1, wherein the barrier layer is breached by pin perforation. 9. The method of claim 1, wherein the barrier layer is breached by skip slitting. 10. A method of making an absorbent foam composite comprising: casting an hydrophilic open-celled absorbent foam layer having a first side and a second side opposite the first side onto a barrier layer having a first side and a second side opposite the first side, where the second side of the absorbent foam layer is in contact with the first side of the barrier layer;joining a second absorbent layer to the second side of the barrier layer before, during, or after the casting step;adding a second barrier layer to the first side of the absorbent foam layer during the casting step, where the second barrier layer has a first side and a second side opposite the first side, and the second side of the second barrier layer is in contact with the first side of the absorbent foam layer;joining a third absorbent layer to the first side of the second barrier layer before, during or after the casting step;breaching the two barrier layers so that the absorbent foam layer is in fluid contact with each of the second and third absorbent layers; andskiving the foam layer to create two absorbent foam composites. 11. The method of claim 10, wherein the absorbent foam layer comprises polyurethane foam.

이 특허에 인용된 특허 (29)

Dyer John Collins ; Lloyd Susan Nicole, Absorbent articles containing foams useful for absorbing blood and blood-based liquids.
상세보기
Trombetta Liberatore A.,ITX ; Darby Dennis A.,ITX, Absorbent composite web.
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Korpman Ralf (Somerset City NJ), Absorbent foam products.
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James R. Gross ; Samuel C. Baer ; Steve Leptick CA; John P. Erspamer, Absorbent structures with integral layer of superabsorbent polymer particles.
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Bries James L. (Cottage Grove MN) Johnston Vickie A. (Lake Elmo MN), Absorbent, non-skinned foam and the method of preparation.
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Brands Jan (Terneuzen MI NLX) Swartzmiller Steven B. (Midland MI) Grnbauer Henri J. M. (Oostburg NLX) van Duin Kees-Jeen (Terneuzen NLX), Barrier films for preventing solvent attack on plastic resins.
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Krautkramer, Patsy A.; Falls, Maureen M.; Makolin, Robert John; Ceman, Glory Framary; Reeves, William; Woltman, Garry Roland, Composite absorbent members.
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Ranganathan, Sridhar; Radwanski, Fred R.; Day, Jenny L.; Krueger, Jeffrey J.; Lefkowitz, Gregory M.; Kellenberger, Stanley R.; Wilhelm, Hoa La, Differentially expanding absorbent structure.
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Baker, Andrew, Fluid handling layers made from foam and absorbent articles containing same.
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Weisman Paul T. (P.O. Box 39175 Cincinnati OH 45247) Goldman Stephen A. (P.O. Box 39175 Cincinnati OH 45247), High-density absorbent structures.
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Gegelys Anthony A. (Somerset NJ), Incontinence insert.
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Gegelys Anthony A. (Somerset NJ), Incontinence pad.
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Goto Fumio (Kurashiki JPX) Ogawa Taro (Kurashiki JPX), Integrally foamed article having threefold-laminated cover material.
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Simpson,Scott S.; Sato,Tadashi, Low density polyurethane foam, method of producing, and articles comprising the same.
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Eichberger Walter (Perchtoldsdorf ATX) Valenta William (Maria Enzersdorf ATX) Stampfer Heinz (Maria Enzersdorf ATX), Method for the continuous production of foam material.
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Ronald Ray McFall ; Gary Dean Lavon ; John Richard Noel ; John Lee Hammons ; Donald Carroll Roe, Method of making a slitted or particulate absorbent material and structures formed thereby.
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Price, Bruce E.; Kilhenny, Brett W., Method of printing including mounting plate on cylinder using foam cushion tape.
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Tadokoro, Shigeru; Kanagawa, Yoshinori; Niwa, Toshio; Tamaki, Toshifumi, Method of producing polyurethane foam sheet and laminated sheet using same.
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Wang Tsu-Huai (Hockessin DE) Key Edgar T. (West Chester PA), Plastic laminate, article and method of making same.
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Sessions Robert W. ; Carr Roy D. ; Morin Peter E., Polymer-based porous foam.
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Peterson Gregory P., Process and apparatus for fabrication of flexible foam.
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Hulsebusch, William H.; Hinkhouse, Lysle R., Process for developing porosity in air impervious film and articles produced by the process.
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Sessions Robert W. (Hinsdale IL) Carr Roy D. (Burr Ridge IL) Morin Peter E. (Orland Park IL), Process for preparing a sheet of polymer-based foam.
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Kafka Bernard (Rantigny FRX) Meunier Jean-Paul (Clermont FRX) Have Serge (Clermont FRX), Process for the continuous production of composite foam panels and resultant product.
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Roth Jacques (Strasbourg FRX) Alain Manigold (Romanswiller FRX) Schmitt Daniel (Berstett FRX), Process for the production of padding of polyurethane foam cast in situ in a textile covering.
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Ragsdale Mark E. ; Belue Sandy G., Reduction of color degradation of triphenylmethane polymeric colorants within polyurethane foams.
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Gustafson,Ingrid; Berland,Carolyn, Sensoring absorbing article.
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LaVon Gary D. (Harrison OH) Young Gerald A. (Cincinnati OH) Taylor Gregory W. (West Chester OH) Roe Donald C. (West Chester OH) Andes William S. (Springfield OH), Slitted absorbent members for aqueous body fluids formed of expandable absorbent materials.
상세보기
Beihoffer Thomas W. ; Tomlin Anthony S., Water-absorbent article and method.
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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

내보내기 구분	파일저장 인쇄 메일전송
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

[미국특허] Method of making absorbent foam composites 원문보기

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[미국특허] Method of making absorbent foam composites 원문보기

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연구과제 타임라인

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