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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0743950 (1991-08-12) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 457 인용 특허 : 0 |
Disclosed are absorbent articles, such as diapers, for the management of incontinence. Such articles utilize in their absorbent cores a fluid acquisition/distribution component and a fluid storage/redistribution component maintained in fluid communication with the acquisition/distribution component.
Disclosed are absorbent articles, such as diapers, for the management of incontinence. Such articles utilize in their absorbent cores a fluid acquisition/distribution component and a fluid storage/redistribution component maintained in fluid communication with the acquisition/distribution component. The fluid acquisition/distribution component can be any porous hydrophilic, e.g., fibrous or foam-based, material which will provide an initial Fluid Acquisition Rate of at least 2 mL of synthetic urine per second and will also preferably provide a 30-minute Vertical Wicking Height of at least 2 cm. The fluid storage/redistribution component comprises a hydrophilic, flexible, open-celled polymeric foam having a free absorbent capacity of at least about 12 mL of synthetic urine per gram of dry foam and an absorbent capacity under a 5.1 kPa confining pressure which is at least 5% of this free capacity. Preferred fluid acquisition/distribution component materials comprise chemically stiffened, twisted, curled cellulosic fibers. Preferred fluid storage/redistribution component materials comprise absorbent foams prepared by polymerizing a high internal phase emulsion (HIPE).
An absorbent article useful for absorbing aqueous body fluids discharged by an incontinent individual, said absorbent article comprising A) a relatively liquid-impervious backing sheet; B) a relatively liquid-pervious topsheet; and C) an absorbent core positioned between said backing sheet and said
An absorbent article useful for absorbing aqueous body fluids discharged by an incontinent individual, said absorbent article comprising A) a relatively liquid-impervious backing sheet; B) a relatively liquid-pervious topsheet; and C) an absorbent core positioned between said backing sheet and said topsheet, said absorbent core comprising i) a fluid acquisition/distribution component positioned to receive discharged body fluids passing through the article topsheet, said fluid acquisition/distribution component comprising a porous hydrophilic structure which exhibits an initial Fluid Acquisition Rate of at least about 2 mL of synthetic urine per second; and ii) a fluid storage/redistribution component maintained in fluid communication with said fluid acquisition/distribution component, said storage/redistribution component comprising a polymeric foam material in the form of a hydrophilic, flexible, open-celled structure which has a free absorbent capacity at 37°C. of at at least about 12 mL of synthetic urine per gram of dry foam material and which also has an absorbent capacity for said synthetic urine under a confining pressure of 5.1 kPa maintained for 15 minutes at 37°C. which is at least about 5% of its free absorbent capacity.
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