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Absorbent articles containing foams useful for absorbing blood and blood-based liquids    
United States Patent5899893   
Link to this pagehttp://www.wikipatents.com/5899893.html
Inventor(s)Dyer; John Collins (Cincinnati, OH); Lloyd; Susan Nicole (Middletown, OH)
AbstractFoams capable of absorbing blood and blood-based fluids, especially menses. These absorbent foams have high capillary absorption pressures required of absorbents used in catamenial products, yet have sufficient openness to allow free movement of the insoluble components in blood-based fluids such as menses. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 20:1 to about 125:1. These foams are particularly useful as absorbent members for catamenial pads.
   














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Patent Text Patent PDF Print Page Summary File History
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Inventor     Dyer; John Collins (Cincinnati, OH); Lloyd; Susan Nicole (Middletown, OH)
Owner/Assignee     The Procter & Gamble Company (Cincinnati, OH)
Patent assignment
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Publication Date     May 4, 1999
Application Number     08/955,555
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     October 20, 1997
US Classification    
Int'l Classification    
Examiner     Foelak; Morton
Assistant Examiner    
Attorney/Law Firm     Roof; Carl J. Rasser; Jacobus C. Linman; E. Kelly
Address
Parent Case     This is a division of application Ser. No. 08/688,496, filed Jul. 30, 1996, which is a division of application Ser. No. 08/542,497, filed on Oct. 13, 1995, which is a continuation-in-part of application Ser. No. 08/370,697, filed on Jan. 10, 1995 now abandoned.
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Patent Tags     absorbent articles containing foams useful absorbing blood and blood-based liquids
   
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