초록 ▼

Foams 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

Foams 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.

대표청구항 ▼

[ What is claimed is:] [1.] A catamenial pad especially suitable for absorbing menstrual fluids, said pad comprising:I) a fluid pervious topsheet;II) a backsheet; andIII) an absorbent core positioned between said topsheet and said backsheet and the fluid discharge region of the wearer of the pad, sa

[ What is claimed is:] [1.] A catamenial pad especially suitable for absorbing menstrual fluids, said pad comprising:I) a fluid pervious topsheet;II) a backsheet; andIII) an absorbent core positioned between said topsheet and said backsheet and the fluid discharge region of the wearer of the pad, said absorbent care comprising an absorbent member made from a polymeric foam material which is capable of absorbing blood and blood-based fluids, said polymeric foam material comprising a hydrophilic, flexible, nonionic polymeric foam structure of interconnected open cells, which foam structure has:A) the ability to wick artificial menstrual fluid (AMF) vertically to a height of 5 cm in less than about 60 minutes;B) a capillary specific surface area in the range of from about 0.0080 to about 0.040 m.sup.2 /cc;C) a resistance to compression deflection of from about 5 to about 95% when measured under a confining pressure of 0.74 psi at 31.degree. C. after 15 minutes;D) a free absorbent capacity of from about 20 to about 125 g/g; andE) less than about 2% residual hydratable salt.