Absorbent products containing hydrogels with ability to swell against pressure

An absorbent composite of the type comprising a porous matrix of fibers and a superabsorbent material dispersed among the interfiber spaces (pores) wherein the superabsorbent material exhibits the ability to absorb greater than about 24 milliliters of a saline solution per gram of superabsorbent mat...

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Bibliographic Details
Main Author KELLENBERGER, STANLEY ROY
Format Patent
LanguageEnglish
French
German
Published 02.11.1989
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PROSTHESES
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:An absorbent composite of the type comprising a porous matrix of fibers and a superabsorbent material dispersed among the interfiber spaces (pores) wherein the superabsorbent material exhibits the ability to absorb greater than about 24 milliliters of a saline solution per gram of superabsorbent material under an applied restraining force of at least about 21,000 dynes/square centimeter provided that, when in the form of discrete particles, at least about 50% of said superabsorbent material has a size greater than the median pore size of the matrix when wet.
Bibliography:Application Number: EP19890107034