Glass-like polysaccharide useful as absorbent for liquids
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United States of America Patent
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Sep 3, 2002
Grant Date -
N/A
app pub date -
May 11, 2000
filing date -
May 11, 1999
priority date (Note) -
Expired
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Abstract
A particulate absorbent, for the absorption of liquids, comprising particles selected from the group consisting of particles of glass-like polysaccharides and of particles of glass-like polysaccharides occluding, In their internal structure, at least one surfactant, said particles: having a size of up to 620 .mu.m; being at least 70% of a glass-like type structure; and being: 30 to 45% of a size comprised between 620 and 420 .mu.m; 35 to 55% of a size comprised between 420 and 210 .mu.m; and 5 to 25% of a size up to 210 .mu.m. These particulate absorbent is non-hygroscopic, hypoallergenic and biodegradable and useful particularly in biodegradable diapers.
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