Absorbent hygiene product
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United States of America Patent
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N/A
Issued Date -
Jul 21, 2005
app pub date -
Mar 17, 2005
filing date -
Dec 20, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Absorbent hygiene products comprising a core of an absorbent material and a top sheet through which fluid to be absorbed passes for absorption by the absorbent material are disclosed. The top sheet is porous and comprises a sheet having surfaces of a hydrophobic polymeric material modified by a graft copolymerization reaction between those surfaces and a vinyl monomer having a group capable of exhibiting hydrophilic properties. The graft polymerization reaction comprising exposure of the sheet to ultraviolet radiation while impregnated with a solution of the vinyl monomer. The grafted vinyl monomer comprises a substantially uniform coating of the sheet surface and having a mean thickness not more than about 3.0 .mu.m. Methods for producing this absorbent hygiene product are also disclosed.
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Family
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