Fusion-bonded product from non-porous material and porous material
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United States of America Patent
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Issued Date -
Apr 28, 2005
app pub date -
Jul 7, 2004
filing date -
Jan 9, 2002
priority date (Note) -
Abandoned
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Abstract
A fusion-bonded product prepared by fusion-bonding a part of a laminate containing a non-porous material and a porous material, characterized in that the cross section of the fusion-bonded portion comprises at least three layers comprising a layer (A) consisting of the non-porous article alone, a composite material layer (B) containing the non-porous material and the porous material being present mixedly, and a layer (c) consisting of the porous material alone, wherein the boundary between the composite material layer (B) and the porous material layer (c) has a length (L.sub.BC) in the range of 1.2 mm to 2.5 mm. The fusion-bonded product exhibits excellent resistance to release.
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