Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1992-03-26
1992-12-29
Sluby, P. C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
428339, 428480, 428913, 604367, B32B 2700, A61F 1316
Patent
active
051750503
ABSTRACT:
A generally hydrophobic polyester article is provided with a generally hydrophilic surface by contacting said generally hydrophobic polyester with a copolymeric material while said polyester is at a temperature above its melting point. The copolymeric composition comprises a generally hydrophobic moiety and a generally hydrophilic moiety. Also disclosed is a method for imparting the hydrophilic surface to a generally hydrophobic polyester which method comprises contacting a generally hydrophobic polyester with a copolymeric material while said generally hydrophobic polyester is at a temperature above its melting point. In one preferred embodiment the generally hydrophobic polyester is contacted with said copolymeric composition immediately after said polyester has been extruded and while said polyester is undergoing die swell.
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Meirowitz Randy E.
Phelan Robert J.
Kimberly-Clark Corporation
Mielke Thomas J.
Sluby P. C.
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