A Process for Making a Hydrophilic Nonwoven Structure, a Nonwoven Structure Produced Thereby and an Article Containing the Nonwoven Structure
AssigneeDow Global Technologies LLC
InventorsRudolph J. Koopmans, Evren Aslan-Guerel, Gert J. Claasen
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Abstract
A process for making a hydrophilic nonwoven structure comprising: forming a nonwoven structure comprising fibers; and exposing the nonwoven structure to an atmospheric plasma comprising an inert gas and a substance having a polar group and which can be vaporized or made into an aerosol and which forms a free radical upon exposure to a dielectric barrier discharge is provided. Also provided are nonwoven structures produced thereby and articles containing the nonwoven structures.
Claims15
A process for making a hydrophilic nonwoven structure comprising:
- a. forming a nonwoven structure comprising fibers;
- and
- b. exposing the nonwoven structure to an atmospheric plasma comprising an inert gas and a substance having a polar group and which can be vaporized or made into an aerosol and which forms a free radical upon exposure to a dielectric barrier discharge.
A nonwoven structure comprising fibers having a chemically modified surface, wherein the chemically modified surface comprises a hydrophilic moiety covalently bonded to a polymer which forms a fiber surface, wherein the nonwoven structure is characterized by having a contact angle equal to or less than 90° following at least 3 insults of water containing 0.9 wt % NaCl.
(canceled)
Dependencies are inferred from the claim text.