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US 9,907,702 B2Granted
Monomer-grafted fibers and uses thereof
Assignee3M Innovative Properties Company
InventorsCary A. Kipke, John J. Rogers, Michael R. Berrigan, Clinton P. Waller, Jr., Douglas E. Weiss
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Abstract
Wound dressing articles comprising a nonwoven web comprising a plurality of fibers having grafted pendant hydrophilic groups, methods that use high energy irradiation for making a plurality of fibers having grafted pendant hydrophilic groups, useful for making wound dressing articles.
Claims13
A wound dressing comprising:
- a nonwoven web comprising a plurality of fibers irradiation-grafted with individual polymer chains that extend from the surface of the fibers;
- wherein the individual polymer chains comprise monomers having at least one poly(alkylene oxide) group and anionic monomers having at least one hydrophilic group;
- wherein the monomers having at least one poly(alkylene oxide) group make up 2 to 25 wt. % of all monomers making up the polymer chains;
- and
- wherein the polymer chains are not cross-linked to any appreciable extent.
2 more elements
Dependencies are inferred from the claim text.