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US 2010/0075131 A1Published application
Ligand Graft Functionalized Substrates
Assignee3M Innovative Properties Company
InventorsMark R. Etzel, Kannan Seshadri, Jerald K. Rasmussen, Clinton P. Waller, JR., Douglas E. Weiss, Yi He
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Abstract
Polyethyleneimine and polyalkylene biguanide ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
Claims20
An article comprising a substrate and extending from the surfaces thereof grafted polyethyleneimine ligand groups.
An article comprising a porous base substrate having interstitial and outer surfaces;
- and grafted ligand groups extending from the surfaces of the porous base substrate, wherein the grafted ligand group comprises the reaction product of a grafted electrophilic functional group and a ligand compound:
- wherein:
- x may be zero, y is at least 1, and x+y is 2 to 2000.
A method of preparing a ligand functional substrate comprising:
- 1) providing a thermoplastic or a polysaccharide polymer substrate;
- 2) grafting a functional group to the surface of the substrate to produce a substrate having a grafted electrophilic functional groups extending from the surface(s) thereof;
- and
- 3) reacting the grafted electrophilic functional group with a ligand compound:
- wherein:
- x may be zero, y is at least 1, and x+y is 2 to 2000;
- to produce a substrate having grafted ligand groups extending from the surface(s) of the substrate.
4 more elements
Dependencies are inferred from the claim text.