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US 2018/0007892 A1Published application
Anti-bacterial metallo ionomer polymer nanocomposite filaments and methods of making the same
AssigneeXerox Corporation
InventorsValerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
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Abstract
A composite filament includes a core particle comprising a styrene/acrylate polymer resin, and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a metal ion acrylate monomer, and methods of making thereof. Various articles can be manufactured from such composite filaments.
Claims20
A composite filament comprising:
- a core particle comprising a styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer;
- and
- a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a second metal ion acrylate monomer;
- wherein the total amount of metal presented in the composite filament ranges in a concentration of from about 0.5 ppm to about 50,000 ppm;
- and further wherein the composite filament has a diameter of from about 0.5 mm to about 5 mm.
2 more elements
A method of producing a composite filament, comprising:
- polymerizing a first mixture comprising a first styrene/acrylate copolymer to form a core styrene/acrylate polymer resin in an organic-free solvent;
- heating the core styrene/acrylate polymer resin;
- adding a shell styrene/acrylate ionomer resin by polymerizing a second mixture comprising a second styrene/acrylate copolymer and initiator to the formed polymer core styrene/acrylate polymer resin to form a shell disposed about the core styrene/acrylate polymer resin, thereby forming an emulsion of composite particles, wherein the shell styrene/acrylate ionomer resin comprises a metal;
- aggregating the emulsion of composite particles to form aggregated particles;
- coalescing the aggregated particles to form coalesced particles;
- washing the coalesced particles, thereby forming the composite powder;
- and
- extruding the composite powder to produce the composite filament.
5 more elements
An article comprising:
- a composite filament comprising:
- a core particle comprising a styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer;
- and
- a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a second metal ion acrylate monomer;
- wherein the total amount of metal presented in the composite filament ranges in a concentration of from about 0.5 ppm to about 50,000 ppm;
- and further wherein the composite filament has a diameter of from about 0.5 mm to about 5 mm.
3 more elements
Dependencies are inferred from the claim text.