Anti-bacterial metallo ionomer polymer nanocomposite filaments and methods of making the same
First Claim
Patent Images
1. A composite filament comprising:
- a core particle comprising a styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer, wherein the styrene/acrylate polymer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof; and
a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof, further wherein the styrene/acrylate ionomer resin comprises a second metal ion acrylate monomer;
wherein a 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.
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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.
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Citations
20 Claims
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1. A composite filament comprising:
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a core particle comprising a styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer, wherein the styrene/acrylate polymer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof; and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof, further wherein the styrene/acrylate ionomer resin comprises a second metal ion acrylate monomer; wherein a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of producing a composite filament, comprising:
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polymerizing a first mixture comprising a first styrene/acrylate copolymer to form a core styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer in an organic-free solvent; heating the core styrene/acrylate polymer resin, wherein the styrene/acrylate polymer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof; adding a shell styrene/acrylate ionomer resin by polymerizing a second mixture comprising a second styrene/acrylate copolymer and initiator to the 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 second metal ion acrylate monomer;
wherein the styrene/acrylate ionomer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof,aggregating the emulsion of composite particles to form aggregated particles;
coalescing the aggregated particles to form coalesced particles;washing the coalesced particles, thereby forming a composite powder; extruding the composite powder to produce the composite filament; wherein a 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. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An article comprising:
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a composite filament comprising; a core particle comprising a styrene/acrylate polymer resin and optionally a first metal ion acrylate monomer, wherein the styrene/acrylate polymer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof; and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a copolymer of styrene monomer, acrylate monomer, or mixtures thereof, further wherein the styrene/acrylate ionomer resin comprises a second metal ion acrylate monomer; wherein a 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. - View Dependent Claims (19, 20)
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Specification