Antimicrobial phase-separable glass/polymer articles and methods for making the same

A technology of anti-microbial and anti-microbial reagents, applied in botany equipment and methods, chemical instruments and methods, biocides, etc., can solve problems such as high cost

Active Publication Date: 2018-12-21
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem is that the exposed surface or surfaces of some conventional antimicrobial articles can require additional costly surface treatments and other processing steps to properly expose the antimicrobial agents in these articles to achieve the desired antimicrobial properties. Microbial Efficacy Level

Method used

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  • Antimicrobial phase-separable glass/polymer articles and methods for making the same
  • Antimicrobial phase-separable glass/polymer articles and methods for making the same
  • Antimicrobial phase-separable glass/polymer articles and methods for making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Antimicrobial composite films were fabricated by extrusion process using various polymers as matrix materials. These membranes are used for Figure 1A The antimicrobial composite film 50a of the antimicrobial article 100a shown is comparable. Tables 1 and 2 below summarize the materials and process conditions used to fabricate these films. Prior to each run listed in Table 2, a specific polymer (eg, Polymer 1) was hand mixed with the copper phase-separable glass in a bag before being placed in the extruder. Next, the mixture of polymer and copper glass particles is put into an extruder, which is then used to extrude the antimicrobial composite film. In this example, a Leistritz AG MIC18-7R GL twin screw extruder (2.5 cm) was used to make films according to the conditions listed in Table 2. The resulting product from the extruder was directed through a 5 cm wide film and a set of roll / winding elements to form each film. like Figure 4A As shown, "Batch 3" in Table 2...

Embodiment 2

[0109] In this example, polycarbonate films (without phase-separable glass) were prepared according to "Batch 1" of Table 2 and the conditions listed in Example 1 above. Once the polycarbonate film was extruded through a die at about 290°C, it was rolled to final thickness at 140°C and imprinted into the copper glass listed in Table 1 above.

Embodiment 3

[0111] see Figure 5 , a bar graph showing the antimicrobial efficacy of the antimicrobial composite films from Examples 1 and 2 above (tested according to the modified EPA copper test protocol). Specifically, "Example 5-1" corresponds to "Batch 1" of Example 2, ie, the polycarbonate embossed with copper glass. "Example 5-2" corresponds to "Batch 2" of Example 1, that is, a polypropylene / copper glass composite film in which polypropylene and copper glass are co-extruded. Finally, Example "5-3" corresponds to "Batch 3" of Example 1, that is, a polypropylene / copper glass / carbon black composite film in which polypropylene, copper glass and carbon black are co-extruded into the final film.

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Abstract

An antimicrobial article that includes: an antimicrobial composite region that includes a matrix comprising a polymeric material, and a first plurality of particles within the matrix. The particles include a phase-separable glass with a copper-containing antimicrobial agent. The antimicrobial composite region can be a film containing the first plurality of particles that is subsequently laminatedto a bulk element. The first plurality of particles can also be pressed into the film or a bulk element to define an antimicrobial composite region. An exposed surface portion of the antimicrobial composite region can exhibit at least a log 2 reduction in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, and Pseudomonas aeruginosa bacteria under a Modified EPA Copper Test Protocol.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority under 35 U.S.C. § 119 to U.S. Provisional Application Serial No. 62 / 287,982, filed Jan. 28, 2016, on the basis of which is hereby incorporated by reference in its entirety. Background technique [0003] The present disclosure generally relates to antimicrobial articles and methods of making the same. More specifically, various embodiments described herein relate to glass / polymer composite antimicrobial articles with copper-containing antimicrobial agents and various methods of making the same. [0004] Consumer electronics, including touch-activated or touch-interactive devices, such as screen surfaces (eg, surfaces of electronic devices that have user interaction capabilities activated by touching specific portions of the surface) are becoming increasingly popular. As the degree of touchscreen-based interaction between the user and the device increases, so does the likelihood that surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/00C03C10/00C08K3/40C08K13/02A01N25/00A01N59/20A01N59/06A01N59/14A01N59/26C08K3/015
CPCC03C4/0035C03C10/00C08K3/40C03C2204/02A01N25/34C08K3/04C08K3/015A01N59/20C09K9/00A01N25/08A01N25/10C08L69/00C08L23/12C03C14/004C03C14/006C03C2214/04C03C2214/16
Inventor 蒋大跃K·A·瓦希拉克斯F·C·瓦格纳C·A·K·威廉姆斯
Owner CORNING INC
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