Method for fabrication of silicone composite with antimicrobial coating

• US 8,133,423 B2
• Filed: 10/20/2009
• Issued: 03/13/2012
• Est. Priority Date: 10/20/2009
• Status: Active Grant

• Current Assignee: Chinese University of Hong Kong, Hong Kong Polytechnic University
• Original Assignee: Chinese University of Hong Kong, Hong Kong Polytechnic University
• Inventors: Tang, Chak Yin, Chen, Da-zhu, Yue, Tai Man, Chan, Yuen Yee
• Primary Examiner(s): Meeks, Timothy
• Assistant Examiner(s): TSCHEN, FRANCISCO W
• Application Number:
  US12/581,889
• Publication Number:
  US 20110091669A1
• Time in Patent Office: 875 Days
• Field of Search: 28/341, 28/357, 28/361, 28/362, 28/369, 28/369.1, 28/369.2, 28/68, 427 21- 231, 264/632, 264/636, 264/637, 264/641, 264/650, 264/651
• US Class Current: 264/240
• CPC Class Codes: A61L 2/232 layered or coated
• CPC Class Codes: C08J 2383/04 Polysiloxanes
• CPC Class Codes: C08J 7/043 Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: C08J 7/06 with compositions not containing macromolecular substances
• CPC Class Codes: Y10T 428/13 Hollow or container type article [e.g., tube, vase, etc.]

Abstract

A method of fabricating silicone composite with a layer of antimicrobial coating, the method includes forming an antimicrobial mixture by adding a calculated amount of antimicrobial agent to a solution of water and alcohol, depositing the antimicrobial mixture in a container with a thickness of 0.1 μm to 10 μm, evaporating the water and alcohol of the antimicrobial mixture to form the layer of antimicrobial coating, adding silicone resin on top of the layer of antimicrobial coating and allow the silicone resin to permeate and crosslink with the layer of antimicrobial coating and removing the silicone composite with the layer of antimicrobial coating from the container.

Claims

1. A method of fabricating silicone composite with a layer of antimicrobial coating, the method comprising:

forming an antimicrobial mixture by adding a calculated amount of antimicrobial agent to a solution of water and alcohol;

depositing the antimicrobial mixture in a container, the antimicrobial mixture having a thickness of 0.1 μ

m to 10 μ

m;

evaporating the water and alcohol of the antimicrobial mixture to form the layer of antimicrobial coating;

adding silicone resin on top of the layer of antimicrobial coating and allow the silicone resin to permeate and crosslink with the layer of antimicrobial coating; and

removing the silicone composite with the layer of antimicrobial coating from the container.

2. The method according to claim 1, wherein the antimicrobial agent includes silver ion-containing sodium zirconium phosphate/zeolite, zinc oxide or titanium dioxide.

3. The method according to claim 1, wherein the silicone resin is room temperature vulcanizing (RTV) silicone rubber.

4. The method according to claim 1, wherein the solution of water and alcohol has a ratio of 1 to 3.