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Antimicrobial polymers and coatings

An antibacterial composition and polymer technology, applied in animal repellents, plant growth regulators, botany equipment and methods, etc.

Inactive Publication Date: 2011-07-20
U S D CORP A CA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the commercially available antimicrobial coatings and other antimicrobial polymers are believed to provide broad spectrum functionality against bacteria, mold, fungi and viruses simultaneously

Method used

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  • Antimicrobial polymers and coatings
  • Antimicrobial polymers and coatings
  • Antimicrobial polymers and coatings

Examples

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preparation example Construction

[0051] The present invention has developed a new process for the preparation of polymeric N-halamines in which a halogenated monomer is polymerized rather than polymerized and then halogenated as is normally employed. An advantage of the new method is that the monomers are liquid at room temperature, which means that the monomers can be homogeneously dispersed in water even in the presence of conventional emulsifiers, forming stable emulsions that are readily polymerizable to form poly(Cl- TMPM) latex emulsion, and the new poly(Cl-TMPM) emulsion can be directly used for antibacterial, without the "irradiation under halogen source" step required by the traditional "post-halogenation" method to prepare polymeric N-halamines. In other cases, pre-halogenated monomers may have different solubility in commonly used solvents, or have other different physical / chemical properties compared to the original unhalogenated monomers, all of which can be used to change / modify / improve Process ...

Embodiment

[0068] raw material

[0069] Ammonium persulfate ((NH 4 ) 2 S 2 o 8 ), 2,2,6,6-tetramethyl-4-piperidinyl methacrylate (TMPM), sodium dichloroisocyanurate (DCCANa) and dioctanoic sodium sulfosuccinate (DSS), received Use immediately. The microorganisms Staphylococcus aureus (S.aureu, ATCC 6538), Escherichia coli (E.coli, ATCC 15597), Methicillin-resistant Staphylococcus aureus (MRSA, ATCC BAA-811) obtained from the American Type Culture Collection (ATCC), Vancomycin-resistant Enterococcus faecium (VRE, ATCC 700221), Candida tropicalis (C. tropicalis, ATCC 62690), Staphylococcus papillosa (S. chartarum, ATCC 34915) and MS2 virus (ATCC 15597-B1).

[0070]Materials used included cotton fabrics (available from Testfabrics Inc.) that were washed with acetone to remove impurities prior to use. 2,2,6,6-Tetramethyl-4-piperidinylmethacrylate (TMPMA) (Wako chemicals Inc.) was purified by precipitation from acetone solution into water. Escherichia coli (E. coli, ATCC 15597), Staphy...

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Abstract

Biocidal compounds have been synthesized and tested by the invention. These biocidal compounds have broad-spectrum efficacy and their biocidal properties are easily renewable. Illustrative examples of these biocidal compounds include N-halamine monomers and polymers and silver sulfadiazine polymers. These compounds can be used to add biocidal function to various materials and articles.

Description

technical field [0001] The present invention relates generally to antimicrobial materials and more particularly to renewable or replenishable antimicrobial materials. Background technique [0002] Microorganisms have a strong ability to survive on the surface of ordinary materials, and some types of microorganisms, including drug-resistant strains, can survive for more than 90 days. Contaminated materials can be a potent and significant source of cross-contamination and cross-infection. One potential way to reduce the above risks is to introduce antimicrobial properties on materials that are frequently touched and thus potentially have a high risk of spreading disease. [0003] In some cases, the need to control microbial contamination of surfaces in residential, commercial, institutional, industrial and sanitary applications has led to the development of biocidal polymers. These biocidal polymers are attractive options for medical devices, hospital and dental equipment, w...

Claims

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Application Information

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IPC IPC(8): C08F8/20C08F220/34C08F226/02C08F226/06A01N25/10A01N43/54A01N59/00A01N59/16
CPCC08F226/06C08F8/20A01N43/90A01N59/00A01N43/40A01N55/02C08F26/02C08F26/06C08F20/34
Inventor 孙玉宇曹政兵
Owner U S D CORP A CA
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