Bactericidal nanocapsule, grapevine-like microparticle aggregate, disinfecting/sterilizing filter, and method for producing same
A technology of nanocapsules and manufacturing methods, applied in chemical instruments and methods, botanical equipment and methods, disinfectants, etc., can solve the problems of decreased activity, difficulty in mass production, complicated procedures, etc., and achieve the effect of preventing the invasion of pathogenic bacteria
Inactive Publication Date: 2021-10-29
ELETEN CO LTD
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Problems solved by technology
[0018] The above-mentioned microencapsulation techniques all have the following problems: the process is complicated in industrial production, and it is difficult to mass-produce
However, it is known that the hydrate of this metal oxide reduces the activity by reacting with carbon dioxide or moisture
[0028] That is, although the mask has sufficient activity immediately after wearing it, there is concern that its effect will decrease as the wearing time becomes longer
Method used
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Embodiment
[0197] Hereinafter, the present invention is illustrated by examples, but it is not intended to limit the present invention.
[0198] In addition, unless otherwise specified, the % described below represents weight%.
[0199] [Production of bactericidal nanocapsules]
[0200] First, bisphenol A epoxy resin (trade name: E-20, manufactured by Nantong Xingchen Synthetic Materials Co., Ltd., epoxy equivalent: 450-560) and phosphorus pentoxide (Hubei Xiangyang Gaolong▲phosphorus▼ Processing Co., Ltd. manufacturing, industrial pharmaceuticals) was dissolved in N-methylpyrrolidone (manufactured by Tianjin Guangfu Fine Processing Co., Ltd., reagent grade) to prepare a phosphorus pentoxide modified epoxy resin solution.
[0201] In this case, the molar ratio of epoxy resin to phosphorus pentoxide was adjusted to 1.6:1.
[0202] Then, potassium hydroxide (KOH) was added to the obtained solution to make the solution neutral, thus obtaining the phosphorus pentoxide-modified epoxy resin ...
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Abstract
The present invention provides a technique for disinfecting and sterilizing a filter, which can reduce the influence of a drug on the human body as much as possible while having a required disinfecting and sterilizing effect, and also can maintain the disinfecting and sterilizing effect for a long period of time. A bactericidal nanocapsule (1) for manufacturing a disinfecting / sterilizing filter according to the present invention comprises: nano-sized core microparticles (2) containing a quaternary ammonium salt and an aqueous epoxy resin; and a cationic aqueous coating layer (3) that is provided so as to cover the surface of the core microparticles (2) and contains calcium carbonate and an aqueous epoxy resin. The water-borne epoxy resin is epoxy resin obtained by modifying the molecular terminal with alkyl phosphate.
Description
technical field [0001] The present invention relates to a grape-shaped microparticle assembly obtained by adhering nanocapsules of a drug having a coating layer on nanofibers made of a polymer material such as polypropylene (PP), and a sterilizing filter using the microparticle assembly. technology. Background technique [0002] In recent years, nanofibers, which have attracted much attention, are not only used independently due to their own physical properties, but also in the field of composite materials, such as general-purpose products, filter materials, electronic parts, automotive parts, medical / biomaterials, etc. It has been put into practical use, and application development is also being actively carried out. [0003] The main features of nanofibers can be listed: 1) Super specific surface area effect (high adsorption, strong adhesion, high molecular recognition), 2) Nano size effect (low pressure loss, high transparency), 3) Supramolecular arrangement As a materi...
Claims
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IPC IPC(8): A01N25/28A01N33/12A01P1/00B01D35/00D06M15/555D06M11/76D06M13/463D06M23/12D21H21/36D21H17/52D21H17/67D21H17/07D06M101/20
CPCA01N25/28A01N33/12B01D35/00D06M16/00D06M15/555D06M11/76D06M13/463D06M23/12D21H21/36D21H17/52D21H17/675D21H17/07D06M2101/20
Inventor 黄国铭福岛利明
Owner ELETEN CO LTD