Title:
METHOD FOR MERCURISATION OF CELLULOSE-CONTAINING MATERIALS FOR IMPARTING BACTERICIDAL AND VIRUCIDAL ACTIVITY TO THEM
Document Type and Number:
WIPO Patent Application WO/2022/123553
Kind Code:
A9
Abstract:
Mercurisation of a cellulose-containing carrier material imparts bactericidal and virucidal properties to this carrier material and to articles manufactured from this carrier material. The method of the invention is based on photochemical mercurisation of a cellulose-containing carrier material with water-soluble mercury-containing compound under irradiation with full-spectrum bright light. The carrier material, which contains bound mercury ions after the irradiation, is subjected to fixation by briefly immersing said carrier material in a hot aqueous solution of alkali, thereby hydrating and neutralising the mercury ions. As a result of this hydration, the bound mercury ions are reduced and become neutral giving the distinct dark colour to the carrier material. The irradiation can be carried out through punctured/perforated or slotted/cut-out templates or heat-resistant negative glass slides resulting in dark coloured images or patterns produced on the carrier material or articles thereof.
Inventors:
MILOVANOV AKIM (IL)
Application Number:
PCT/IL2021/051309
Publication Date:
August 04, 2022
Filing Date:
November 04, 2021
Export Citation:
Assignee:
MILOVANOV AKIM (IL)
IOULIA MILOVANOV (IL)
IOULIA MILOVANOV (IL)
International Classes:
A01N25/10; A01N25/34; A01N43/16; A01N59/18; A01P1/00
Attorney, Agent or Firm:
PAPPER, Vladislav et al. (IL)
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