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Preservation without microbiocides

An antimicrobial and composition technology, applied in the direction of biocide, biocide-containing paint, biocide, etc., can solve the problem of insufficient stability of water-based preparations

Pending Publication Date: 2022-06-03
OMYA INT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the use of microbicides in aqueous formulations is subject to increasing restrictions, especially with regard to their concentration
However, at reduced concentrations of the microbicide, the efficacy of the corresponding microbicide against bacteria, fungi, yeast, algae, and / or mold is often compared to the antimicrobial efficacy observed at higher concentrations of the same microbicide No longer satisfactory, so the antimicrobial effect obtained at reduced microbicide concentrations is often insufficient to stabilize aqueous formulations against microbial growth

Method used

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  • Preservation without microbiocides
  • Preservation without microbiocides

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Experimental program
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Embodiment

[0228] Measurement methods

[0229] The following measurement methods are used to evaluate the parameters given in the description, examples and claims.

[0230] BET specific surface area of ​​material

[0231] The BET specific surface area is measured by the BET method using nitrogen according to ISO 9277.

[0232] Particle size distribution (mass percent of particles with diameter 50 )

[0233] The weight-average particle size and particle size mass distribution of particulate materials are determined by sedimentation methods, ie, analysis of sedimentation behavior in a gravitational field. Using Sedigraph from Micromeritics Instrument Corporation TM 5100 to measure.

[0234] This method and apparatus are known to the skilled person and are commonly used to determine the particle size of fillers and pigments. Measured at 0.1 wt% Na 4 P 2 O 7 in aqueous solution. Disperse the sample using a high speed stirrer and a sonicator.

[0235] pH measurement

[0236] The...

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Abstract

The present invention relates to an antimicrobial composition comprising at least one source of water-soluble or water-dispersible zinc ions in combination with at least one source of water-soluble or water-dispersible lithium ions and optionally at least one source of water-soluble or water-dispersible magnesium ions and / or at least one source of water-soluble or water-dispersible sodium ions, the invention also relates to an aqueous formulation, a method of preserving an aqueous formulation against microorganisms and the use of an antimicrobial composition for preserving an aqueous formulation against microorganisms.

Description

[0001] This application is a divisional application of CN201880032187.X. technical field [0002] The present invention relates to an antimicrobial composition comprising at least one water-soluble or water-dispersible source of lithium ions and optionally at least one water-soluble or water-dispersible source of magnesium ions and / or at least one water-soluble source of magnesium ions At least one water-soluble or water-dispersible source of zinc ions in combination with a water-soluble or water-dispersible source of sodium ions, the present invention also relates to aqueous formulations, methods of preserving aqueous formulations against microorganisms, and antimicrobial compositions for preserving aqueous formulations to resist the use of microorganisms. Background technique [0003] In practice, aqueous formulations (especially suspensions, emulsions, dispersions or slurries) of water-insoluble solids such as minerals, fillers or pigments are widely used as coatings, fil...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01N59/00A01N59/06A01P1/00A01P3/00C09D5/14
CPCA01N59/16A01N59/00A01N59/06C09D5/14A01P1/00A01N59/08
Inventor J·格劳比茨K·萨特林
Owner OMYA INT AG
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