Biocidal protection system

A technology of biological and active protective agent, applied in the field of antibacterial system, can solve the problem of lack of biocidal efficacy and other problems

Inactive Publication Date: 2003-09-10
NOVAPHARM RES AUSTRALIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quaternary ammonium compounds used as softeners or surfactants are neither natural nor effective antimicrobial agents, nor are their biocidal activity inactivated by ions in formulations or water, and are essentially completely absent from use in laundry detergents any biocidal potency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 is a composition which is a storage stable concentrate but diluted with water to a ratio of 200:1 to 1000:1 (ie 200 or 1000 parts / wt water to 1 part / wt concentrate) for use. The diluted (200:1) solution is effective as a surface cleaner and leaves a disinfectant on the surface which prevents bacterial growth for at least 24 hours after application. It is also effective if the surface is pretreated with eg 2 wt% tryptone or 2 wt% yeast by weight of a dilute solution.

[0047] g / l

Benzyldimethylammonium chloride, CAS 68424-85-1

150

Sodium tetraborate decahydrate, CAS 12007-42-0

30

Glycerin, CAS 56-81-5

25

Terric GN9 (Note 1)

200

Dipropylene glycol methyl ether CAS 34590-94-8

100

water balance to

1000

[0048] Note 1: Terric GN9 is ethoxylated nonylphenol purchased from ORICA, which is a nonionic surfactant.

[0049] preparation

[0050] Sodium tetraborate is disso...

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PUM

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Abstract

The invention relates to a shelf stable liquid disinfectant concentrate composition containing at least 1% by weight of a quat biocide (biocidally active quaternary ammonium compounds) and capable of dilution with 20 parts of water to 1 part of concentrate to produce a diluted solution, the diluted solution exhibiting a MIC after 24 hours in the presence of up to 2% tryptone (or the protein equivalent thereof) which is less than the MIC of a simple solution of the same concentration of the same quat biocide in water in the presence of the same concentration of the protein. The biocidal efficacy of the quat biocide may be protected by an "activity protector" selected from the group consisting of "enzyme stabilisers", "enzyme stabilising systems", micelle formation modifiers and inhibitors, and combinations thereof. The invention also relates to a disinfectant working solution prepared from the concentrate, and to a method of protecting a quat biocide from deactivation.

Description

field of invention [0001] The invention relates to an antibiotic system using a quaternary ammonium antibiotic and a method for disinfecting the system. Background of the invention [0002] Quaternary ammonium compounds are a well known class of biocides. Among these, monomeric quaternary ammonium compounds are more effective and less expensive than the recently developed polymeric quaternary ammonium compounds. Although not all quaternary ammonium compounds are antibiotic-resistant, or have antibiotic properties to the same degree as each other, the link between antibiotic resistance and chemical structure is the subject of extensive investigation reported in the literature. Those skilled in the art can readily distinguish between quaternary ammonium compounds that are useful as biocides and those that are not. The abbreviation (quat. biocidal agent) is used herein to refer to biocidally active quaternary ammonium compounds. [0003] The main advantage of quaternary ammo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/00A01N25/04A01N33/12A01N59/14
CPCA01N33/12A01N63/50A01N59/14A01N31/02A01N25/22A01N25/02A01N2300/00
Inventor A·萨瓦S·克里兹尔
Owner NOVAPHARM RES AUSTRALIA
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