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Anti-microbiology composition for storing wood

An antimicrobial and composition technology, applied in the direction of chemicals, biocides, wood processing appliances, etc. for biological control, can solve the problem of no synergistic ratio

Active Publication Date: 2008-06-18
NUTRITION & BIOSCIENCES USA 2 LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example EP 864,406 discloses the monoethanolamine complex combination of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one and copper, but this document does not propose the synergistic ratio claimed herein

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The synergy of the combinations of the invention is demonstrated by testing various concentrations and ratios of the compounds.

[0019] One measure of synergy is the industry-accepted method described by Kull, F.C., Eisman, P.C., Sylwestrowicz, H.D. and Mayer, R.L. in Applied Microbiology 9:538-541 (1961), which uses the ratio Determined by:

[0020] C a / C A +C b / C B = Synergy Index ("SI"), where:

[0021] C A = Compound A (first component) acting independently to produce the endpoint concentration in ppm (MIC of Compound A).

[0022] C a = The concentration of compound A in the mixture to produce the endpoint, in ppm.

[0023] CB = Compound B (second component) acting independently to produce the endpoint concentration (MIC of Compound B) in ppm.

[0024] C b = The concentration of compound B in the mixture that produced the endpoint, in ppm.

[0025] When C a / C A and C b / C B When the sum is greater than 1, it indicates antagonism. When the sum is ...

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PUM

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Abstract

The present invention provides a synergistic antimicrobial composition useful for preserving wood comprising: (a) monoethanolamine complex of copper(II); and (b) 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one or copper containing 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one and micronized copper, the activity of the composition is higher than the activity observed by each antimicrobial composition.

Description

technical field [0001] The present invention relates to combinations of microbicides useful for preserving wood which are more active than that observed for the individual antimicrobial compounds. Background technique [0002] Using a combination of at least two antimicrobial compounds can broaden the potential market, reduce the use concentration and cost, and also reduce waste. In some cases, commercial antimicrobial compounds fail to provide effective microbial control even at high use concentrations due to their poor activity against certain classes of microorganisms, such as those resistant to some antimicrobial compounds. Combinations of different antimicrobial compounds are sometimes used for overall control of microorganisms in a particular end-use environment. For example EP 864,406 discloses the monoethanolamine complex combination of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one and copper, but this document does not suggest the synergistic ratios claimed here. Ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01P3/00A01N43/80B27K7/00
CPCA01N59/20A01N43/80A01N33/08A01N2300/00
Inventor D·E·霍伊J·P·维尔L·L·罗伊特曼
Owner NUTRITION & BIOSCIENCES USA 2 LLC
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