Biocidal Mixtures for Wood Protection Using Penflufen and Copper
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Solution Overview
Problem
Current wood preservatives using copper compounds and azoles require high amounts of toxic azoles and have limitations in protecting against wood-destroying fungi, necessitating a more effective and safer alternative.
Innovation Solution
A biocidal mixture comprising penflufen-containing polymer particles, copper compounds, and specific alkanolamines, which enhances protection against wood-destroying fungi without the need for azoles, offering improved efficacy over unencapsulated penflufen when used with copper compounds and alkanolamines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wood preservatives use copper compounds combined with azoles, then protection against wood-destroying fungi is achieved, but high quantities of toxic azoles are required
Solution Approach 1:
The patent extracts and eliminates the toxic azole component from the traditional copper-azole wood preservative formulation. By removing azoles entirely and replacing them with copper compounds combined with penflufen-containing polymer particles and alkanolamines, the invention maintains protective efficacy while eliminating the harmful toxic substance from the composition.
Solution Approach 2:
The patent changes the chemical composition parameters of the wood preservative by substituting the azole class of compounds with a specific combination of copper compounds, penflufen-containing polymer particles, and alkanolamines. This parameter change in the active ingredient composition maintains the protective function against wood-destroying fungi while reducing toxicity.
2Reliability
If unencapsulated penflufen is used with copper compounds and alkanolamines, then some biocidal activity is achieved, but the spectrum of activity is limited and effectiveness is reduced
Solution Approach 1:
The patent applies the nesting principle by incorporating penflufen into polymer particles, creating a structured carrier system. This encapsulation nests the active ingredient within a protective matrix that enhances its performance. The polymer particles serve as a carrier that improves the biocidal effectiveness and broadens the spectrum of activity when combined with copper compounds and alkanolamines.
Solution Approach 2:
The patent creates a composite material system combining penflufen-containing polymer particles with copper compounds and alkanolamines. This composite formulation synergistically enhances the biocidal activity and expands the spectrum of protection against various wood-destroying fungi, achieving superior effectiveness compared to unencapsulated penflufen alone.
3Reliability
If high quantities of toxic azoles are used in wood preservatives, then protection against fungi is achieved, but safety and environmental concerns increase
Solution Approach 1:
The patent converts the harmful toxicity of traditional azole-based wood preservatives into a benefit by replacing them with a non-toxic alternative formulation. The copper compounds, penflufen-containing polymer particles, and alkanolamines combination provides equivalent or superior protection against fungi while eliminating the environmental and safety hazards associated with high quantities of toxic azoles.
Data Source
AI summary
The invention relates to biocidal mixtures containing polymer particles containing penflufene, copper compounds and special alkanol amines and to the use thereof for protecting wood and wood products, and wood protection means containing biocidal mixtures and optionally other active substances.