FUNGICIDE COMBINATIONS

MX435149BActive Publication Date: 2026-06-12LANXESS DEUTSCHLAND GMBH
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Patent Information

Authority / Receiving Office
MX · MX
Patent Type
Patents
Current Assignee / Owner
LANXESS DEUTSCHLAND GMBH
Filing Date
2022-04-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing fungicide combinations, such as thiabendazole (TBZ) and azoxystrobin (AZO), fail to provide broad-spectrum antimicrobial protection against mold and mildew growth on building materials, particularly wall boards, due to issues like water sealing and compatibility with anionic auxiliaries, leading to inadequate resistance and potential health risks.

Method used

A fungicide combination of thiabendazole (TBZ) and pyrimethanil (PYM) in a weight ratio of 20:1 to 1.1:1, with a total biocidal active substance content greater than 99% by weight, synergistically inhibiting fungal growth on wall boards by incorporating additives like dispersants, surfactants, and thickeners to enhance application and efficacy.

Benefits of technology

The TBZ-PYM combination exhibits enhanced resistance to fungal infestation, demonstrating synergistic effects against various fungi, including Aspergillus and Penicillium species, with improved protection and reduced health risks, as evidenced by ASTM G21 test results.

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Abstract

The invention relates to a fungicidal combination comprising the biocides TBZ and PYM in the weight ratio of 20:1 to 1.1:1, in particular, 10:1 to 1.1:1, preferably 5:1 to 1.1:1, wherein the total amount of TBZ and PYM based on the total amount of biocidal active substances is greater than 99% by weight and for use in protecting wallboards.
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