Stable, low free formaldehyde, synergistic antimicrobial compositions of aldehyde donors and dehydroacetic acid

An antibacterial composition, dehydroacetic acid technology, applied in the direction of aldehyde active ingredients, anhydride/acid/halide active ingredients, animal repellents, etc. And other issues

Inactive Publication Date: 2005-10-19
LONZA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although used to control bacterial, fungal, and other contamination in personal care and household products, these substances have various use limitations: including being too expensive, having limited antibacterial or antifungal activity or solubility in water, and being excessively pH dependent , adverse toxicity and skin sensitization or possible carcinogenicity, or they can be inactivated by commonly used materials
Also, in order to achieve total microbiological control, a large amount of preservatives must be added to the product, making it more difficult to formulate
Also, when a large amount of additives are used, the possibility of negative effects on the product such as instability, odor and decomposition of the product becomes greater

Method used

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  • Stable, low free formaldehyde, synergistic antimicrobial compositions of aldehyde donors and dehydroacetic acid
  • Stable, low free formaldehyde, synergistic antimicrobial compositions of aldehyde donors and dehydroacetic acid

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Embodiment Construction

[0015] As used herein, the phrases "antibacterial", "bactericidal" and "inhibiting bacterial growth" mean killing, inhibiting or controlling the growth of bacteria, yeasts, fungi and algae.

[0016] As used herein, the phrase "microbial contamination" refers to microbial contamination including bacteria, yeast, fungi and algae.

[0017] An "antibacterially effective amount" is an amount effective to inhibit the growth of and / or kill microorganisms.

[0018] The first component of the antimicrobial composition comprises one or more aldehyde donors.

[0019] Aldehydes and Aldehyde Donors

[0020] The term "aldehyde" refers to any compound having an aldehyde group, especially those aldehydes having antimicrobial activity, such as formaldehyde, o-phthalaldehyde, cinnamaldehyde and mixtures thereof.

[0021] As used herein, the term "aldehyde donor" is defined as any material that is not an aldehyde but upon dilution with water releases a compound capable of reacting positively w...

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PUM

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Abstract

The present invention provides a stable, low free formaldehyde, synergistic antimicrobial composition, and a method of inhibiting the growth of or reducing microorganisms by applying the composition. Preferably, the constituents are dimethylol dimethylhydantoin, monomethylol dimethylhydantoin, dimethyl hydantoin, and dehydroacetic acid or its salts thereof. The composition has a free formaldehyde content of less than 0.2% and is beneficial for controlling microbiological and fungal contamination in personal care products, household products and industrial products and systems.

Description

field of invention [0001] The present invention relates to a stable synergistic antimicrobial mixture low in free formaldehyde, the first component of which comprises one or more aldehyde donors, the second component comprises a stabilizer, the third component comprises dehydroacetic acid or its Salt. Background of the invention [0002] The need for effective and economical preservative compositions is well known. Many products require the addition of preservatives for protection from microbial contamination and microbial growth. Examples of such products include personal care products such as shampoos, creams, lotions, cosmetics, and soaps; household products such as laundry detergents, hard surface cleaners, fabric softeners; and various industrial products such as paints, wood , textiles, adhesives, sealants, leather goods, ropes, pulp, plastics, fuels, oils and rubber and metal working fluids. Control of slime-producing bacteria and fungi in pulp and paper mills and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/18A01N25/22A01N35/02A01N43/16A01N43/50A61K31/11A61K31/19A61K31/4164
CPCA01N43/50A01N35/02A01N2300/00A01N43/16
Inventor P·J·鲁茨A·M·塔菲士
Owner LONZA LTD
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