Stabilized mixtures of an iodopropargyl compound and a...

Details Stabilized mixtures of an iodopropargyl compound and a... Stabilized mixtures of an iodopropargyl compound and a...

A - Human Necessities

01

N

A01N 47/12 (2006.01)

Patent

CA 2300932

A highly stable liquid formulation having broad spectrum preservative properties which constitutes an admixture of a dialka-nol-substituted DMH, an iodopropynyl compound, a stabilizer of a hydantoin, urea or derivative thereof, and a hydroxyl solvent. Prefer-ably the constituents are dimethyloldimethylhydantoin, 3-iodo-2- propynylbutyl carbamate, dimethylhydantoin, and a glycol solvent. The preservative preferably has a total formaldehyde content of 5 % and less than 0.2 % of free formaldehyde. The composition is prepared by successively admixing the dialkanol-substituted dimethylhydantoin and the stabilizer, the hydroxyl solvent, and the iodopropynyl compound. Also described is a stabilized iodopropynyl compound preferably containing dimethylhydantoin as the stabilizer.

La présente invention concerne une formulation liquide très stable présentant des propriétés de conservateur à large spectre qui constitue un adjuvant d'une dyméthylhydantoïne à substitution dialcanol, un composé iodopropylinique, un stabilisant d'une hydantoïne, de l'urée ou de l'un de ses dérivés, et un solvant hydroxyle. Les constituants sont de préférence la diméthyloldiméthylhydantoïne, le 3-iodo-2-propynylbutyle-carbamate, la diméthylhydantoïne, et un glycol intervenant comme solvant. Ce conservateur présente de préférence une teneur totale en formaldéhyde d'environ 5 % pour moins de 0,2 % de formaldéhyde libre. La composition s'obtient par adjonctions successives de la dyméthylhydantoïne à substitution dialcanol et du stabilisant, du solvant hydroxyle et du composé iodopropynylique. L'invention concerne également un composé iodopropynylique stabilisé de préférence par une diméthylhydantoïne.

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