Title:
STABILIZED MIXTURES OF AN IODOPROPARGYL COMPOUND AND A FORMALDEHYDE DONOR
Document Type and Number:
WIPO Patent Application WO1999065316
Kind Code:
A9
Abstract:
A highly stable liquid formulation having broad spectrum preservative properties which constitutes an admixture of a dialkanol-substituted DMH, an iodopropynyl compound, a stabilizer of a hydantoin, urea or derivative thereof, and a hydroxyl solvent. Preferably 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.
Inventors:
LUTZ PATRICK J (US)
BAN SUSAN ALCORN (US)
FARINA THOMAS E (US)
BAN SUSAN ALCORN (US)
FARINA THOMAS E (US)
Application Number:
PCT/US1999/014171
Publication Date:
March 23, 2000
Filing Date:
June 18, 1999
Export Citation:
Assignee:
LONZA AG (US)
LUTZ PATRICK J (US)
BAN SUSAN ALCORN (US)
FARINA THOMAS E (US)
LUTZ PATRICK J (US)
BAN SUSAN ALCORN (US)
FARINA THOMAS E (US)
International Classes:
A01N25/22; A01N43/50; A01N47/12; A01N47/28; A01N29/02; A61K9/08; A61L2/16; (IPC1-7): A01N47/12
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