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1. (WO2011150224) A PHOSPHATE-FREE HIGHLY CONCENTRATED AQUEOUS DISPERSION COMPOSITION OF BIOCIDES AND PROCESS FOR PREPARING THE SAME

Pub. No.:    WO/2011/150224    International Application No.:    PCT/US2011/038164
Publication Date: Dec 1, 2011 International Filing Date: May 26, 2011
IPC: A01N 25/00
Applicants: ISP INVESTMENTS INC.
PREMACHANDRAN, Raman
WINKOWSKI, Karen
Inventors: PREMACHANDRAN, Raman
WINKOWSKI, Karen
Title: A PHOSPHATE-FREE HIGHLY CONCENTRATED AQUEOUS DISPERSION COMPOSITION OF BIOCIDES AND PROCESS FOR PREPARING THE SAME
Abstract:
A phosphate-free, highly-concentrated aqueous dispersion composition comprising at least one biocide, sulfosuccinate based surfactant, block copolymer, suspending agent, and optionally an antifoaming agent and desired additives if any. The composition of the present application is significantly stable against heat, cold, transit, storage and dilution for at least 18 months. The preferred biocides of the dispersion composition are 2-methyl-4-isothiazolin-3-one (MIT), 1,2- Benzisothiazolin-3-one (BIT), 5-ChIoro-2-methyl-4-isothiazolin-3-one (CMIT), 2-Octyl-4- isothiazolin-3-one (OIT) 3-Iodo-2-propynylbutyl carbamate (IPBC), oxyfluorfen, thiabendazole, terbutryn, zinc pyrithione (ZnPy), bronopol, folpet, diiiron, dehydroacetic acid (DHA), dazomet and carbendazim alone or in combination. Also disclosed is a process for preparing the dispersion composition and appropriate applications thereof.