AQUEOUS COMPOUND AT LOW FREEZING POINT CONTAINING PHENOLATES, METHOD OF PREPARATION OF SUCH COMPOUND, AQUEOUS SUSPENSION OR DISPERSION CONTAINING SUCH COMPOUND Russian patent published in 2007 - IPC C07C39/235 C07C39/44 C07C37/88 C09K15/08 

FIELD: preservatives for metal-working or paper industry; preparation of varnishes and paints.

SUBSTANCE: hardening temperature of proposed compound is not above -10°C; compound contains the following components, mass-%: one or several phenolates, 50-80; crystallization inhibitor, 0.1-10; water and other components possessing biocide action. Used as phenolates in compound are phenol salts and/or phenolates having one or several aliphatic and/or aromatic substituents, ortho-phenyl phenolates, halogenated substituted phenolates, cresol salts, resorcine salts, etc. Method of preparation of phenolate-containing compound consists in filling the container with water and neutralizing agent, dissolving phenol compounds and addition of crystallization inhibitor. Dissolving temperature is 5-80°C, preferably 40-60°C. Used as crystallization inhibitor is one or several compounds of aliphatic glycols, such as ethylene glycol, monopropylene glycol and/or diethylene glycol and/or one or several aliphatic or aromatic alcohols in the amount of 1-3 mass-% in compound containing 60-70 mass-% of phenolate. Aqueous preservative suspension or dispersion of minerals and/or fillers and/or pigments includes compound in the amount of from 10 g/t to 250 g/t of suspension or dispersion.

EFFECT: low freezing point of compound.

21 cl, 22 ex