METHOD OF PRODUCING COMPLEX STABILISERS FOR CHLORINE-CONTAINING POLYMERS Russian patent published in 2010 - IPC C08K5/98 C07C51/41 C08K5/13 C08K5/103 C08K5/524 C08K13/06 

FIELD: chemistry.

SUBSTANCE: carboxylic acids are reacted with oxides and/or hydroxides of Zn and Ca metals in the presence of glycerin, ionol, epoxidated soya oil, epoxy resin, diphenylol propane, phosphite NF while heating, in which the complex stabiliser is obtained through reaction of carboxylic acids with oxides and/or hydroxides of Ca, Zn, Mg, Al in the presence of glycerin and additives selected from ionol, epoxidated soya oil, epoxy resin, diphenylol propane, phosphite NF, diphenyl-n-butylphosphite, PES-5 polyethylsiloxane liquid, Penta-1006 or Penta-1005 plastic modifier, calcium stearate while heating, in which the carboxylic acids used are oleic acid, 2-ethylhexane acid, α,α'-branched C₁₀-C₂₆ monocarboxylic acids. The carboxylic acids are first reacted with oxides and/or hydroxides of Zn, Ca, Mg, Al and glycerin at 140-180ºC to obtain a mixture consisting of salts of carboxylic acids and glycerin monoether of carboxylic acid, and an additive is added to the reaction mass only when acid number not greater than 5 mg KOH/g is reached. The process is carried out in the following ratio of components, wt %: carboxylic acids 6.3-60.4; oxides and/or hydroxides of metals 1.2-8.3; glycerin 8.5-20.4; additives - the rest.

EFFECT: simplification of the technological process of producing complex stabilisers of chorine-containing polymers, cutting on the number of technological operations, higher environmental safety of the process owing to prevention of formation of wastes and wider range of non-toxic complex stabilisers of chlorine-containing polymers.

2 cl, 27 ex, 3 tbl