FIELD: chemistry.
SUBSTANCE: micro-emulsion containing metal carbonate/carboxylate, useful as thermostabiliser for polyvinylchloride resin and emitting lower amount of volatile products when heated, includes a) metal carbonate/carboxylate, obtained by interaction of oxide and/or hydroxide of metal, selected from group including sodium, potassium, calcium, magnesium, zinc and mixture of said metals and aliphatic acid, whose aliphatic component contains up to approximately 30 carbon atoms, and carbon dioxide in oil; b) one or more non-phenol compounds, containing approximately two or approximately three hydroxyl groups; and c) one or more polyols and/or alcohol ethoxylates, and/or alcohol propoxylates, which contain from approximately 6 to approximately 24 carbon atoms in alcohol and 0-3 ethyleneoxide units and/or 0-3 propyleneoxide units. Halogen-containing composition includes polyvinylchloride homopolymer or vinylchloride copolymer with unsaturated monomer and efficient amount of said micro-emulsion.
EFFECT: production of micro-emulsion containing metal carbonate/carboxylate, useful as thermostabiliser for polyvinylchloride resin and emitting lower amount of volatile products when heated.
47 cl, 9 ex
