FIELD: chemical industry.
SUBSTANCE: the invention is dealt with field of chemical industry, in particular, with combinations of stabilizing agents used for production hollow polyolefin items in a method of centrifugal molding and with a combination of technological additives. The method provides for a loading of polyolefin with a combination of stabilizing agents, mix them and fill in the press molds with this mixture. Then for melting of the stabilized polyolefin, the mixture is heated up in a furnace up to the temperature above 280°С at rotation of the press mold at least around of 2 axes. During rotation the polymeric material is distributed on walls. Then the mould being still in rotation is cooled with its consequent opening and removal of the produced hollow item. At that the combination of stabilizing agents includes: (а) at least one compound from group of organic phosphites and phosphonites; (b) one or several compounds taken from a group composed of: (i) derivatives of hydroxylamine and (ii) derivatives of aminooxides and (с) at least one compound from a group of stabilizing agents based on sterically hindranced amine. The produced items have a perfect original color and stability against action of the furnace gases.
EFFECT: the invention allows to produced items with a perfect original color and stability against action of the furnace gases.
20 cl, 2 tbl, 6 ex
