EXPANSIBLE POLYOLEFIN PARTICLES Russian patent published in 2007 - IPC C08J9/224 C08L23/02 

FIELD: chemical industry; automotive industry; other industries; production of the expansible polyolefin particles.

SUBSTANCE: the invention is pertaining to the expansible polyolefin particles, which are coated with the mean used for prevention of the particles sticking together at frothing and are applied in the capacity of the foamed plastics in the automotive industry, in the packing industry and in the field of leisure. The expansible polyolefin particles contain from 1 up to 40 mass % of the volatile organic frothing agent and have the bulk density of more than 400 g/l. The coating contains from 0.01 up to 3 mass %, in terms of the mass of the particles, as the mean of prevention of sticking together - the salt and-or ester and-or the amide of the long-chained acid from the fatty acids, preferentially - calcium stearate. The polyolefin particles under the invention at frothing do not stick together and without the problems can be welded in the foam molded products.

EFFECT: the invention ensures that the polyolefin particles at frothing do not stick together and without the problems can be welded in the foam molded products.

8 cl, 2 tbl, 15 ex