FIELD: chemistry of polymers, chemical technology.
SUBSTANCE: invention relates to acryl-silicone hybrid modifying agent with impact viscosity, a method for their preparing and compositions based on vinyl chloride resins comprising above said materials. Acryl-silicone hybrid modifying agent with impact viscosity comprises the following components: (a) from 0.01 to 10 parts by mass of seed charge-forming agent prepared by mechanism of emulsion copolymerization of vinyl monomers and hydrophilic monomers; (b) from 64 to 94 parts by mass of hybrid acryl-silicone rubber core covering a seed charge-forming agent wherein phase of polyorganosiloxane rubber is dispersed locally on internal part and core surface made of acryl rubber, and (c) from 6 to 40 parts by mass of envelope covering abovementioned rubber core and comprising alkylmethacrylate polymers. Thermoplastic resins comprising abovementioned materials being especially added to vinyl chloride resin acquire the excellent impact stability, resistance to weather and high luster.
EFFECT: improved preparing method, valuable technical properties of materials.
18 cl, 5 tbl, 27 ex
