PARTICULAR SILIC CONMODITIONS OF ACRIL CHARACTERISTICS, PARTICULARS OF FROZEN FOOLYMES BASED ON SILICCONMODIFIED ACRIL CHARACTERISTICS AND THERMOPLASTIC HAIR MASSES

摘要

To provide novel silicone-modified acrylic rubber particles prepared at a high conversion without using a special polymerization plant by graft-polymerizing (B) 45 to 5,000 parts by weight of a silicone rubber precursor comprising 99.9 to 80 % by weight of a low molecular weight organosiloxane, 0.1 to 10 % by weight of a polyfunctional silane compound and 0 to 10 % by weight of a reactive silane compound having a polymerizable unsaturated bond or a mercapto group in its molecule to (A) 100 parts by weight of acrylic rubber particles, and if necessary, thereto by graft-polymerizing (C) 0.1 to 5,000 parts by weight of an acrylic rubber precursor; graft copolymer particles of silicone-modified acrylic rubber which are prepared from the above-mentioned acrylic rubber particles and are capable of improving weather resistance and impact resistance of various thermoplastic resins; and a thermoplastic resin composition comprising the above-mentioned resin and the graft copolymer particles.