Core-shell particles for improved impact resistance of the poly (meth) acrylate molding material

摘要

Core one relates to core-shell particles of a second one shell, in which the present invention is 75.0 mass relative to the total weight of at least (i) is the core and optionally the first one shell % of a (meth) acrylate repeating units; (ii) the first shell has a glass transition temperature below 30 ℃; second shell that exists by (iii) if at least 75 for the total mass contained 2.0% by weight of the (meth) acrylate repeating units; (iv) first shell following components based on the total weight: 92.0 to 98.0 and the weight% (E) (meth) acrylate repeating units At that time ((1) 2.0 to 8.0 wt% of a styrene repeat unit wherein, ^{R 6} represents those described in the specification of groups ^{R 1]} of the (F) Formula (E) and weight% of (F) to 160.0 as measured by a Coulter method is also put second shell which contains a) a 100.0% by weight total, the radius (v) a core-shell particles optionally present it is in the range of ~240.0nm. The invention further relates to their use as well as the molding material containing preparation of core-shell particles, the core-shell particles.