Patent ID: 6716916
Filing Date: 2004-04-06
Classification: C08F,C08L

Abstract:
Moulding composition containingA) at least one elastic/thermoplastic graft polymer obtained by free-radical emulsion polymerisation of resin-forming vinyl monomers in the presence of rubber present in latex form having a glass transition temperature of &lE;0Â° C. using an initiator combination comprising a persulfate compound and a redox initiator system and B) at least one copolymer synthesised from styrene and acrylonitrile and optionally further comonomers and optionally C) at least one resin selected from the group of polycarbonates, polyestercarbonates, polyesters and polyamides, characterised in that the graft polymer A) is produced in such a manner that, at the beginning of the graft polymerisation reaction the persulfate compound is added in quantities of 0.05 to 1.5 wt. % (relative to the monomers apportioned up to the time of addition of the redox initiator), after addition of 1 to 50 wt. % of the monomers (relative to the total quantity of monomers), the redox initiator components are added in quantities of 0.1 to 2.5 wt. % (relative to the monomers apportioned since the time of addition of the redox initiator).