Patent ID: 6340721
Filing Date: 2002-01-22
Classification: C08K,C08L

Abstract:
A flame-retardant resin composition comprising:(A) 60 to 98 wt % of a thermoplastic resin comprising a rubber-reinforced resin (A-1) obtained by graft-polymerizing a monomer component (b) comprising an aromatic vinyl compound or an aromatic vinyl compound and other monomer(s) copolymerizable therewith in the presence of a rubber-like polymer (a), a polymer (A-2) obtained by polymerizing the monomer component (b), or a mixture of the resin (A-1) and the polymer (A-2); and (B) 40 to 2 wt % of a halogen type flame-retardant which comprises a mixture of compounds represented by the following formula (1), the mixture comprising 5 to 60 mol % of a compound (B-1) having epoxy groups at both terminals of the molecular chain, 15 to 70 mol % of a compound (B-2) having epoxy group at one terminal alone and 5 to 80 mol % of a compound (B-3) having no epoxy group at both terminals: â€ƒwherein X is a halogen atom such as bromine or chlorine; n is an integer of 0 or more; i is an integer of 1 to 4; R is a same or different groups of â€”C(CH3)2â€” or â€”CH2â€”; and R1 and R2 are a same or different groups selected from the group consisting of the following formulae (2) and (3): â€ƒwherein â€”Z is a group produced by reacting with a phenolic compound, a carboxylic acid compound, an amine-based compound or an alcoholic compound which are a reagent capable of ring-opening addition reaction with the epoxy groups.