| 摘要 |
PURPOSE:To provide the titled compsn. having excellent glass, impact resistance and flame retardance, by adding a halogen-contg. flame retarder and a flame- retardant aid to a specified impact-resistant PS resin. CONSTITUTION:A resin (a) having a swelling index (represented by A/B, wherein A is the weight of benzene-insolubles obtd. by dissolving 1g of the resin in 50ml of benzene, centrifuging the soln. under conditions of 10,000rpmX60min, removing the supernatant liquid, adding 50ml of benzene to the residue and centrifuging the mixture and B is the weight of said insolubles after dring) of 15-25 is obtd. by polymerizing 75-98pts.wt. styrene in the presence of 2-25pts.wt. rubbery diene polymer composed of high cis-polybutadiene having a cis-1,4 structure unit content of 80% or above. 3-30pts.wt. halogen-contg. flame retarder (b) (e.g., deca-bromodiphenyl ether) and 2-20pts.wt. flame- retardant acid (c) (e.g., Sb2O3) are added to 100pts.wt. component (a).
|
