WEATHER-RESISTANT AND IMPACT-RESISTANT RESIN COMPOSITION

• Main Author: KOKUBO TAKASHI
• Format: Patent
• Language: English
• Published: 26.06.1985
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE:A composition having improved impact resistance and weather resistance, consisting of an ABS resin wherein acrylic acid ester rubber particles are dispersed as particles having large particle diameter and an ABS resin wherein conjugated diene rubber particles are dispersed as particles having small particle diameter. CONSTITUTION:A composition consisting of (A) a graft copolymer wherein acrylic acid ester rubber particles having 0.1-0.45mum weight-average particle diameter are dispersed into a continuous phase comprising 10-90wt% aromatic vinyl monomer residue, 10-40wt% alpha,beta-unsaturated nitrile residue, and 0-80wt% methyl metacrylate, (B) a graft copolymer wherein conjugated rubber particles having 0.5-5mum weight-average particle diameters are dispersed into a continuous phase having the same components as that of the component A, and, if necessary, (C) a copolymer having the same continuous phase as that of the component A, having 5-40wt% total amounts of the whole rubber particles, wherein the whole rubber particles have 60-97wt% acrylic acid ester rubber particles.