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METHOD FOR PREPARING IMPACT RESISTANT STYRENE-BASED RESIN HAVING EXCELLENT RIGIDITY AND ENVIRONMENTAL STRESS CRACK RESISTANCE
METHOD FOR PREPARING IMPACT RESISTANT STYRENE-BASED RESIN HAVING EXCELLENT RIGIDITY AND ENVIRONMENTAL STRESS CRACK RESISTANCE
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机译:具有优异的刚度和环境应力开裂性的耐冲击苯乙烯基树脂的制备方法
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摘要
PURPOSE: Provided is a continuous method for preparing an impact resistant styrene-based resin having excellent rigidity, environmental stress crack resistance, extrusion processability and vacuum moldability. CONSTITUTION: The method for preparing an impact resistant styrene-based resin comprises the steps of: (1) forming a mixed solution containing a butadiene-based rubbery polymer and a styrene monomer; (2) adding a molecular weight modifier to the mixed solution and initiating graft copolymerization; and (3) further introducing a styrene monomer and polybutene or polyorganosiloxane after the mixed solution obtained from step (2) experiences a phase transition and carrying out graft copolymerization.
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