STYRENE RESIN AND RESIN COMPOSITION COMPRISING THE SAME

摘要

THE PRESENT INVENTION RELATES TO A STYRENE RESIN HAVING EXCELLENT MOLDABILITY OR FORMABILITY AND EXCELLENT PHYSICAL PROPERTIES AND IS SUITED FOR RECYCLING USE; AND A THERMOPLASTIC POLYCARBONATE RESIN COMPOSITION WITH THE STYRENE RESIN. MORE SPECIFICALLY, THE PRESENT INVENTION PERTAINS TO A STYRENE RESIN HAVING EXCELLENT MOLDABILITY OR FORMABILITY, DOES NOT UNDERGO HEAT DETERIORATION EASILY, AND HAS IMPROVED HEAT RESISTANCE AND IMPACT STRENGTH; AND A THERMOPLASTIC POLYCARBONATE RESIN COMPOSITION WITH THE STYRENE RESIN. THE STYRENE RESIN ACCORDING TO THE PRESENT INVENTION COMPRISES 50 TO 90 WT.% OF A CONTINUOUS PHASE COMPONENT (S) COMPOSED OF A COPOLYMER OF A STYRENE MONOMER, AN UNSATURATED NITRILE MONOMER AND THE LIKE; AND 10 TO 50 WT.% OF A DISPERSED PHASE COMPONENT COMPOSED OF A RUBBERY POLYMER COMPONENT ON WHICH SAID MONOMERS HAVE BEEN GRAFTED AND WHICH HAS OCCLUDED SAID COPOLYMER. IN THE STYRENE RESIN, NO TRIPLE CHAIN UNIT AAA IS DETECTED FROM THE UNSATURATED NITRILE MONOMER COMPONENT (A) IN THE CONTINUOUS PHASE COMPONENT (S) AND A DOUBLE CHAIN UNIT AA AMOUNTS TO 3% OR LESS BASED ON THE WHOLE UNITS (A) DETECTED; THE CONTINUOUS PHASE COMPONENT (S) HAS A REDUCED VISCOSITY (nSP/C) OF 0.2 TO 0.85 DL/G; AND SPECIFIED IMPURITIES ARE NOT CONTAINED IN AN AMOUNT EXCEEDING A PREDETERMINED AMOUNT.