OPTICAL POLYCARBONATE RESIN MOLDING MATERIAL AND OPTICAL DISK

摘要

PROBLEM TO BE SOLVED: To obtain a polycarbonate resin molding material (pellet) capable of providing a high-density disk substrate having extremely slight occurrence of silver steak and high reliability. SOLUTION: This optical polycarbonate resin molding material comprising the polycarbonate resin is characterized in that the resin has 13 mg to 26 mg average value of pellet weight and <=2.2 mg standard deviation of weight.