发明名称 PROCESS FOR PRODUCING POLYCARBONATE
摘要 A subject for the invention is to provide a polycarbonate having excellent mechanical strength, heat resistance, a low refractive index, a large Abbe number, reduced birefringence, and excellent transparency. The invention relates to a polycarbonate characterized by being obtained by subjecting one or more dihydroxy compounds including a dihydroxy compound having at least one linking group —CH2—O— in the molecule thereof to melt polycondensation with a carbonic acid diester, and by having a reduced viscosity of from 0.40 dL/g to 1.70 dL/g and a formic acid content lower than 5 ppm by weight.
申请公布号 US2011034646(A1) 申请公布日期 2011.02.10
申请号 US20080808058 申请日期 2008.12.10
申请人 FUJI MICHIAKI;NAMIKI SHINGO;YAMAMOTO MASAKI 发明人 FUJI MICHIAKI;NAMIKI SHINGO;YAMAMOTO MASAKI
分类号 C08F2/01;C08G63/16 主分类号 C08F2/01
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