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公开(公告)号：EP3632954A1
公开(公告)日：2020-04-08
申请号：EP18805324.3
申请日：2018-05-17
发明人： OZAKI, Mitsutaka , HASHIMOTO, Miwa , SUTO, Takeru
IPC分类号： C08G64/04
摘要： The purpose of the present invention is to provide an aromatic polycarbonate oligomer solid with substantially reduced low-molecular-weight components, no or a substantially reduced amount of chlorine-containing compounds, high loose bulk density, and ease of handling. The aromatic polycarbonate oligomer solid contains a repeating unit represented by formula (1), has a weight average molecular weight of 500 to10,000, low-molecular-weight components less than or equal to 5.0 area% measured with high-speed liquid chromatography, and a loose bulk density of greater than or equal to 0.22 g/cm 3 .
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公开(公告)号：EP3388467A1
公开(公告)日：2018-10-17
申请号：EP16872846.7
申请日：2016-11-28
IPC分类号： C08G64/06
CPC分类号： C08G64/06
摘要： The purpose of the present invention is to provide an aromatic polycarbonate oligomer solid which has a markedly reduced low molecular weight component, has no or markedly reduced chlorine-containing compounds, has a high loose bulk density and is easy to handle. This purpose is met by an aromatic polycarbonate oligomer solid which includes a repeating unit represented by general formula (1), has a weight average molecular weight of 500-10000, has a low molecular weight component of less than or equal to 5.0 area% in high performance liquid chromatography measurement, and has a loose bulk density of greater than or equal to 0.21 g/cm 3 .
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公开(公告)号：EP3632957A1
公开(公告)日：2020-04-08
申请号：EP18806063.6
申请日：2018-05-17
发明人： OZAKI, Mitsutaka , HASHIMOTO, Miwa , SUTO, Takeru , KANO, Ryoto
IPC分类号： C08G64/06
摘要： The purpose of the present invention is to provide an aromatic polycarbonate oligomer solid with substantially reduced low-molecular-weight components, no or a substantially reduced amount of chlorine-containing compounds, high loose bulk density, and ease of handling. The aromatic polycarbonate oligomer solid contains a repeating unit represented by formula (1) and a repeating unit represented by formula (2), has a weight average molecular weight of 500 to 10,000, low-molecular-weight components less than or equal to 5.0 area% measured with high-speed liquid chromatography, and a loose bulk density of greater than or equal to 0.25 g/cm 3 . In general formula (1), R 1 and R 2 are independently a hydrogen atom or an alkyl group with 1 to 4 carbon atoms. In general formula (2), R 3 and R 4 are independently a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, and R 5 and R 6 are independently a hydrogen atom or an alkyl group with 1 to 12 carbon atoms.
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