发明名称 |
CATALYST FOR POLYESTER PRODUCTION, PROCESS FOR PRODUCING POLYESTER USING THE CATALYST, POLYESTER OBTAINED BY THE PROCESS, AND USES OF THE POLYESTER |
摘要 |
PURPOSE: A catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst is provided. CONSTITUTION: A catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. The polyester is obtained by polycondensing an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof in the presence of a catalyst for polyester production which comprises a polycondensation catalyst component comprising a solid titanium compound and a co-catalyst component comprising a magnesium compound. This polyester has a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a weight ratio (Mg/Ti) of magnesium to titanium of not less than 0.01. |
申请公布号 |
KR20000048320(A) |
申请公布日期 |
2000.07.25 |
申请号 |
KR19990060152 |
申请日期 |
1999.12.22 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
OHMATSUZAWA TAKESHI;EHARA FUJITO;HORI HIDESHI;TOYOTA KAZUO;FUKUTANI KENZABUROU;IMUTA JUNICHI;SHIMIZU AKIYOSHI;ONOGI TAKAYUKI;OHMATSUZAWA TAKESHI;NODA SEIJI;SAKAI MASAYUKI;HIRAOKA SHOJI;NAKAMACHI KOJI;TSUGAWA MICHIO;MIYAZOE SATORU |
分类号 |
C08G63/85;C08G63/00 |
主分类号 |
C08G63/85 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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