发明名称 |
POLYCONDENSATION CATALYST FOR THE PRODUCTION OF POLYESTERS, AND POLYESTER PRODUCTION METHOD USING SAME |
摘要 |
<p>POLYCONDENSATION CATALYST FOR PRODUCING POLYESTER AND METHOD FOR PRODUCING POLYESTER USING THE SAMEThe invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, the polycondensation catalyst being obtained by hydrolyzing a water soluble titanium compound in the absence of a water soluble alkali in an aqueous slurry in which particles of a solid base are dispersed thereby to form on the surface of the particles of the solid base a coat layer of titanic acid in a content of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base. The invention further provides a method for producing such a polycondensation catalyst, and polyester obtained using such a polycondensation catalyst. No Figure</p> |
申请公布号 |
SG179134(A1) |
申请公布日期 |
2012.04.27 |
申请号 |
SG20120017943 |
申请日期 |
2010.09.10 |
申请人 |
SAKAI CHEMICAL INDUSTRY CO., LTD. |
发明人 |
TABATA KEIICHI;KAMON AKIHIRO;NAITO JUN;IKEGAWA KEIICHI |
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