公开(公告)号：US20150258530A1

公开(公告)日：2015-09-17

申请号：US14723634

申请日：2015-05-28

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Toshikatsu UMABA ,  Hiromitsu SHIMIZU ,  Kenji MORI ,  Keiichi TABATA

IPC: B01J23/00 ,  B01J35/00 ,  B01J21/08 ,  B01J37/00 ,  B01J21/06 ,  B01J21/12 ,  B01J35/02 ,  B01J37/02 ,  C08G63/183 ,  B01J21/04

CPC classification number: B01J23/007 ,  B01J21/04 ,  B01J21/063 ,  B01J21/066 ,  B01J21/08 ,  B01J21/12 ,  B01J21/14 ,  B01J35/0006 ,  B01J35/026 ,  B01J37/0009 ,  B01J37/0244 ,  C08G63/183 ,  C08G63/85

Abstract: The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on their surfaces either a coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base, or an inner coat layer of an oxide of at least one element selected from silicon, aluminum and zirconium or a composite oxide of at least two elements selected from silicon, aluminum and zirconium in an amount of from 1 to 20 parts by weight per 100 parts by weight of the solid base and an outer coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base, and wherein the solid base is hydrotalcite.

Abstract translation: 本发明提供了一种通过酯化反应或二羧酸或其形成酯的衍生物与二醇之间的酯交换反应制备聚酯的缩聚催化剂，其中缩聚催化剂包括固体碱的颗粒，其表面具有涂层 相对于每100重量份的固体碱，TiO 2计，0.1至50重量份的钛酸，或选自硅，铝和锆的至少一种元素的氧化物的内涂层或复合材料 选自硅，铝和锆中的至少两种元素的氧化物，其量为每100重量份固体碱为1至20重量份，钛酸外涂层为0.1至50重量份 （重量），相对于100重量份的固体碱，TiO 2计，固体碱为水滑石。