公开(公告)号：US20050227861A1

公开(公告)日：2005-10-13

申请号：US11091721

申请日：2005-03-28

Applicant: Yi-Feng Wang ,  Peter Phelps

Inventor： Yi-Feng Wang ,  Peter Phelps

IPC: B01J31/02 ,  B01J31/18 ,  B01J31/22 ,  C07F7/00 ,  C08G63/82 ,  C08G63/85 ,  C08G63/87 ,  B01J31/00 ,  C08F20/00

CPC classification number: B01J31/2239 ,  B01J31/0214 ,  B01J31/0228 ,  B01J31/223 ,  B01J31/2243 ,  B01J2231/14 ,  B01J2531/46 ,  C07F7/003 ,  C08G63/82 ,  C08G63/85 ,  C08G63/87 ,  Y10T428/31786

Abstract: This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocyclic oligoesters and the depolymerization of polyesters). Multi-component catalytic systems using aryl titanates allow increased versatility in applications such as liquid molding.

公开(公告)号：US20010053866A1

公开(公告)日：2001-12-20

申请号：US09827655

申请日：2001-04-06

Inventor： Uwe Denninger ,  Jorg Hofmann ,  Pramod Gupta

IPC: C07C043/13

CPC classification number: C08G65/2654 ,  B01J31/0211 ,  B01J31/0227 ,  B01J31/0228 ,  B01J31/0252 ,  B01J31/0255 ,  B01J31/0257 ,  B01J2231/48 ,  C07F5/069

Abstract: The present invention relates to a process for the preparation of polyether polyols by the reaction of alkylene oxides and compounds containing active hydrogens, in the presence of specific Lewis acid metal compounds as catalysts, novel bis(perfluoroalkylsulfonic acid) compounds of Group 13 of the Periodic Table of the Elements, and to a process for the preparation thereof and the use thereof as catalysts for ring-opening polymerization of cyclic ethers.

Abstract translation: 本发明涉及在特定的路易斯酸金属化合物作为催化剂存在下，通过环氧烷和含有活性氢的化合物的反应来制备聚醚多元醇的方法，该化合物是周期的第13族的新型双（全氟烷基磺酸）化合物 表格，以及其制备方法及其作为环醚开环聚合的催化剂的用途。

公开(公告)号：US06248899B1

公开(公告)日：2001-06-19

申请号：US09331286

申请日：1999-08-09

Applicant: Benoît Pugin ,  Benoît Dubuis ,  Adrian Müller

Inventor： Benoît Pugin ,  Benoît Dubuis ,  Adrian Müller

IPC: C07D24916

CPC classification number: B01J31/122 ,  B01J21/08 ,  B01J31/0228 ,  B01J31/0274 ,  B01J2231/40 ,  B01J2231/49 ,  C07C67/03 ,  C07D249/20 ,  C25B9/00 ,  C07C69/732

Abstract: A description is given of a process for the transesterification of carboxylic esters, characterized in that the catalyst used is a tin(IV) compound comprising a radical of the formula bound to an inorganic support, where L is an at least divalent radical and at least one of the free valences of the Si in formula (I) is bound to the inorganic support, novel tin(IV) compounds and their preparation.

Abstract translation: 给出了羧酸酯的酯交换方法的描述，其特征在于所用的催化剂是包含与无机载体结合的基团的锡（IV）化合物，其中L是至少二价基团和至少一个 式（I）中Si的游离价与无机载体，新型锡（Ⅳ）化合物及其制备相结合。

公开(公告)号：US4987244A

公开(公告)日：1991-01-22

申请号：US405700

申请日：1989-09-11

Applicant: James D. Nichols ,  John B. Dickenson

Inventor： James D. Nichols ,  John B. Dickenson

IPC: B01J31/02 ,  B01J31/04 ,  B01J31/12 ,  C07F7/22 ,  C08G18/24

CPC classification number: C08G18/242 ,  B01J31/0228 ,  B01J31/04 ,  B01J31/122 ,  C07F7/2244 ,  C07F7/2268 ,  B01J2540/10

Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotins of the formulaR.sub.2 Sn[X--R.sup.1 --OH].sub.2whereR is a C.sub.1 -C.sub.8 alkyl or an aryl group,R.sup.1 is a C.sub.2 -C.sub.9 divalent hydrocarbyl group which may contain a hydroxyl substituent, andX is a linking group which may be --S-- or --O.sub.2 C--.

Abstract translation: 可用作多异氰酸酯或部分封端的多异氰酸酯与含羟基化合物的反应的催化剂是式R 2 Sn [X-R 1 -OH] 2的有机锡，其中R是C 1 -C 8烷基或芳基，R 1是 可以含有羟基取代基的C 2 -C 9二价烃基，X是可以是-S-或-O2C-的连接基团。

公开(公告)号：US2440729A

公开(公告)日：1948-05-04

申请号：US52817944

申请日：1944-03-25

Applicant: DU PONT

Inventor： KERR SIGNAIGO FRANK

IPC: B01J31/02 ,  C07H23/00

CPC classification number: B01J31/0228 ,  B01J31/0202 ,  B01J31/0217 ,  B01J2231/32 ,  C07H23/00