Process for the preparation of organotitanium compounds and thei

Details Process for the preparation of organotitanium compounds and thei Process for the preparation of organotitanium compounds and thei

1994-08-29

1996-05-28

Gibson, Sharon

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502156, B01J 3100

Patent

active

055211364

ABSTRACT:
A process for the preparation of organotitanium compounds and to their use as crosslinking catalysts in cathodically depositable electro-deposition coating materials is described. The organotitanium compounds are obtained by first carrying out partial transesterification of tetraalkyl orthotitanates with alkylene glycols which are capable of forming chelates, and then completing the transesterification of the resulting intermediate with hydroxyl compounds based on modified mono- and/or diepoxide compounds.
Cathodically depositable electrodeposition coating materials which contain the organotitanium compounds prepared in accordance with the invention provide, after curing in a temperature range from 160.degree. to 180.degree. C., coating films having excellent stability and the like properties, without the need to use additional crosslinking catalysts based on heavy metals such as lead or tin.

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