Process for the formation of urethane via transcarbamation

Details Process for the formation of urethane via transcarbamation Process for the formation of urethane via transcarbamation

2006-02-14

2006-02-14

Lorengo, J. A. (Department: 1755)

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

Catalyst or precursor therefor

Organic compound containing

C560S024000, C560S115000, C560S157000, C524S589000

Reexamination Certificate

active

06998364

ABSTRACT:
The invention concerns a novel catalyst for forming urethanes. Said catalyst is characterized by the general formula: MY3−q[Z]q, wherein: Z is the radical corresponding to the anion of a super acid whereof the Hamett constant is at least equal to 13 and advantageously more than 13, M representing a trivalent metal, preferably known for forming Lewis acids; Y is an anion or a monovalent anionic function; and q is an integer selected advantageously between 1 and 3, inclusively. The invention is applicable to paint.

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