Use of catalysts for the preparation of aliphatic...

Details Use of catalysts for the preparation of aliphatic... Use of catalysts for the preparation of aliphatic...

C - Chemistry, Metallurgy

08

G

C08G 64/30 (2006.01) C08F 4/52 (2006.01) C08G 64/16 (2006.01) C08G 64/20 (2006.01)

Patent

CA 2411930

The present invention relates to the use of rare earth metals and/or compounds thereof, metals of sub-group III of the Period Table of the elements and/or compounds thereof as catalysts for the preparation of aliphatic oligocarbonate polyols by transesterification of organic carbonates with aliphatic polyols.

La présente invention a pour objet l'utilisation de métaux du groupe des terres rares et/ou de composés de ces derniers, métaux du sous-groupe III du Tableau périodique des éléments et/ou de composés de ces derniers comme catalyseurs pour la préparation de polyols d'oligocarbonates aliphatiques par transestérification de carbonates organiques avec des polyols aliphatiques.

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