Alkenylsuccinic anhydrides formed from oligomers of c4- to...

Details Alkenylsuccinic anhydrides formed from oligomers of c4- to... Alkenylsuccinic anhydrides formed from oligomers of c4- to...

C - Chemistry, Metallurgy

07

C

C07C 57/02 (2006.01) C07C 57/13 (2006.01) D21H 17/16 (2006.01)

Patent

CA 2628013

Alkenylsuccinic anhydrides obtainable by reacting maleic anhydride with mixtures of oligomers having at least 12 carbon atoms, which are obtainable by oligomerizing a hydrocarbon mixture which contains at least two olefins having from 4 to 8 carbon atoms over a catalyst which comprises a transition metal, processes for preparing the alkenyl~succinic anhydrides and to their use as sizing agents in the production of paper, paperboard and cardboard.

L~invention concerne un anhydride de l~acide acétylsalicylique obtenu par transformation de l~anhydride de l~acide maléique avec un mélange d~oligomères d~au moins 12 atomes de carbone, obtenus par oligomérisation d~un mélange d~hydrocarbures comprenant au moins deux oléfines contenant de 4 à 8 atomes de carbone, avec un catalyseur comprenant un métal de transition, un procédé de fabrication de l~anhydride de l~acide acétylsalicylique et son utilisation en tant qu'agent collant dans la fabrication de papier et de carton.

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