Diolefin/hydroxyaryl condensates and catalyst therefor

Details Diolefin/hydroxyaryl condensates and catalyst therefor Diolefin/hydroxyaryl condensates and catalyst therefor

C - Chemistry, Metallurgy

07

C

C07C 43/174 (2006.01) B01J 21/02 (2006.01) B01J 21/08 (2006.01) B01J 21/12 (2006.01) B01J 21/14 (2006.01) B01J 31/02 (2006.01) C07C 2/08 (2006.01) C07C 2/14 (2006.01) C07C 37/11 (2006.01) C07C 37/14 (2006.01) C07C 41/06 (2006.01) C07C 43/243 (2006.01) C08L 61/06 (2006.01) C08L 61/10 (2006.01)

Patent

CA 2381897

A catalyst composition comprising trifluoromethanesulfonic acid (also referred to as triflic acid) and a sufficient quantity of a substance (also referred to as a retarder) to decrease but not eliminate the catalytic activity of the acid is disclosed. Also disclosed, is a method and composition for condensing a hydroxyaryl with a diene by use of the catalyst composition. The method is capable of producing condensates having: a mole ratio of 1 mole of the diene to one mole of the hydroxyaryl; one mole of diene to two moles of the hydroxyaryl as well as higher molecular weight products such as resins by changes in temperature, time of reaction, type and quantity of retarder and other variables.

On décrit une composition de catalyseur comprenant de l'acide trifluorométhanesulfonique (également appelé acide triflique) et une quantité suffisante d'une substance (qu'on appelle aussi un retardateur) qui permet de réduire sans cependant éliminer l'activité catalytique de l'acide. On décrit également un procédé et une composition utile pour condenser un hydroxyaryle avec un diène au moyen de la composition de catalyseur. Le procédé permet de produire des condensats ayant un rapport molaire de 1 mole de diène pour une mole d'hydroxyaryle; d'une mole de diène pour deux moles d'hydroxyaryle ainsi que des produits à poids moléculaires plus élevés tels que des résines, lorsqu'on change la température, le temps de réaction, le type et la quantité du retardateur et d'autres variables.

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