US3576762A - Catalysts of modified basic trivalent metal acetates - Google Patents Connect public, paid and private patent data with Catalysts of modified basic trivalent metal acetates Info Publication number US3576762A US3576762A US3576762DA US3576762A US 3576762 A US3576762 A US 3576762A US 3576762D A US3576762D A US 3576762DA US 3576762 A US3576762 A US 3576762A Authority US Grant status Grant Patent type Prior art keywords example catalyst process polymer water Prior art date 1965-02-19 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Francoise Maguet-Martin Maseh Osgan Philippe Teyssie Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) IFP Energies Nouvelles Original Assignee IFP Energies Nouvelles Priority date (The priority date is an assumption and is not a legal conclusion. Any Technics Kn6000 Keyboard Styleseat. THERE ARE PROVIDED POLYMERIZATION CATALYSTS ESPECIALLY USEFUL FOR THE POLYMERIZATION OF CYCLIC ETHERS. THESE CATALYSTS HAVE THE FORMULA M6+2NO7+3N(OH)2A2 WHEREIN A IS A CARBOXYLIC ACID MONOVALENT RADICAL, M IS A TRIVALENT METAL AND N IS A NUMBER COMPRISED BETWEEN 0 AND 10. THESE CATALYSTS ARE PRODUCED BY HYDROLYZING A BASIC TRIVALENT METAL CARBOXYLATE, E.G.

BASIC IRON (III) ACETATE, AND THEN DEHYDRATING THE RESULTANT HYDROLYZED CARBOXYLATE. ALUMINUM ALCOHOLATE OR PHENATE MAY BE ADDED THERETO. Download Free Sonny Stitt Discography Rar Software For Mac. United States Patent Olfice 3,576,762 Patented Apr. 27, 1971 Int. Cos 23/14 US. 252431 16 Claims ABSTRACT OF THE DISCLOSURE There are provided polymerization catalysts especially useful for the polymerization of cyclic ethers. These catalysts have the formula M O,,(OH) A wherein A is a carboxylic acid monovalent radical, M is a trivalent metal and n is a number comprised between and 10.