Fluorinated solid acids as catalysts for the preparation of...

C - Chemistry – Metallurgy – 07 – C

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C07C 2/04 (2006.01) C07C 2/06 (2006.01) C07C 2/26 (2006.01) C07C 2/28 (2006.01) C08F 2/00 (2006.01) C08F 10/00 (2006.01) C08F 12/04 (2006.01) C08F 240/00 (2006.01)

Patent

CA 2277297

Fluorinated solid acids and supported fluorinated solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomoer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the fluorinated solid acid catalyst and/or supported fluorinated solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5 ~C to 170 ~C can be prepared. These catalysts offer advantages over the traditional Friedel- Crafts polymerization catalysts since the acid sites are an integral part of the solid. The fluorinated solid acid catalysts and supported fluorinated solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.

On utilise des acides solides fluorés et des acides solides fluorés sur support en tant que catalyseurs servant à la polymérisation d'un flux d'alimentation contenant au moins un monomère pur, ou un monomère C5 ou C9, afin de produire des résines d'hydrocarbure. On peut enlever du catalyseur acide solide fluoré et/ou du catalyseur acide solide fluoré sur support, l'eau associée librement à celui-ci, avant utilisation du catalyseur. On peut préparer des résines à points de ramollissement (déterminés par la méthode bille et anneau) se situant dans la plage comprise entre environ 5 et environ 170 ·C. Ces catalyseurs présentent des avantages sur les catalyseurs classiques de polymérisation de Friedel-Crafts, en ce que leurs sites acides font partie intégrante du solide. Ces catalyseurs acides solides fluorés et ces catalyseurs acides solides fluorés sur support sont relativement non dangereux et réutilisables, et leur utilisation permet de supprimer ou tout au moins de diminuer la contamination des produits résineux résultants par des restes acides ou des sous-produits.

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