Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid catalyst prior to use. Resins...http://www.google.com/patents/US6608155?utm_source=gb-gplus-sharePatent US6608155 - Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins
