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The following patent record is from the CAplusSM
CAPLUS COPYRIGHT 2011 ACS
||Process for the preparation of c5 and/or c6 olefins
||Chewter, Leslie Andrew; Verhaak, Michiel Johannes Franciscus Maria; Van Westrenen, Jeroen
||Shell Internationale Research Maatschappij B.V., Neth.
||PCT Int. Appl., 24 pp. CODEN: PIXXD2
Process for the preparation of C5 and/or C6 olefins comprises contacting the lower olefin with the oxygenate, in a molar ratio of oxygen-bonded alkyl group to lower olefin of at least 1:1 in the presence of a MTT-type zeolite.
Please note: In this example, CAS indexed the PCT patent publication WO 2007/135053 as the first published record of the invention. The PCT publication lists Shell Internationale, Hague, Netherlands as the patent assignee. The patent assignee for the U.S. application and granted patent (US 8049054) is Shell Oil Company, Houston, Texas.
View the full-text U.S. patent from USPTO.