Patent ID: 9126877
Filing Date: 2015-09-08
Classification: C07C,C08F

Abstract:
1. A method of preparing polyisobutene polymer from a renewable hydrocarbon source, the method comprising: obtaining an alcohol mixture comprising one or more butanols from the renewable hydrocarbon source; and contacting the alcohol mixture with a dehydration catalyst to form an olefin mixture comprising one or more linear butenes and isobutene; contacting the olefin mixture with an adsorbent microporous material having an effective pore opening of 5Å to 5.4Å for about 6 to about 24 hours in an enclosed container to selective adsorb the linear butenes to the microporous material; isolating the isobutene from the micro porous a material and adsorbed linear butenes; and polymerizing the isobutene to obtain the polyisobutene polymer.