Abstract: Embodiments are directed towards a use of a supported biphenylphenol polymerization catalyst to make a polymer via a slurry-phase polymerization process, where the supported biphenylphenol polymerization catalyst is made from a biphenylphenol polymerization precatalyst of Formula I.

Abstract: An improved artist and display easel that is secured from the top by use of a crossbar that interlocks with the easel to firmly hold a standard canvas or display up to twenty-four inches in height. The easel is preferably made of a flexible material so that it can be repeatedly bent down the centerline of weakness. The centerline fold creates tension on both side panels causing outward pressure. The top crossbar holds the easel body securely in place by interlocking notches. The top crossbar also holds the top of a display or canvas securely to the easel body. There are seven different height settings that correspond to standard canvas sizes. In addition, a bottom crossbar can be interlocked to the easel body to raise the base height of a display or canvas. The use of flexible material gives the easel portability, low cost and disposability.