Abstract: The present application provides a catalyst component for alkene polymerization. The catalyst component contains: (a) a group 4 transition metal or rare earth metal, (b) a rigid non-cyclopentadienyl ligand with a tricyclic backbone composed of three ortho-fused 6-membered rings in a linear arrangement (as is the case in xanthene), with or without additional fused rings; the tricyclic backbone contains at least one donor atom within the central ring (as is the case for xanthene, oxanthrene, or acridan); furthermore, donor atoms/groups or aryl rings are attached directly (i.e. via the donor atom in the case of donor groups) to both of the bondable carbon atoms adjacent to at least one of the donor atoms within the central ring (e.g.

Abstract: An apparatus configured for attachment to an auger machine and a drain pipe that encloses an auger and its cable to prevent particulate matter, liquids and other materials of the drainpipe from splattering the environment outside of the drainpipe. The apparatus can include a camera tube for receiving a camera that is inserted into the apparatus and into the drainpipe for visual inspection of the drainpipe. The apparatus can include a water inlet that receives a pressurized source of water for rinsing the camera and its cable while it is retracted, for removing any attached particulate matter after the drain has been unclogged. Furthermore, the auger and its cable are also rinsed as it is being retracted from the drainpipe. An oil applicator positioned upstream of water inlet physically removes any left over particulate matter attached to the auger cable and oils the cable as it retracts into the auger machine.

Abstract: The present application provides a catalyst component for alkene polymerization. The catalyst component contains: (a) a group 4 transition metal or rare earth metal, (b) a rigid non-cyclopentadienyl ligand with a tricyclic backbone composed of three ortho-fused 6-membered rings in a linear arrangement (as is the case in xanthene), with or without additional fused rings; the tricyclic backbone contains at least one donor atom within the central ring (as is the case for xanthene, oxanthrene, or acridan); furthermore, donor atoms/groups or aryl rings are attached directly (i.e. via the donor atom in the case of donor groups) to both of the bondable carbon atoms adjacent to at least one of the donor atoms within the central ring (e.g.