2results about How to "Reduce productivity" patented technology

An example of a roller cleaning device according to the present invention may include: a cleaning head comprising: a cleaning body having a foreign matter suction channel, a cutter mounted on the cleaning body to be able to contact the surface of the roller, and a clamp configured to fix a wiping element to the cleaning body; and a foreign matter suction section connected to the cleaning body to be in fluid communication with the foreign matter suction channel, and configured to suction foreign matter present on the surface of the roller through the foreign matter suction channel.

This invention relates to an oligomerization method, preferably for the tetramerization of ethylene into 1-octene, the method comprising the step of injecting at least four compounds into an oligomerization reactor: - a chromium-based metal precursor; - a heteroatom ligand; - a supported methylaluminoxane on an inorganic support; - an additive in the form of an aluminum-based compound; wherein the chromium-based metal precursor and the heteroatom ligand are never in contact with the supported methylaluminoxane on the inorganic support in the absence of the additive in the form of an aluminum-based compound.