The world's major PE manufacturers have been involved in the production of metallocene PE (mPE), such as Dow Chemical, Eastman, Asahi Kasei, Atofina, Chevron - Phillips and other companies.
Japan Asahi Kasei Chemical purchased Dow Chemical's metallocene catalyst patent Insite, the use of slurry production process to produce metallocene high-density polyethylene (mHDPE), grade Creolex. As a result of superior performance, mPE1995 years into the development of industrial, the global consumption of mPE resin doubled every year. It is estimated that by 2010, the global mPE production capacity will reach 17 million tons, of which: mLLDPE 7 million tons, mHDPE 600 million tons.
E catalyst has been developed to the third generation, Japan's Mitsui Chemicals and Dow Chemical to develop a new generation of metallocene (Post-metallocene) catalyst. Unlike conventional metallocene and ZN catalysts, the catalyst allows copolymerization of polar monomers such as methyl methacrylate, vinyl acetate and the like with olefins, and can be used to develop new materials with adhesiveness, oil resistance and gas barrier properties Polyolefin resin.
China attaches great importance to PE production technology, PE production technology innovation has been included in the national technology innovation project. For domestic PE production to gas-based process-based, product grade switching difficulties, the transition material asked more domestic PE production enterprises have carried out to the existing polyethylene production technology as the basis, the gas phase of polyethylene condensation, super-condensation process and silt Slurry polyethylene outer loop process development work, and achieved tangible results.
China Uuipol most of the production equipment has been using domestic condensation technology has been expanded, the output has exceeded the original design capacity of 120% to 200%.
These polyethylene can also be recycled through polyethylene densifier and we can reuse the waste polyethylene to do other products.