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Perspectives and limitations of metallocenes in the polyolefin industry

Abstract:

This work reports the evolution, perspectives and limitations of the metallocene catalyst technology in the polyolefin industry. In the last decade, a great deal of R&D efforts have been made to develop metallocene catalysts, which is evidenced by the high patent production in the area. Additionally, the capability of the metallocene catalyst technology for the production of polymers with excellent final properties has been commercially proved. These polymers are increasingly becoming a threat for the conventional polyolefins and the flexible PVC. It has been stated that there are a few technical barriers for adapting metallocene technology in polyolefins. Some critical features for the future success of the metallocene technology are: cost reduction of catalysts, improvements in product processability, and solution of industrial property problems which make the technology licensing difficult.