Basic properties of propylene based plastomers synthesized by post-metallocene catalyst were studied as compared with isotactic polypropylene and block polypropylene.

Progress in studies on metallocene catalyst with organic support;

Bench scale test development of loading metallocene catalyst;

Application of metallocene catalyst in ethylene propylene rubber;

Three metallocene catalysts with different sensitivities to hydrogen were chosen to simulate their dynamic behaviors in the fluidized bed reactor.

The copolymerization of cycloolefin and α-olefin,and the structure of the obtained polymer are significantly affected by the structure and symmetry of metallocene catalysts,electronic effect and steric hindrance of ligands.

Metallocene catalysts technique is especially cared about because it can precisely control the malecular of polymer and can'custom-tailar' polymers of various structions,according to the user's requirements.

For the purpose of using metallocene in the presenting industrial appratus, supporting the catalyst and the cocatalyst on a support was the key technology.

Branched polyethylene has been prepared by using asymmetric metallocene and MAO catalytic system.

This paper has briefly reviewed the structure and characteristics of metallocene,and its application in production of polyolefine.

According to the composite and structure of the compound, three kinds of metallocene catalyst were divided:homogeneous catalyst, monocomponent cationic catalyst and load catalyst, and every kind of catalyst had its applied field.

The applications of metallocene catalyst to polyolcfine offer a possibility for development of the high performance polyolefine products and improvement of the market competitive ability, in this paper, the suggestions for developing metallocene-based polyolefine in China are put forward.