1 The metallocene is summarized as strata, lithology, structure, and especially brittle - ductile shear zone.

2 The researches and developments on metallocene cycloolefine copolymer just step into the initial phase worldwide.

3 The molecular long chain branch structure of metallocene polyethylene has great effects on it's rheological behavior, long chain branch can significantly enhance melt elasticity and shear thinning.

4 Metallocene catalyst is a kind of catalyst with single-site. It can be used to devel-ope high function polyolefine and new polyolefine.

5 With metallocene elastomer as toughening resin,[www.Sentencedict.com] Polypropylene is modified in blending toughening and produced into blown film by water-cooled downward extrusion method.

6 Metallocene catalysts technique provides the possibility for developing more polyolefin resins of high performance.

7 The structure of the metallocene had an important influence on the maximum activity of the comonomer effect.

8 Metallocene catalyst is a new kind of catalyst having homogeneous-site, molecule tailing capability and controlled structure. It can be used to synthesize special function polyolefine.

9 A comparison of metallocene polyethylene elastomers ( mPE ) and ethylene - propylene terpolymer ( EPDM ) was made in toughening modification of polypropylene ( PP ) .

10 The progresses in five - membered heterocyclic metallocene analogic complexes and their application in olefin polymerization are reviewed.

11 The developing of Ziegler-Natta catalyst and metallocene catalyst and producing technical aspect at home and abroad and the production technology of polybutene-1 are summarized in this paper.

12 The experimental condition of ethylene-propylene copolymerization catalyzed by titanium-oxygen heterocycle constrained geometry metallocene catalyst through mould device was reported.

13 Among the new fibers, new cellulosic fiber, syndiotactic PP fiber synthesized by metallocene catalyst and PTT filler will become the big competitors against the conventional fibers.

14 This paper has reviewed the present situation of the application of metallocene catalysts in homopolymerization and copolymerization of styrene.

15 The progress in synthesis of fulvene and its applications to organic synthesis and metallocene analogic complexes is summarized.

16 The recent progress in the immobilization of non - metallocene olefin polymerization catalyst is reviewed.

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

18 The recovery and reuse of waste solvent from the loading process of metallocene catalyst were studied.