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metallocene
(redirected from Metallocenes)

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metallocene [mɪˈtæləʊˌsiːn]
n
(Chemistry / Elements & Compounds) Chem any one of a class of organometallic sandwich compounds of the general formula M(C5H5)2, where M is a metal atom See ferrocene
[from metallo- + -cene, as in ferrocene]
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Metallocenes, filled materials and most other thermoplastic materials.
Extrusion suppliers directory by Medical Product Outsourcing
Varex blown film lines range from monolayer up to nine layers for LDPE, LLDPE, HDPE, nylon, EVOH metallocenes and blends with extruders from 2 to 6 in.
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However, despite their numerous advantages, several technical problems still need to be improved for a better use of metallocene based catalysts, such as the need of these systems to be activated by large amounts of cocatalyst such alkylaluminoxanes, in order to achieve the maximum metallocene catalytic activity [2], and the need of control the polymer morphology, consequently, unsupported metallocenes can not be used in slurry and gas-phase processes.
Ethylene polymerization over (nBuCp)[.sub.2]Zr[Cl.sub.2]/MAO ... by Carrero, A.; Van Grieken, R.; Suarez, I.; Paredes, B. / Polymer Engineering and Science
 
 
 
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