Mechanism of Propylene Polymerization with MgCl2-Supported Ziegler–Natta Catalysts Based on Counting of Active Centers: The Role of External Electron Donor

X Shen, Z Fu, J Hu, Q Wang, Z Fan - The Journal of Physical …, 2013 - ACS Publications
Four R1R2Si (OMe) 2 type compounds were added as an external electron donor (De) in
propylene polymerization with TiCl4/Di/MgCl2 type supported Ziegler–Natta catalysts (Di …

Copolymerization of propene and higher α‐olefins with the metallocene catalyst Et[Ind]2HfCl2/methylaluminoxane

M Arnold, O Henschke, J Knorr - … Chemistry and Physics, 1996 - Wiley Online Library
Copolymerizations of propene with higher α‐olefins including 1‐butene, 1‐hexene, 1‐
octene, 1‐dodecene and 1‐hexadecene were carried out with an isospecific metallocene …

Process to produce low viscosity poly-alpha-olefins

MM Wu, CL Coker, JF Walzer Jr, P Jiang - US Patent 8,207,390, 2012 - Google Patents
US PATENT DOCUMENTS 2.978. 442 A 4/1961 Brightbill et al. 3,149,178 A 9, 1964
Hamilton et al. 3,164,578 A 1/1965 Baker et al. 3,382.291 A 5, 1968 Brennan 3,742,082 A 6 …

Distribution of active centers on TiCl4/MgCL2 catalyst for olefin polymerization

Z Fan, LX Feng, SL Yang - Journal of Polymer Science Part A …, 1996 - Wiley Online Library
Octene was polymerized with TiCl4/MgCl2—AlEt3 and the polymerization was quenched
with CH3COCl to introduce a CH3CO—group onto each propagation chain. The polymer …

Polyalpha-olefin compositions and processes to produce the same

MMS Wu, LS Baugh, JAM Canich, CS Chee… - US Patent …, 2014 - Google Patents
This invention relates to a polyalpha-olefin (and hydroge nated analogs thereof) comprising
more than 50 mole% of one or more C5 to C24 alpha-olefin monomers where the polyalpha …

Process to produce high viscosity fluids

MMS Wu, CL Coker, JF Walzer Jr, P Jiang… - US Patent …, 2011 - Google Patents
US7989670B2 - Process to produce high viscosity fluids - Google Patents US7989670B2 -
Process to produce high viscosity fluids - Google Patents Process to produce high viscosity …

Process to produce polyalphaolefins

MM Wu, MP Hagemeister, N Yang - US Patent 8,513,478, 2013 - Google Patents
Liquid poly-alpha-ole? ns having a KVloo of 2 to 6000 cSt, 20 Weight percent dimer or less
and a viscosity index of 60 or more are obtained by contacting in a reaction Zone, in the …

Metallocene‐catalyzed propene/1‐hexene copolymerization: Influence of amount and bulkiness of cocatalyst and of solvent polarity

F Forlini, ZQ Fan, I Tritto, P Locatelli… - … Chemistry and Physics, 1997 - Wiley Online Library
An investigation on the effect of the variation of the amount and the structure of cocatalyst
and of polarity of the solvent on propene/1‐hexene copolymerization with the isospecific …

Effects of ethylene as comonomer on the active center distribution of 1-hexene polymerization with MgCl2-supported Ziegler–Natta catalysts

Z Fan, L Zhang, S Xia, Z Fu - Journal of Molecular Catalysis A: Chemical, 2011 - Elsevier
1-Hexene homopolymerization and 1-hexene–ethylene copolymerization with TiCl4/MgCl2–
Al (C2H5) 3 catalyst were compared to investigate the effect of ethylene on the distribution of …

Mechanism of internal and external electron donor effects on propylene polymerization with MgCl2‐supported Ziegler–Natta catalyst: New evidences based on active …

Y Weng, B Jiang, Z Fu, Z Fan - Journal of Applied Polymer …, 2018 - Wiley Online Library
ABSTRACT Two TiCl4/Di/MgCl2 type supported Ziegler–Natta catalysts were prepared by
loading dibutylphthalate or dicyclopentyldimethoxysilane (DCPDMS)(internal donor, Di) and …