Synthesis, Characterization, and Reaction of Aluminum Halide Amides Supported by a Bulky β-Diketiminato Ligand

2008 ◽  
Vol 47 (7) ◽  
pp. 2585-2592 ◽  
Author(s):  
Ying Yang ◽  
Thomas Schulz ◽  
Michael John ◽  
Arne Ringe ◽  
Herbert W. Roesky ◽  
...  
Keyword(s):  
Aluminum Halide

ChemInform Abstract: Novel Halogenation of Thiophenes with Benzeneseleninyl Chloride and Aluminum Halide.

ChemInform ◽  
1990 ◽  
Vol 21 (51) ◽  
Author(s):  
N. KAMIGATA ◽  
T. SUZUKI ◽  
M. YOSHIDA
Keyword(s):  
Aluminum Halide

Transition Metal Catalysts. I. Ethylene Polymerization with a Soluble Catalyst Formed from an Aluminum Halide, Tetraphenyltin and a Vanadium Halide1

1960 ◽  
Vol 82 (15) ◽  
pp. 3883-3887 ◽  
Author(s):  
Wayne L. Carrick ◽  
Rudolph W. Kluiber ◽  
Eugene F. Bonner ◽  
Lloyd H. Wartman ◽  
Frank M. Rugg ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ethylene Polymerization ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Aluminum Halide

Ethylene-Propylene Copolymers Produced with Soluble Catalysts

1962 ◽  
Vol 35 (4) ◽  
pp. 1101-1113
Author(s):  
R. J. Kelly ◽  
H. K. Garner ◽  
H. E. Haxo ◽  
W. R. Bingham
Keyword(s):  
Physical Properties ◽  
Heterogeneous Catalysts ◽  
Accelerated Aging ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
Ethylene Propylene ◽  
Aging Properties ◽  
Aluminum Halide ◽  
Catalyst Systems ◽  
Catalyst Efficiency

Abstract Soluble catalyst systems derived from alkyl aluminum halides in combination with vanadium oxytrichloride or tetrachloride produce highly random ethylene-propylene copolymers with high catalyst efficiency. By the choice of the alkyl aluminum halide and molar ratio of aluminum to vanadium, variations in polymerization efficiency and molecular weight are possible. The copolymers prepared with these soluble catalysts show advantages in both processing and physical properties over those prepared with heterogeneous catalysts. Vulcanizates of these copolymers show somewhat different accelerated aging properties depending on the additive used along with the peroxide. Low temperature properties of copolymers containing less than 70 weight % propylene show a tendency for crystallization which is not shown by X-ray diffraction. Overall physical properties and tire tests show some preference for the 65 weight % propylene copolymer over the 50% material.

Sign in / Sign up

Export Citation Format

Share Document