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US 4,381,383 AGranted
Process for producing polyolefins
AssigneeMitsubishi Chemical Industries Limited
InventorsMasayoshi Hasuo, Yoshinori Suga, Masatoshi Suzuki, Nobuaki Goko, Yasuhiro Nishihara
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Abstract
A process for producing a polyolefin characterized by polymerizing an olefin in the presence of a catalytic system composed of solid titanium trichloride, an organic aluminum compound, an aromatic hydrocarbon and a monocarboxylic acid ester having an olefinic double bond or an aromatic ring in the molecule thereof.
Claims11
A process for producing a highly stereoregular olefin polymer, comprising:
- polymerizing an olefin in the vapor phase in the presence of a catalytic system composed of a (1) solid titanium trichloride containing material of the formula:
- TiCl.sub.3.(AlR'.sub.p X.sub.3 -.sub.p).sub.s.(C)t wherein R' is a hydrocarbon group of 1-20 carbon atoms, X represents halogen, p is a value of 0.ltoreq.p.ltoreq.2, s is a value of no more than 0.15, C is a complexing agent and t is at least 0.001;
- (2) an organoaluminum compound of the formula:
- AlR.sub.n.sup.4 Cl.sub.3-n wherein R.sup.4 is a C.sub.1 -C.sub.20 hydrocarbon group and n is a value of 1.95-2.10;
- (3) an aromatic hydrocarbon and (4) a monocarboxylic acid ester having an olefinic double bond or an aromatic ring in the molecule thereof, the molar ratio of the titanium trichloride:
- organoaluminum compound:
- aromatic hydrocarbon:
- monocarboxylic acid ester components ranging from 1:2-40:100-5000:0.05-2 in a hydrocarbon solvent.
5 more elements
A process for producing a highly stereoregular olefin polymer, comprising:
- polymerizing an olefin under slurry polymerization conditions in the presence of a catalytic system composed of a (1) solid titanium trichloride containing material of the formula:
- TiCl.sub.3.(AlR'.sub.p X.sub.3 -.sub.p).sub.s.(C)t wherein R' is a hydrocarbon group of 1-20 carbon atoms, X represents halogen, p is a value of 0.ltoreq.p.ltoreq.2, s is a value of no more than 0.15, C is a complexing agent and t is at least 0.001;
- (2) an organoaluminum compound of the formula:
- AlR.sub.n.sup.4 Cl.sub.3-n wherein R.sup.4 is a C.sub.1 -C.sub.20 hydrocarbon group and n is a value of 1.95-2.10;
- (3) an aromatic hydrocarbon and (4) a monocarboxylic acid ester having an olefinic double bond or an aromatic ring in the molecule thereof, the molar ratio of the titanium trichloride:
- organoaluminum compound:
- aromatic hydrocarbon:
- monocarboxylic acid ester components ranging from 1:2-40:100-5000:0.05-2 in a hydrocarbon solvent.
5 more elements
Dependencies are inferred from the claim text.