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US 4,197,420 AGranted
Method for producing oligomers from straight-chain alpha olefins, subsequently hydrogenating such oligomers and saturated products so obtained
OwnerGiuseppe Ferraris, Aldo Priola +1inventors
InventorsGiuseppe Ferraris, Aldo Priola, Sebastiano Cesca
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Abstract
Oligomers are obtained from straight-chain alpha olefins by contacting these with a catalytic system of the binary type, which is composed of an organic metallic compound of aluminum and a haloid acid. Subsequent hydrogenation of the oligomers is carried out in order to remove possible residual unsaturations.
Claims27
A method for the preparation of oligomers from alpha-olefins comprising polymerizing said alpha-olefins in the presence of a catalytic system composed of:
- (a) an organic metallic compound of aluminum having the following general formula:
- R.sub.m AlX.sub.3-m
- wherein X is a halogen atom, R is hydrogen or a monovalent radical selected from the group consisting of alkyl, aryl, cycloalkyl, aralkyl, alkaryl, alkoxyl and ester radicals having from 1 to 12 carbon atoms, and m is between 1 and 3;
- and
- (b) a compound having the formula HX in which X is halogen and which is capable of reacting with the compounds defined above under (a) to produce a catalytic species capable of starting the polymerization.
2 more elements
Dependencies are inferred from the claim text.