1-decene/1-dodecene copolymer and lubricating-oil composition containing same
a technology of -olefin polymer and lubricating oil, which is applied in the direction of lubricant composition, organic chemistry, fuels, etc., can solve the problems of high cost of -olefin polymer products for lubricating oil, high demand for 1-decene, and limited quantity of 1-decene production, etc., to achieve excellent physical properties, excellent viscosity characteristics, and low temperature flowability. , the effect o
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production example 1
Production of (1,1′-dimethylsilylene)(2,2′-dimethylsilylene)-bis(cyclopentadienyl)zirconium dichloride
[0102]About 13.8 g (600 mmol) of metal Na and 400 ml of dry THF (tetrahydrofuran) were put into a nitrogen-purged 1000-ml three-neck flask, and stirred therein at 0° C. After 5 minutes, from 1 to 2 ml of cyclopentadiene was dropwise added thereto, and when the hydrogen generation was stopped, from 1 to 2 ml of cyclopentadiene was newly added thereto. This was repeated so that 50 ml (600 mmol) in total of cyclopentadiene was added. The reaction solution changed from colorless transparent to pale pink. After removal of THF through distillation under reduced pressure, the crystal was washed twice with hexane and dried into solid under reduced pressure to give cyclopentadienyl sodium as a pink powder.
[0103]457 ml of THF was added to 43.0 g (480 mmol) of cyclopentadienyl sodium and stirred at 0° C. This was cooled to −78° C., and 29.2 ml (480 mmol) of dichlorodimethylsilane was gradually...
example 1-1
[0109]A stainless autoclave having an inner capacity of 1 liter was fully dried and purged with nitrogen, and thereafter 80 ml of 1-dodecene and 320 ml of 1-decene, and next 0.2 mmol of triisobutylaluminium were put into it, and heated up to 105° C. One ml of a catalyst mixture prepared separately (this was prepared as follows: 0.1 mmol of triisobutylaluminium (2 mmol / ml toluene solution; 0.05 ml), 10 ‘Imo’ of (1,1′-dimethylsilylene)(2,2′-dimethylsilylene)-bis(cyclopentadienyl)zirconium dichloride prepared in Production Example 1 (10 μmol / ml toluene solution; 1 ml) and 0.012 mmol (11.5 mg) of powdery N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate were put into a 10-ml glass-made Schlenk bottle in a nitrogen atmosphere, and stirred for 1 minute or so, and then 0.5 ml of 1-decene was added thereto and further stirred at room temperature for 1 hour) was put into the autoclave, and 0.05 MPaG hydrogen was introduced thereinto to start polymerization. After 60 minutes at 105° C.,...
example 1-2
[0110]In the same manner as in Example 1-1 except that the polymerization temperature was 90° C., a colorless transparent polymer from which the components having 24 or smaller carbon atoms had been removed, and then its hydrogenated product were obtained in an amount of 249 g each. These were analyzed according to the above-mentioned methods, and the results are shown in Table 1.
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