Propylene polymer, composition containing the polymer, and molded objects obtained from these
A technology of polymer and resin composition, applied in transportation and packaging, thin material processing, etc., can solve the unsatisfactory problems of heat resistance and rigidity
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Embodiment 1a
[0279] (1) Manufacture of solid catalyst carrier
[0280] Add 300 g of SiO to a 1 L sidearm flask 2 (manufactured by Tokai Chemical Co., Ltd.) As a sample, 800 ml of toluene was added and slurried. Then transfer the liquid to a 5-liter four-neck flask, and add 260 ml of toluene. 2830 ml of a toluene solution of methylaluminoxane (hereinafter abbreviated as MAO) (manufactured by ALBEMARLE, 10% by weight solution) was introduced. Keep at room temperature and stir for 30 minutes. The temperature was raised to 110° C. over 1 hour, and the reaction was carried out for 4 hours. After the reaction, cool to room temperature. After cooling, take out supernatant toluene, replace with new toluene, till replacement rate reaches 95% (wherein, term " replacement rate " among the present invention refers to solvent replacement rate, for example, will take out 9L toluene from 10L toluene, 9 L of heptane was added to achieve a "displacement rate" of 10 L defined as 90%).
[0281] (2) Man...
Embodiment 2a
[0293] It implemented in the same manner as Example 1a except having changed the polymerization method as follows.
[0294] (1) Main aggregation
[0295] With 40kg / hour of propylene, 5NL / hour of hydrogen, 1.0g / hour of catalyst slurry manufactured by the above-mentioned embodiment 1a (3) as solid catalyst component, 4.0ml / hour of triethylaluminum, the inner volume is 58 liters tubular The feed is continuously fed into the polymerizer, and the polymerization is carried out in a liquid-filled state in which there is no gas phase. The temperature of the tubular reactor was 30° C., and the pressure was 3.2 MPa / G.
[0296] The resulting slurry was sent to a tank-type polymerizer with a stirrer with an inner volume of 1,000 liters for further polymerization. Propylene was supplied to the polymerizer at 45 kg / hour, and hydrogen gas was supplied thereto so that the hydrogen concentration in the gas phase portion became 0.2 mol%. Polymerization was carried out under conditions of a p...
Embodiment 3a
[0302] It implemented in the same manner as Example 1a except having changed the polymerization method as follows.
[0303] (1) Main aggregation
[0304] With 40kg / hour of propylene, 5NL / hour of hydrogen, 1.0g / hour of catalyst slurry produced by the above-mentioned embodiment 1a (3) as solid catalyst component, 4.0ml / hour of triethylaluminum to the tubular polymerization of 58 liters of internal volume Continuously feed the material in the vessel, and carry out the polymerization in the state of being filled with liquid without gas phase. The temperature of the tubular reactor was 30° C., and the pressure was 3.2 MPa / G.
[0305] The resulting slurry was sent to a tank-type polymerizer with a stirrer with an inner volume of 1,000 liters for further polymerization. Propylene was supplied to the polymerizer at 45 kg / hour, and hydrogen gas was supplied thereto so that the hydrogen concentration in the gas phase portion became 0.2 mol%. Polymerization was carried out under condi...
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