Impact resistant copolymerized polypropylene and preparation method thereof
The invention provides impact resistant copolymerized polypropylene and a preparation method thereof. The preparation method of the impact resistant copolymerized polypropylene includes the steps: adding a main catalyst, a cocatalyst and a modifier into a first gas-phase reactor, introducing propyle...
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| creator | FENG KAI RAN CHONGWEN HU TINGFANG YANG FAN TIAN QICHAO YANG TONG CHEN JIGUO ZHAO ZE ZHU JUN XI JUN YAN WEIPENG ZHOU HAO GUAN LI MA XIAOWEI HU BIN |
| description | The invention provides impact resistant copolymerized polypropylene and a preparation method thereof. The preparation method of the impact resistant copolymerized polypropylene includes the steps: adding a main catalyst, a cocatalyst and a modifier into a first gas-phase reactor, introducing propylene and hydrogen into the first gas-phase reactor, and carrying out a first polymerization reaction to obtain a first reaction product; collecting a solid part of the first reaction product, adding the solid part of the first reaction product into a second gas-phase reactor, and introducing ethylene,propylene and hydrogen into the second gas-phase reactor, carrying out a second polymerization reaction, and collecting a solid part of the second reaction product, to prepare the impact resistant copolymerized polypropylene. The activity of the main catalyst is 10000-20000 g/g. The preparation method can ensure the long-term stable production of the impact resistant copolymerized polypropylene,the impact strength of a s |
| format | Patent |
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The preparation method of the impact resistant copolymerized polypropylene includes the steps: adding a main catalyst, a cocatalyst and a modifier into a first gas-phase reactor, introducing propylene and hydrogen into the first gas-phase reactor, and carrying out a first polymerization reaction to obtain a first reaction product; collecting a solid part of the first reaction product, adding the solid part of the first reaction product into a second gas-phase reactor, and introducing ethylene,propylene and hydrogen into the second gas-phase reactor, carrying out a second polymerization reaction, and collecting a solid part of the second reaction product, to prepare the impact resistant copolymerized polypropylene. The activity of the main catalyst is 10000-20000 g/g. 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Impact resistant copolymerized polypropylene and preparation method thereof |
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