Method for manufacturing propylene polymer material
AssigneeSumitomo Chemical Company, Limited
InventorsKazuo TAKAOKI, Shohei FUKUHARA, Tsutomu IMAI, Shinichi KUMAMOTO
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Abstract
Provided is a propylene polymer material that can be suitably used in a molding step requiring a low viscosity and a high fluidity, that has a small molecular weight distribution, and that has a near-white color that can be used in various applications. A method for manufacturing a propylene polymer material, the method comprising: a continuous supply step of continuously supplying propylene, an olefin polymerization solid catalyst component, an organoaluminum compound, and an organozinc compound to a reactor; and a continuous extraction step of continuously extracting a part of a propylene polymer material obtained in the reactor from the reactor.
Claims17
A method for manufacturing a propylene polymer material, the method comprising:
- a continuous supply step of continuously supplying propylene, an olefin polymerization solid catalyst component, an organoaluminum compound, and an organozinc compound to a reactor;
- and
- a continuous extraction step of continuously extracting a part of a propylene polymer material obtained in the reactor from the reactor.
A propylene polymer material having (A) of 0.010 or more and (B)/(A) of 0.40 or more in the following (A) and (B):
- (A) A ratio of the number of organic metal-containing terminal groups to the number of starting terminals of the propylene polymer materials
- (B) A ratio of the number of organic metal-containing terminal groups to the number of starting terminals of a specific high molecular weight fraction of the propylene polymer material.
Dependencies are inferred from the claim text.