Invention Application
US20040030051A1 Polypropylene having low isotacticity and relatively high melting point
审中-公开
聚丙烯具有低全同立构规整性和较高熔点
- Patent Title: Polypropylene having low isotacticity and relatively high melting point
- Patent Title (中): 聚丙烯具有低全同立构规整性和较高熔点
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Application No.: US10416115Application Date: 2003-05-07
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Publication No.: US20040030051A1Publication Date: 2004-02-12
- Inventor: Yoshikuni Okumura , Toshiaki Ishikawa
- Priority: JP12/345588 20001113
- Main IPC: C08L023/00
- IPC: C08L023/00
Abstract:
A propylene polymer having the following characteristics: (E) 50nullmmmm: 85%; (F) Tmnull50.null0.012 (mmmm); (G) Esolnull5 wt %; and (H) 2,1-regioerrorsnull0.05%; wherein mmmm represents the isotacity ba the pentad indication, Tm represents the melting point of the polymer, Esol represents the posrtion of the polymer soluble in boiling diethyl ether and 2,1 regioerrors represents the head-to-head insertions on the polymer chain.
Information query
