发明公开
- 专利标题： High stereoregular polypropylenes
- 专利标题（中）： Hochstereospezifisches聚丙烯
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申请号： EP96108226.0申请日： 1996-05-23
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公开(公告)号： EP0748824A1公开(公告)日： 1996-12-18
- 发明人: Saito, Jun , Kawamoto, Naoshi , Kageyama, Akiko , Oogi, Yoshiyuki , Hatada, Kouichi
- 申请人： CHISSO CORPORATION
- 申请人地址： 6-32, Nakanoshima 3-chome, Kita-ku Osaka-shi, Osaka-fu 530 JP
- 专利权人： CHISSO CORPORATION
- 当前专利权人： CHISSO CORPORATION
- 当前专利权人地址： 6-32, Nakanoshima 3-chome, Kita-ku Osaka-shi, Osaka-fu 530 JP
- 代理机构： Türk, Gille, Hrabal, Leifert
- 优先权： JP136425/95 19950602
- 主分类号： C08F10/06
- IPC分类号： C08F10/06
摘要：
A high stereoregular polypropylene characterized in that
(a) an isotactic pentad (m m m m) is 0.950 to 0.995,
(b) a syndiotactic pentad (r r r r) is 0 to 0.01,
(c) a different bond due to 2,1- and 1,3-insertions of propylene monomer is 0 to 0.3 mol%,
(d) an absence of a terminal double bond is confirmed,
(e) a weight average molecular weight (Mw) is 50,000 to 1,000,000 and
(f) a ratio (Mw/Mn) of the weight average molecular weight (Mw) to a number average molecular weight (Mn) is 1.5 to 3.8, (a) to (d) being determined from 13 C NMR spectra.
The high stereoregular polypropylenes have narrow molecular weight distributions and high melting points, which exhibit very high tenacity, high-temperature rigidity, heat resistance and good molding properties when used as molding materials.
(a) an isotactic pentad (m m m m) is 0.950 to 0.995,
(b) a syndiotactic pentad (r r r r) is 0 to 0.01,
(c) a different bond due to 2,1- and 1,3-insertions of propylene monomer is 0 to 0.3 mol%,
(d) an absence of a terminal double bond is confirmed,
(e) a weight average molecular weight (Mw) is 50,000 to 1,000,000 and
(f) a ratio (Mw/Mn) of the weight average molecular weight (Mw) to a number average molecular weight (Mn) is 1.5 to 3.8, (a) to (d) being determined from 13 C NMR spectra.
The high stereoregular polypropylenes have narrow molecular weight distributions and high melting points, which exhibit very high tenacity, high-temperature rigidity, heat resistance and good molding properties when used as molding materials.
公开/授权文献
- EP0748824B1 High stereoregular polypropylenes 公开/授权日：1999-11-24
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