Title:
POLYPROPYLENE RESIN FOR FILM AND FILM MADE USING THE SAME
Document Type and Number:
Japanese Patent JP3816971
Kind Code:
B2
Abstract:
PURPOSE: To obtain a polypropylene resin which, even when formed into a film at a high speed, can give a high-quality film which is only little decreased in transparency, impact resistance, etc.; and to prepare a film comprising the resin as the base.
CONSTITUTION: The resin has an isotactic pentad fraction (P) of 85.0-92.0mol%, an n-heptan-insoluble content (H) of 93.0-97.0wt.%, and an MI of 1-20g/10min. It satisfies the relationships (0.750P+27.125)<H and τ≤(0.65-0.025MI) (wherein τis the relaxation time as measured at 175°C and a frequency, ωo of 100rad/sec). The film comprises this polypropylene resin as the base.
Inventors:
Ning Seta
Satoshi Nakatsuka
Yoshikatsu Tanaka
Yoshiyuki Suetsugu
Satoshi Nakatsuka
Yoshikatsu Tanaka
Yoshiyuki Suetsugu
Application Number:
JP16869295A
Publication Date:
August 30, 2006
Filing Date:
July 04, 1995
Export Citation:
Assignee:
Prime Polymer Co., Ltd.
International Classes:
C08F10/06; C08J5/18; C08F8/00; C08L23/02; (IPC1-7): C08F10/06; C08J5/18; //C08L23:02
Domestic Patent References:
| JP4218511A |
Attorney, Agent or Firm:
Tamotsu Otani
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