Title:
POLYPROPYLENE COMPOSITION
Document Type and Number:
Japanese Patent JPH03195751
Kind Code:
A
Abstract:
PURPOSE:To obtain a polypropylene composition excellent in balance between easy processability and strength without any problems in bleeding, etc., by adding a nucleating agent to specific polypropylene having relatively low stereoregularity. CONSTITUTION:The objective polypropylene composition obtained by adding (A) 0.005-5 pts.wt. nucleating agent (e.g. a metal salt of an aromatic phosphorus compound) to (B) 100 pts.wt. polypropylene having 0.80-0.91 isotactic pentad fraction (P), 80-95wt.% content of a portion insoluble in boiling n-heptane and the relation between the isotactic pentad fraction (Pr) of the portion insoluble in n-heptane and (P) expressed by the formula 0<(Pr)-(P)<=0.08.
Inventors:
SAITO JUN
Application Number:
JP33400089A
Publication Date:
August 27, 1991
Filing Date:
December 22, 1989
Export Citation:
Assignee:
CHISSO CORP
International Classes:
C08K5/00; C08F8/00; C08F10/06; C08F110/10; C08L23/10; C08L23/12; (IPC1-7): C08F10/06; C08K5/00; C08L23/10
Domestic Patent References:
| JPH01104639A | 1989-04-21 | |||
| JPH01104638A | 1989-04-21 | |||
| JPS6337148A | 1988-02-17 |
Attorney, Agent or Firm:
Yataro Sasai (1 person outside)