Title:
ポリプロピレン系フィルム及びその多層フィルム
Document Type and Number:
Japanese Patent JP4358345
Kind Code:
B2
Abstract:
THE OBJECT IS TO PROVIDE A POLYPROPYLENE FILM WHICH CAN BE SUITABLY USED AS A FOOD PACKAGING MATERIAL, WHICH DOES NOT DEVELOP IRREGULAR PATTERNS, SUCH AS ORANGE PEEL, ON THE FILM SURFACE DUE TO RETORT STERILIZATION PROCESS. A POLYPROPYLENE FILM IS PROVIDED WHICH COMPRISES AS MAIN COMPONENTS: 91) A PROPYLENE-(ALPHA)- OLEFIN BLOCK COPOLYMER (I) IN AN AMOUNT OF 85 TO 98 BY WEIGHT WHICH HAS (A) A POLYPROPYLENE BLOCK IN AN AMOUNT OF 95 TO 70BY WEIGHT AND (B) AN ELASTOMER BLOCK OF A COPOLYMER OF PROPYLENEN AND AN (ALPHA)-OLEFIN OF C2 TO C12 (EXCEPT FOR C3), IN AN AMOUNT OF 5 TO 30BY WEIGHT AND (2) AN ETHYLENIC COPOLYMER ELASTOMER IN AN AMOUNT OF 15 TO 2BY WEIGHT WHICH IS A COPOLYMER OF ETHYLENE IN AN AMOUNT OF 90 TO 70BY WEIGHT AND AN (ALPHA) -OLEFIN OF C3 TO C12 IN AN AMOUNT OF 10 TO 30 5 BY WEIGHT.
Inventors:
Kazuyuki Watanabe
Takao Minamijutsu
Takao Minamijutsu
Application Number:
JP6181899A
Publication Date:
November 04, 2009
Filing Date:
March 09, 1999
Export Citation:
Assignee:
Okamoto Co., Ltd.
International Classes:
B65B55/02; C08L53/00; B29D7/01; B32B27/32; B65D65/40; B65D81/24; C08F210/00; C08J5/18
Domestic Patent References:
| JP8311271A | ||||
| JP9143338A | ||||
| JP2000119480A | ||||
| JP9316251A | ||||
| JP9143337A | ||||
| JP9309983A | ||||
| JP11228781A | ||||
| JP8259721A | ||||
| JP10081763A |
Foreign References:
| WO1997010299A1 |
Attorney, Agent or Firm:
Eichi International Patent Office