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Title:
INFLATION FILM, SEALANT FILM FOR RETORT MADE UP OF INFLATION FILM AND METHOD FOR FORMING INFLATION FILM
Document Type and Number:
Japanese Patent JP2001219466
Kind Code:
A
Abstract:

To provide a laminate ply or a multi-layer film of polypropylene resin formed by an inflation process or a sealant film for retort made up of the laminate ply or the multi-layer film as well as a method for forming the laminate-ply or the multi-layer film.

The laminate-ply or the multi-layer film is obtained by adding a high melt tension polypropylene resin to a polypropylene resin or forming a layer containing the high melt tension polypropylene resin. In addition, the film if formed by specifying a bubble cooling method and a bubble take-off direction in the inflation process.


Inventors:
HIGASA SHINICHI
SENOO YASUNORI
Application Number:
JP2000030898A
Publication Date:
August 14, 2001
Filing Date:
February 08, 2000
Export Citation:
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Assignee:
OKURA INDUSTRIAL CO LTD
International Classes:
C08J5/18; B29C55/28; B32B27/32; C08L23/10; (IPC1-7): B29C55/28; B32B27/32; C08J5/18; C08L23/10
Domestic Patent References:
JPH05237930A1993-09-17
JPH07290566A1995-11-07
JPH09327889A1997-12-22
JPH0976431A1997-03-25
JPH08174665A1996-07-09
JPH05228995A1993-09-07
JPH09150491A1997-06-10
JPS6127239A1986-02-06
JPH06210728A1994-08-02
JP2000119451A2000-04-25
Foreign References:
WO1999007752A11999-02-18



 
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