Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POLYOLEFIN RESIN POROUS FILM AND SEPARATOR FOR BATTERY
Document Type and Number:
Japanese Patent JP2011194650
Kind Code:
A
Abstract:

To provide a polyolefin resin porous film having high intercommunicating properties and excellent dimensional stability and fulfilling such a shutdown function that pores are not closed at 120°C or less but are sensitively and completely closed within a temperature range of 120-140°C.

The polyolefin resin porous film includes: at least one layer mainly composed of a polypropylene resin composition (A); and at least one layer mainly composed of a polyethylene resin composition (B) which satisfies the condition (i): the melting point of the polyethylene resin composition (B) is 130°C or higher, and the condition (ii): the melt flow rate (MFR) of the polyethylene resin composition (B) is 2.0-15 g/10 minute.


More Like This:
JP3362756[Title of Invention] Oxygen Absorbent Resin Composition and Oxygen Absorbent Laminate
JP2023093801POLYIMIDE RESIN AND ADHESIVE USING THE SAME, AND LAMINATE
JP6679920Gas barrier laminate and its manufacturing method
Inventors:
TERAKAWA TORU
YAMADA TAKEMIKI
USAMI YASUSHI
Application Number:
JP2010062202A
Publication Date:
October 06, 2011
Filing Date:
March 18, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI PLASTICS INC
International Classes:
B32B27/32; B32B5/32; H01M50/417; H01M50/449; H01M50/489; H01M50/491
Domestic Patent References:
JP2008311220A2008-12-25
Foreign References:
WO2010026954A12010-03-11



 
Previous Patent: IMAGE FORMING DEVICE

Next Patent: UNSEALING DEVICE OF ENVELOPE