PRODUCTION METHOD OF HEAT-RESISTANT PROPYLENE RESIN MICROPOROUS FILM, HEAT-RESISTANT PROPYLENE RESIN MICROPOROUS FILM, SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

Document Type and Number:

Japanese Patent JP2015063639

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a heat-resistant propylene resin microporous film and a production method of the film which is excellent in both transmitting property for ions such as a lithium ion and heat resistance, and which prevents contamination in a production line.SOLUTION: The production method of a heat-resistant propylene resin microporous film includes the steps of: (I) applying a composition comprising a radical polymerizable monomer containing a polyfunctional acrylic monomer having 3 or more functional groups and a photopolymerization initiator on a surface of a propylene resin microporous film so as to deposit 5 to 25 pts.wt. of the radical polymerizable monomer and 0.1 to 2.5 pts.wt. of the photopolymerization initiator on 100 pts.wt. of the propylene resin microporous film; and (II) irradiating the propylene resin microporous film after the step (I) with UV rays in an integrated luminous quantity of 1000 to 5000 mJ/cm.

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Inventors:

NAKAMURA TADANORI
TADA HIROSHI

Application Number:

JP2013199484A

Publication Date:

April 09, 2015

Filing Date:

September 26, 2013

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD

International Classes:

C08J9/36; C08F2/00; C08F2/48; C08F255/02; H01M2/16

Domestic Patent References:

JP2011517704A	2011-06-16
JP2013163806A	2013-08-22
JP2012221889A	2012-11-12
JPS63260938A	1988-10-27
JPS6327243A	1988-02-04

Foreign References:

WO2014073451A1

2014-05-15

Attorney, Agent or Firm:

Takuya Yamamoto

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