Title:
ポリオレフィン製微多孔膜
Document Type and Number:
Japanese Patent JP4698091
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a microporous film made of a polyolefin and capable of maintaining excellent permeation performances and high thrusting strength, a small heat shrinkage percentage and heat resistance compatible with pore clogging characteristics at a high dimension. SOLUTION: This microporous film made of the polyolefin is characterized by comprising a homopolymer polyethylene, a copolymer polyethylene and polypropylene and having a correlation between the molecular weight determined from GPC/FTIR and terminal methyl group concentration satisfying a specific relationship.
Inventors:
Yusuke Nagashima
Application Number:
JP2001275038A
Publication Date:
June 08, 2011
Filing Date:
September 11, 2001
Export Citation:
Assignee:
Asahi Kasei E-materials Co., Ltd.
International Classes:
C08J9/26; H01M2/16; C08L23/06; C08L23/08; C08L23/10
Domestic Patent References:
| JP11269290A | ||||
| JP10199329A | ||||
| JP4126352A |
Attorney, Agent or Firm:
Yoshio Narui
Hideo Takei
Yoshiaki Matsui
Hideo Takei
Yoshiaki Matsui