Title:
POROUS FILM
Document Type and Number:
Japanese Patent JP2022133536
Kind Code:
A
Abstract:
To provide a porous film having excellent water absorption performance and furthermore high tensile strength, and a method for producing the film.SOLUTION: A porous film has a porous substrate containing polyethylene, where the polyethylene contains ultrahigh-molecular weight polyethylene, the weight-average molecular weight (Mw) of the ultrahigh-molecular weight polyethylene is 1×106 or more, and acrylic monomer (a) and (meth)acrylic acid monomer (b) which are expressed by the following general formula [1] are graft-polymerized into the porous substrate. (R1 denotes alkyl group including a hydrogen atom or 1 to 8 carbon atoms, and R2 denotes hydroxyalkyl group with the carbon number 3 to 12).SELECTED DRAWING: None
Inventors:
KOKUBO YOSHIAKI
Application Number:
JP2021032263A
Publication Date:
September 14, 2022
Filing Date:
March 02, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08F255/02; B01D69/02; B01D69/10; B01D69/12; B01D71/26; B01D71/40; B01D71/78; C08J9/36
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