PRODUCTION OF HYDROPHILIC FLUOROPLASTIC POROUS MEMBRANE

Title:

PRODUCTION OF HYDROPHILIC FLUOROPLASTIC POROUS MEMBRANE

Document Type and Number:

Japanese Patent JPH05131124

Kind Code:

A

Abstract:

PURPOSE: To provide a hydrophilic fluoroplastic porous membrane having high hydrophilicity and excellent durability and excellent in chemical resistance, solvent resistance and heat resistance by grafting and crosslinking a specific hydrophilic monomer in the pores of a fluoroplastic porous membrane to fix the same to said pores.

CONSTITUTION: A solution of tertiary or quaternary amine containing a structural formula CH2=CR1-(wherein R1 is H or a 1-5C alkyl group) or a hydrophilic monomer containing groups represented by structural formulae CH2=CR1- and -CH(R2) (R) (wherein R2 and R3 may be same or different and are a 1-5C alkyl group) is infiltrated in the pores of a fluoroplastic porous membrane and irradiated with ultraviolet rays to graft and crosslink the hydrophilic monomer.

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Inventors:

URAIRI MASAKATSU
MATSUMOTO KENJI
MURAKAMI TOMOYUKI

Application Number:

JP29426691A

Publication Date:

May 28, 1993

Filing Date:

November 11, 1991

Export Citation:

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Assignee:

NITTO DENKO CORP

International Classes:

B01D67/00; B01D71/32; (IPC1-7): B01D67/00; B01D71/32

Attorney, Agent or Firm:

Hiroyuki Ikeuchi (1 person outside)

Previous Patent: JPS5131123

Next Patent: SYNTHETIC HYDROPHILIC MEMBRANE OF HOLLOW FIBER OR FLAT MEMBRANE SHAPE FOR DIALYSIS AND ULTRAFILTRATI...