JPS56133012A - Filtering medium for regenerating waste liquid of cleaning - Google Patents

Filtering medium for regenerating waste liquid of cleaning

Info

Publication number
JPS56133012A
JPS56133012A JP2571980A JP2571980A JPS56133012A JP S56133012 A JPS56133012 A JP S56133012A JP 2571980 A JP2571980 A JP 2571980A JP 2571980 A JP2571980 A JP 2571980A JP S56133012 A JPS56133012 A JP S56133012A
Authority
JP
Japan
Prior art keywords
cleaning
waste liquid
medium
pore diameters
foamed polyurethane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2571980A
Other languages
Japanese (ja)
Inventor
Tsuneaki Narumiya
Makoto Unno
Tokumi Nishiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRIDGESTONE EBAA RAITO TOKYO SERVICE KK
BURIJISUTON EBAA RAITO TOKYO S
HAKUYOUSHIYA KK
Bridgestone Corp
Original Assignee
BRIDGESTONE EBAA RAITO TOKYO SERVICE KK
BURIJISUTON EBAA RAITO TOKYO S
HAKUYOUSHIYA KK
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BRIDGESTONE EBAA RAITO TOKYO SERVICE KK, BURIJISUTON EBAA RAITO TOKYO S, HAKUYOUSHIYA KK, Bridgestone Corp filed Critical BRIDGESTONE EBAA RAITO TOKYO SERVICE KK
Priority to JP2571980A priority Critical patent/JPS56133012A/en
Publication of JPS56133012A publication Critical patent/JPS56133012A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

PURPOSE:To enhance the solvent resistance of the titled filtering medium by a method wherein porous bodies consisting of soft foamed polyurethane of a three- dimensional network structure are sequentially laminated in the order of decreasing pore diameters to obtain the filter medium for the waste liquid of cleaning. CONSTITUTION:The porous bodies 1 consisting of the soft foamed polyurethane of the three-dimensional network structure having open pores 2 and devoid of cell membranes are sequentially laminated in the order of decreasing pore diameters (namely, in the order of increasing number of cells) to produce the filter medium. The waste liquid of cleaning is caused to flow through the medium in the direction of decreasing pore diameters. Incidentally, an adsorbent for adsorbing and removing contaminants dissolved in the waste liquid of cleaning, such as activated carbon, activated white clay, colloidal clay, etc. may be interposed between desired layers of the medium. In addition, the foamed polyurethane is excellent in solvent resistance.
JP2571980A 1980-03-01 1980-03-01 Filtering medium for regenerating waste liquid of cleaning Pending JPS56133012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2571980A JPS56133012A (en) 1980-03-01 1980-03-01 Filtering medium for regenerating waste liquid of cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2571980A JPS56133012A (en) 1980-03-01 1980-03-01 Filtering medium for regenerating waste liquid of cleaning

Publications (1)

Publication Number Publication Date
JPS56133012A true JPS56133012A (en) 1981-10-17

Family

ID=12173593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2571980A Pending JPS56133012A (en) 1980-03-01 1980-03-01 Filtering medium for regenerating waste liquid of cleaning

Country Status (1)

Country Link
JP (1) JPS56133012A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137213U (en) * 1984-08-09 1986-03-07 井上エムテ−ピ−株式会社 air filter
JPS62176512A (en) * 1986-01-30 1987-08-03 Inoue Mtp Co Ltd Manufacture of air filter
JP2008229615A (en) * 2007-02-05 2008-10-02 Visteon Global Technologies Inc Multilayered long life filter using convoluted foam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279367A (en) * 1975-10-06 1977-07-04 Scott Paper Co Foam filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279367A (en) * 1975-10-06 1977-07-04 Scott Paper Co Foam filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137213U (en) * 1984-08-09 1986-03-07 井上エムテ−ピ−株式会社 air filter
JPS62176512A (en) * 1986-01-30 1987-08-03 Inoue Mtp Co Ltd Manufacture of air filter
JPH0154086B2 (en) * 1986-01-30 1989-11-16 Inoue Mtp Kk
JP2008229615A (en) * 2007-02-05 2008-10-02 Visteon Global Technologies Inc Multilayered long life filter using convoluted foam

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