CA981991A - Hydrophilic microporous film - Google Patents

Hydrophilic microporous film

Info

Publication number
CA981991A
CA981991A CA131,643A CA131643A CA981991A CA 981991 A CA981991 A CA 981991A CA 131643 A CA131643 A CA 131643A CA 981991 A CA981991 A CA 981991A
Authority
CA
Canada
Prior art keywords
microporous film
hydrophilic microporous
hydrophilic
film
microporous
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.)
Expired
Application number
CA131,643A
Other versions
CA131643S (en
Inventor
Stephen R. Schulze
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.)
Celanese Corp
Original Assignee
Celanese 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 Celanese Corp filed Critical Celanese Corp
Application granted granted Critical
Publication of CA981991A publication Critical patent/CA981991A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/056—Forming hydrophilic coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C08J7/065—Low-molecular-weight organic substances, e.g. absorption of additives in the surface of the article
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
CA131,643A 1971-01-14 1972-01-04 Hydrophilic microporous film Expired CA981991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10656471A 1971-01-14 1971-01-14

Publications (1)

Publication Number Publication Date
CA981991A true CA981991A (en) 1976-01-20

Family

ID=22312104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA131,643A Expired CA981991A (en) 1971-01-14 1972-01-04 Hydrophilic microporous film

Country Status (4)

Country Link
CA (1) CA981991A (en)
DE (1) DE2201192A1 (en)
FR (1) FR2121818B1 (en)
GB (1) GB1347174A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130069A1 (en) * 1980-07-31 1982-03-04 Celanese Corp., 10036 New York, N.Y. HYDROPHILE OPEN-CELL MICROPOROUS MEMBRANE, THEIR PRODUCTION AND USE
US4346142A (en) 1979-09-04 1982-08-24 Celanese Corporation Hydrophilic monomer treated microporous films and process
US5942120A (en) * 1997-12-04 1999-08-24 Wilkinson; Kenneth Composite microporous ultrafiltration membrane, method of making thereof, and separation methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087388A (en) * 1976-10-21 1978-05-02 E. I. Du Pont De Nemours And Company Process of preparing a permselective membrane
JPS5924732A (en) * 1982-08-02 1984-02-08 Mitsubishi Rayon Co Ltd Hydrophilic porous membrane and its production
EP0175322B1 (en) * 1984-09-17 1989-12-27 Mitsubishi Rayon Co., Ltd. Hydrophilized membrane of porous hydrophobic material and process for preparing the same
JPH038421A (en) * 1989-06-05 1991-01-16 Terumo Corp Hydrophilic porous membrane and production thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346142A (en) 1979-09-04 1982-08-24 Celanese Corporation Hydrophilic monomer treated microporous films and process
DE3130069A1 (en) * 1980-07-31 1982-03-04 Celanese Corp., 10036 New York, N.Y. HYDROPHILE OPEN-CELL MICROPOROUS MEMBRANE, THEIR PRODUCTION AND USE
US5942120A (en) * 1997-12-04 1999-08-24 Wilkinson; Kenneth Composite microporous ultrafiltration membrane, method of making thereof, and separation methods

Also Published As

Publication number Publication date
GB1347174A (en) 1974-02-27
DE2201192A1 (en) 1972-08-03
FR2121818B1 (en) 1975-10-24
FR2121818A1 (en) 1972-08-25

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