IL30273A - Process for the production of microporous films,membranes or similar sheets of high polymers and products obtained thereby - Google Patents

Process for the production of microporous films,membranes or similar sheets of high polymers and products obtained thereby

Info

Publication number
IL30273A
IL30273A IL30273A IL3027368A IL30273A IL 30273 A IL30273 A IL 30273A IL 30273 A IL30273 A IL 30273A IL 3027368 A IL3027368 A IL 3027368A IL 30273 A IL30273 A IL 30273A
Authority
IL
Israel
Prior art keywords
film
water
process according
polymer
solvent
Prior art date
Application number
IL30273A
Other languages
English (en)
Other versions
IL30273A0 (en
Original Assignee
Crylor
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 Crylor filed Critical Crylor
Publication of IL30273A0 publication Critical patent/IL30273A0/xx
Publication of IL30273A publication Critical patent/IL30273A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0095Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42Polymers of nitriles, e.g. polyacrylonitrile
    • B01D71/421Polyacrylonitrile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/54Polyureas; Polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/202Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising elimination of a solid or a liquid ingredient
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D06N3/0052Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by leaching out of a compound, e.g. water soluble salts, fibres or fillers; obtained by freezing or sublimation; obtained by eliminating drops of sublimable fluid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/048Elimination of a frozen liquid phase
    • C08J2201/0484Elimination of a frozen liquid phase the liquid phase being aqueous
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/05Elimination by evaporation or heat degradation of a liquid phase
    • C08J2201/0502Elimination by evaporation or heat degradation of a liquid phase the liquid phase being organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IL30273A 1967-06-30 1968-06-28 Process for the production of microporous films,membranes or similar sheets of high polymers and products obtained thereby IL30273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR112715 1967-06-30

Publications (2)

Publication Number Publication Date
IL30273A0 IL30273A0 (en) 1968-08-22
IL30273A true IL30273A (en) 1972-10-29

Family

ID=8634260

Family Applications (1)

Application Number Title Priority Date Filing Date
IL30273A IL30273A (en) 1967-06-30 1968-06-28 Process for the production of microporous films,membranes or similar sheets of high polymers and products obtained thereby

Country Status (9)

Country Link
BE (1) BE717380A (nl)
BR (1) BR6800115D0 (nl)
CH (1) CH486525A (nl)
DE (1) DE1779010C3 (nl)
ES (1) ES355565A1 (nl)
FR (1) FR1551885A (nl)
GB (1) GB1212726A (nl)
IL (1) IL30273A (nl)
NL (1) NL142716B (nl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD100484A1 (nl) * 1971-12-24 1973-09-20
JPS5856378B2 (ja) * 1976-09-08 1983-12-14 旭化成株式会社 アクリロニトリル系重合体乾燥膜およびその製造法
DE2918027C2 (de) * 1979-05-04 1986-05-28 Akzo Gmbh, 5600 Wuppertal Ultrafiltrationsmembranen aus linearen Polyurethanen
CN101422669B (zh) * 2008-11-26 2012-02-08 南昌大学 一种亲水性高分子微孔过滤材料的制备方法
CN113768081B (zh) * 2021-09-14 2023-08-25 金腰燕(广州)食品有限公司 去除燕窝中亚硝酸盐的方法

Also Published As

Publication number Publication date
BE717380A (nl) 1968-12-30
IL30273A0 (en) 1968-08-22
NL6808786A (nl) 1968-12-31
ES355565A1 (es) 1969-12-16
CH486525A (fr) 1970-02-28
DE1779010A1 (de) 1971-11-18
NL142716B (nl) 1974-07-15
FR1551885A (nl) 1969-01-03
GB1212726A (en) 1970-11-18
BR6800115D0 (pt) 1973-01-04
DE1779010C3 (de) 1978-10-26
DE1779010B2 (de) 1978-02-23

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