BE767649A - Procede de preparation de structures en feuilles microporeuses par coagulation de solutions de polyurethanne - Google Patents

Procede de preparation de structures en feuilles microporeuses par coagulation de solutions de polyurethanne

Info

Publication number
BE767649A
BE767649A BE767649A BE767649A BE767649A BE 767649 A BE767649 A BE 767649A BE 767649 A BE767649 A BE 767649A BE 767649 A BE767649 A BE 767649A BE 767649 A BE767649 A BE 767649A
Authority
BE
Belgium
Prior art keywords
coagulation
polyurethane solutions
microporous sheets
preparing structures
preparing
Prior art date
Application number
BE767649A
Other languages
English (en)
French (fr)
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of BE767649A publication Critical patent/BE767649A/xx

Links

Classifications

    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
    • C08G18/0814—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
BE767649A 1970-05-26 1971-05-25 Procede de preparation de structures en feuilles microporeuses par coagulation de solutions de polyurethanne BE767649A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702025616 DE2025616C3 (de) 1970-05-26 1970-05-26 Verfahren zur Herstellung mikroporöser Flächengebilde durch Koagulation von Polyurethanlösungen

Publications (1)

Publication Number Publication Date
BE767649A true BE767649A (fr) 1971-10-18

Family

ID=5772107

Family Applications (1)

Application Number Title Priority Date Filing Date
BE767649A BE767649A (fr) 1970-05-26 1971-05-25 Procede de preparation de structures en feuilles microporeuses par coagulation de solutions de polyurethanne

Country Status (5)

Country Link
BE (1) BE767649A (de)
DE (1) DE2025616C3 (de)
FR (1) FR2090310A1 (de)
GB (1) GB1345763A (de)
NL (1) NL7107263A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052936A1 (de) * 1980-11-07 1982-06-02 Exxon Research And Engineering Company Mikrozellulare Strukturen und Verfahren zu ihrer Herstellung
CA1314667C (en) * 1986-05-30 1993-03-23 Hajime Itoh Process for producing porous membranes
DE102006016638A1 (de) * 2006-04-08 2007-10-11 Bayer Materialscience Ag Mikroporöse Beschichtung auf Basis von Polyurethan-Polyharnstoff

Also Published As

Publication number Publication date
FR2090310A1 (de) 1972-01-14
DE2025616A1 (de) 1971-12-09
DE2025616C3 (de) 1974-11-14
GB1345763A (en) 1974-02-06
DE2025616B2 (de) 1974-02-07
NL7107263A (de) 1971-11-30

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