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 polyurethanneInfo
- 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
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)
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 (xx) |
DE (1) | DE2025616C3 (xx) |
FR (1) | FR2090310A1 (xx) |
GB (1) | GB1345763A (xx) |
NL (1) | NL7107263A (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0052936A1 (en) * | 1980-11-07 | 1982-06-02 | Exxon Research And Engineering Company | Microcellular structures and process for their preparation |
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 |
-
1970
- 1970-05-26 DE DE19702025616 patent/DE2025616C3/de not_active Expired
-
1971
- 1971-05-10 GB GB1393371A patent/GB1345763A/en not_active Expired
- 1971-05-25 BE BE767649A patent/BE767649A/xx unknown
- 1971-05-26 FR FR7119141A patent/FR2090310A1/fr active Pending
- 1971-05-26 NL NL7107263A patent/NL7107263A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2090310A1 (xx) | 1972-01-14 |
DE2025616A1 (de) | 1971-12-09 |
DE2025616C3 (de) | 1974-11-14 |
GB1345763A (en) | 1974-02-06 |
DE2025616B2 (de) | 1974-02-07 |
NL7107263A (xx) | 1971-11-30 |
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