IT1147053B - Procedimento per la produzione di membrane per ultrafiltrazione costituite da poliuretani lineari e prodotto ottenuto - Google Patents
Procedimento per la produzione di membrane per ultrafiltrazione costituite da poliuretani lineari e prodotto ottenutoInfo
- Publication number
- IT1147053B IT1147053B IT48528/80A IT4852880A IT1147053B IT 1147053 B IT1147053 B IT 1147053B IT 48528/80 A IT48528/80 A IT 48528/80A IT 4852880 A IT4852880 A IT 4852880A IT 1147053 B IT1147053 B IT 1147053B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- production
- product obtained
- ultrafiltration membranes
- linear polyurethane
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/54—Polyureas; Polyurethanes
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2918027A DE2918027C2 (de) | 1979-05-04 | 1979-05-04 | Ultrafiltrationsmembranen aus linearen Polyurethanen |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8048528A0 IT8048528A0 (it) | 1980-04-28 |
IT1147053B true IT1147053B (it) | 1986-11-19 |
Family
ID=6069940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48528/80A IT1147053B (it) | 1979-05-04 | 1980-04-28 | Procedimento per la produzione di membrane per ultrafiltrazione costituite da poliuretani lineari e prodotto ottenuto |
Country Status (16)
Country | Link |
---|---|
US (1) | US4332686A (it) |
JP (1) | JPS5857203B2 (it) |
AT (1) | AT379317B (it) |
AU (1) | AU538518B2 (it) |
BE (1) | BE883083A (it) |
CA (1) | CA1150457A (it) |
CH (1) | CH645816A5 (it) |
DE (1) | DE2918027C2 (it) |
ES (1) | ES491125A0 (it) |
FR (1) | FR2455475A1 (it) |
GB (1) | GB2049544B (it) |
IT (1) | IT1147053B (it) |
LU (1) | LU82412A1 (it) |
MX (1) | MX154033A (it) |
NL (1) | NL8002466A (it) |
ZA (1) | ZA802479B (it) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2087909B (en) * | 1980-11-22 | 1984-11-07 | Shirley Inst | Breathable non-porous polyurethane film |
JPS583604A (ja) * | 1981-06-25 | 1983-01-10 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | 選択透過膜及びその製造方法 |
DE3127464C2 (de) * | 1981-07-11 | 1986-10-30 | Akzo Gmbh, 5600 Wuppertal | Linear segmentierte Polyurethane und Verfahren zu deren Herstellung |
JPS60225622A (ja) * | 1984-04-23 | 1985-11-09 | Agency Of Ind Science & Technol | 炭酸ガス選択透過膜 |
DE3478088D1 (en) * | 1984-10-15 | 1989-06-15 | Shell Int Research | Process for producing dense membranes |
US4787976A (en) * | 1985-04-29 | 1988-11-29 | W. R. Grace & Co. | Non-adsorptive, semipermeable filtration membrane |
CA1320139C (en) * | 1985-12-06 | 1993-07-13 | Douglas Lyons Ford | Treatment of emulsions |
US4780211A (en) * | 1986-11-07 | 1988-10-25 | Desalination Systems, Inc. | Method of dewatering using PTFE membrane |
US4797214A (en) * | 1987-07-07 | 1989-01-10 | Vincent Saputo | Method of treatment of waste streams of oil/water emulsions or solutions |
DE3824359A1 (de) * | 1988-04-07 | 1989-10-19 | Bayer Ag | Verbundmembranen, verfahren zu ihrer herstellung und ihre verwendung |
DE3916210A1 (de) * | 1989-05-18 | 1990-12-06 | Bayer Ag | Verbundmembranen, verfahren zu ihrer herstellung und ihre verwendung |
US4946939A (en) * | 1989-05-30 | 1990-08-07 | The Dow Chemical Company | High purity polyether polyols |
US5047495A (en) * | 1989-08-28 | 1991-09-10 | The G. F. Goodrich Company | Polyurethane for flexible fuel containers |
US5574104A (en) * | 1990-01-05 | 1996-11-12 | The B. F. Goodrich Company | Chain extended low molecular weight polyoxiranes and electrostatic dissipating blend compositions based thereon |
US5207917A (en) * | 1991-10-08 | 1993-05-04 | Weaver Thomas J M | Recycling and recovery of aqueous cleaner solutions |
JP3857306B2 (ja) * | 1992-04-24 | 2006-12-13 | ザ ポリマー テクノロジー グループ,インコーポレイティド | 所定分子量レンジの分子を透過させるためのコポリマー及びそれらの非細孔性,半透過性膜並びにその使用 |
FR2692164B1 (fr) * | 1992-06-16 | 1994-11-10 | Elf Antar France | Procédé d'ultrafiltration d'émulsions stabilisées. |
DK0590769T3 (da) * | 1992-09-30 | 1999-01-18 | Baker Hughes Inc | Fremgangsmåde til fjernelse af vandopløselige organiske materialer fra olieprocesvand |
US5269934A (en) * | 1992-10-06 | 1993-12-14 | Chevron Research And Technology Company | Removal of oily residues from aqueous waste streams |
AUPO251096A0 (en) | 1996-09-23 | 1996-10-17 | Cardiac Crc Nominees Pty Limited | Polysiloxane-containing polyurethane elastomeric compositions |
US6294093B1 (en) * | 1998-09-04 | 2001-09-25 | Nalco/Exxon Energy Chemicals, L.P. | Aqueous dispersion of an oil soluble demulsifier for breaking crude oil emulsions |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE673744A (it) * | 1964-12-14 | |||
FR1551885A (it) * | 1967-06-30 | 1969-01-03 | ||
US3615024A (en) * | 1968-08-26 | 1971-10-26 | Amicon Corp | High flow membrane |
DE2165073A1 (de) * | 1971-12-28 | 1973-07-12 | Sartorius Membranfilter Gmbh | Mehrschichten-filtermembrane, verfahren zu deren herstellung und deren verwendung |
US3822238A (en) * | 1972-08-02 | 1974-07-02 | Princeton Polymer Lab | Hydrophilic polyurethane polymers |
US3776970A (en) * | 1972-12-14 | 1973-12-04 | Monsanto Co | Process for the separation of styrene from ethylbenzene |
DE2409789C3 (de) * | 1974-03-01 | 1981-08-20 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur Herstellung von Polyurethanlösungen sowie deren Anwendung |
FR2288477A1 (fr) * | 1974-10-22 | 1976-05-21 | Manche Union Coop Agr Laiti | Procede de production d'acide sialique et de glycoproteines a partir de lactoserum de fromagerie |
DE2460835C2 (de) * | 1974-12-21 | 1982-11-18 | Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück | Verfahren zur Herstellung von Filtermaterial |
US4148734A (en) * | 1974-12-21 | 1979-04-10 | Chemie-Anlagenbau Bischofsheim Gmbh | Filter material and process for producing same |
DE2627629C3 (de) * | 1976-06-19 | 1979-12-20 | Bayer Ag, 5090 Leverkusen | Verfahren zur Abtrennung von aromatischen* Kohlenwasserstoffen aus Gemischen mit anderen organischen Verbindungen mit Hilfe von Kunststoffmembranen |
-
1979
- 1979-05-04 DE DE2918027A patent/DE2918027C2/de not_active Expired
-
1980
- 1980-04-14 CH CH283780A patent/CH645816A5/de not_active IP Right Cessation
- 1980-04-23 MX MX182073A patent/MX154033A/es unknown
- 1980-04-24 AT AT0222380A patent/AT379317B/de not_active IP Right Cessation
- 1980-04-24 AU AU57776/80A patent/AU538518B2/en not_active Ceased
- 1980-04-24 ZA ZA00802479A patent/ZA802479B/xx unknown
- 1980-04-25 GB GB8013832A patent/GB2049544B/en not_active Expired
- 1980-04-28 FR FR8009523A patent/FR2455475A1/fr active Granted
- 1980-04-28 IT IT48528/80A patent/IT1147053B/it active
- 1980-04-28 NL NL8002466A patent/NL8002466A/nl not_active Application Discontinuation
- 1980-04-29 LU LU82412A patent/LU82412A1/de unknown
- 1980-04-30 US US06/145,767 patent/US4332686A/en not_active Expired - Lifetime
- 1980-04-30 CA CA000350976A patent/CA1150457A/en not_active Expired
- 1980-05-02 BE BE0/200443A patent/BE883083A/fr not_active IP Right Cessation
- 1980-05-02 ES ES491125A patent/ES491125A0/es active Granted
- 1980-05-06 JP JP55059844A patent/JPS5857203B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55149613A (en) | 1980-11-21 |
DE2918027A1 (de) | 1980-11-13 |
FR2455475A1 (fr) | 1980-11-28 |
BE883083A (fr) | 1980-09-01 |
NL8002466A (nl) | 1980-11-06 |
LU82412A1 (de) | 1980-07-31 |
ZA802479B (en) | 1981-04-29 |
AU5777680A (en) | 1980-11-06 |
US4332686A (en) | 1982-06-01 |
AU538518B2 (en) | 1984-08-16 |
ATA222380A (de) | 1985-05-15 |
DE2918027C2 (de) | 1986-05-28 |
ES8100897A1 (es) | 1980-12-01 |
IT8048528A0 (it) | 1980-04-28 |
GB2049544A (en) | 1980-12-31 |
AT379317B (de) | 1985-12-27 |
CA1150457A (en) | 1983-07-26 |
CH645816A5 (de) | 1984-10-31 |
MX154033A (es) | 1987-04-08 |
GB2049544B (en) | 1982-11-24 |
JPS5857203B2 (ja) | 1983-12-19 |
ES491125A0 (es) | 1980-12-01 |
FR2455475B1 (it) | 1984-04-13 |
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