DE2632007C2 - Verfahren zur Herstellung eines biologisch abbaubaren vernetzten Polyurethanschaums - Google Patents
Verfahren zur Herstellung eines biologisch abbaubaren vernetzten PolyurethanschaumsInfo
- Publication number
- DE2632007C2 DE2632007C2 DE2632007A DE2632007A DE2632007C2 DE 2632007 C2 DE2632007 C2 DE 2632007C2 DE 2632007 A DE2632007 A DE 2632007A DE 2632007 A DE2632007 A DE 2632007A DE 2632007 C2 DE2632007 C2 DE 2632007C2
- Authority
- DE
- Germany
- Prior art keywords
- water
- foam
- reaction product
- polyurethane foam
- isocyanate groups
- 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
Links
Classifications
-
- 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
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3221—Polyhydroxy compounds hydroxylated esters of carboxylic acids other than higher fatty acids
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4283—Hydroxycarboxylic acid or ester
-
- 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
- C08G18/4887—Polyethers containing carboxylic ester groups derived from carboxylic acids other than acids of higher fatty oils or other than resin acids
-
- 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
- C08G18/4891—Polyethers modified with higher fatty oils or their acids or by resin acids
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- 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
- C08G2230/00—Compositions for preparing biodegradable polymers
Description
wassermdex - Aquivalent NCO x 100
4,4'-Methylen-bis-(phenylisocyanat),
4,4'-Sulfonyi-bis-(phenylisocyanat),
4,4'-Methylen-bis-(o-toluylisocyanat),
Ethylendiisocyanat und Trimethylendiisocyanat.
keine Veränderung.
drei Monau in einen Komposthaufen eingearbeitet. Bei
der Entfernung aus dem Komposthaufen hatte der 40
Schaum begonnen, auseinanderzubrechen. Er konnte
nicht gewaschen werden, ohne auseinanderzufallen.
dann mit einem Schaum verglichen, der in gleicher Weise mit Trünethylofpropan anstelle /on Trimethylolpro- 45
pantrilactat hergestellt worden war. Der Schaum auf
Trimethylolpropanlactatbasis wurde nach 10 Minuten
bei 121° C klebrig und begann sich zu zersetzen. Der
Schaum auf Trimethylcspropanbasis zeigte nach 20 Minuten bei 121 ° C keine Veränderung. 50
Schaum auf der Basis von Trimethylolpropantrilactat
nach 240 Minuten zu einem Auseinanderbrechen in viskose Klumpen, wobei der Schaum nach 30 Minuten 55
klebrig geworden war. Der Schaum auf der Basis von
Trimethylolpropan zeigte nach 240 Minuten bei 100°C
keine Veränderung.
Dann ließ man den gebildeten Schaum eine Woche mit
synthetischem Faulschlamm reagieren. Der Schaum auf 65
Trimethylolpropantrilüi.'iatbasis hatte sich vollständig
aufgelöst, während der Standard-Polyurelhanschaum
noch intakt war.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59725875A | 1975-07-18 | 1975-07-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2632007A1 DE2632007A1 (de) | 1977-02-03 |
DE2632007C2 true DE2632007C2 (de) | 1986-03-13 |
Family
ID=24390760
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2632007A Expired DE2632007C2 (de) | 1975-07-18 | 1976-07-16 | Verfahren zur Herstellung eines biologisch abbaubaren vernetzten Polyurethanschaums |
DE2660694A Expired DE2660694C2 (de) | 1975-07-18 | 1976-07-16 | Umsetzungsprodukt mit endständigen Isocyanatgruppen |
DE2660695A Expired DE2660695C2 (de) | 1975-07-18 | 1976-07-16 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2660694A Expired DE2660694C2 (de) | 1975-07-18 | 1976-07-16 | Umsetzungsprodukt mit endständigen Isocyanatgruppen |
DE2660695A Expired DE2660695C2 (de) | 1975-07-18 | 1976-07-16 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6016450B2 (de) |
CA (1) | CA1087800A (de) |
DE (3) | DE2632007C2 (de) |
FR (1) | FR2318183A1 (de) |
GB (1) | GB1517826A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1605082A (en) * | 1977-06-27 | 1981-12-16 | Vorhauer Lab | Sponge-like structure |
JPS6374675A (ja) * | 1986-09-18 | 1988-04-05 | Hitachi Electronics Eng Co Ltd | プリンタ用紙巻取り機構 |
DE19615356A1 (de) * | 1996-04-18 | 1997-10-23 | Bayer Ag | Kompostierbare und thermoplastisch verarbeitbare Schaumstoffe |
CN108355162B (zh) * | 2018-05-14 | 2021-07-23 | 江西省科学院应用化学研究所 | 一种抗菌亲水性聚氨酯泡沫医用敷料 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE950240C (de) * | 1952-12-16 | 1956-10-04 | Bayer Ag | Verfahren zur Herstellung hochmolekularer linearer Polyester |
US3809088A (en) * | 1972-07-17 | 1974-05-07 | Procter & Gamble | Hydrolytically unstable polyurethane cotamenial devices |
US3778390A (en) * | 1972-07-17 | 1973-12-11 | Procter & Gamble | Hydrolytically unstable polyurethane foams |
DE2456813A1 (de) * | 1974-11-30 | 1976-06-10 | Freudenberg Carl Fa | Hydrophiler schaumstoff auf polyurethanbasis |
-
1976
- 1976-03-03 CA CA247,028A patent/CA1087800A/en not_active Expired
- 1976-05-12 JP JP51053392A patent/JPS6016450B2/ja not_active Expired
- 1976-07-16 GB GB29756/76A patent/GB1517826A/en not_active Expired
- 1976-07-16 DE DE2632007A patent/DE2632007C2/de not_active Expired
- 1976-07-16 DE DE2660694A patent/DE2660694C2/de not_active Expired
- 1976-07-16 DE DE2660695A patent/DE2660695C2/de not_active Expired
- 1976-07-16 FR FR7621874A patent/FR2318183A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2318183A1 (fr) | 1977-02-11 |
GB1517826A (en) | 1978-07-12 |
JPS6016450B2 (ja) | 1985-04-25 |
DE2632007A1 (de) | 1977-02-03 |
DE2660695C2 (de) | 1989-06-15 |
CA1087800A (en) | 1980-10-14 |
FR2318183B1 (de) | 1981-11-20 |
DE2660694C2 (de) | 1986-03-13 |
JPS5212300A (en) | 1977-01-29 |
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Legal Events
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OD | Request for examination | ||
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D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: W.R. GRACE & CO.-CONN., NEW YORK, N.Y., US |
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8328 | Change in the person/name/address of the agent |
Free format text: FRHR. VON UEXKUELL, J., DIPL.-CHEM. DR.RER.NAT. GRAF ZU STOLBERG-WERNIGERODE, U., DIPL.-CHEM. DR.RER.NAT. SUCHANTKE, J., DIPL.-ING. HUBER, A., DIPL.-ING. VON KAMEKE, A., DIPL.-CHEM. DR.RER.NAT. VOELKER, I., DIPL.-BIOL. FRANCK, P., DIPL.-CHEM.ETH DR.SC.TECHN., PAT.-ANWAELTE, 2000 HAMBURG |
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Free format text: STOLBERG-WERNIGERODE, GRAF ZU, U., DIPL.-CHEM. DR.RER.NAT. SUCHANTKE, J., DIPL.-ING. HUBER, A., DIPL.-ING. KAMEKE, VON, A., DIPL.-CHEM. DR.RER.NAT. VOELKER, I., DIPL.-BIOL. FRANCK, P., DIPL.-CHEM.ETH DR.SC.TECHN., PAT.-ANWAELTE, 2000 HAMBURG |
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8339 | Ceased/non-payment of the annual fee |