DE2660694C2 - Umsetzungsprodukt mit endständigen Isocyanatgruppen - Google Patents
Umsetzungsprodukt mit endständigen IsocyanatgruppenInfo
- Publication number
- DE2660694C2 DE2660694C2 DE2660694A DE2660694A DE2660694C2 DE 2660694 C2 DE2660694 C2 DE 2660694C2 DE 2660694 A DE2660694 A DE 2660694A DE 2660694 A DE2660694 A DE 2660694A DE 2660694 C2 DE2660694 C2 DE 2660694C2
- Authority
- DE
- Germany
- Prior art keywords
- water
- reaction product
- foam
- isocyanate groups
- trimethylolpropane
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Polyurethanes Or Polyureas (AREA)
- Biological Depolymerization Polymers (AREA)
- Materials For Medical Uses (AREA)
Description
Falls gewünscht, können auch Gemische aus einem oder mehreren der genannten Polyisocyanate angewandt werden. Besonders bevorzugte aromatische Diisocyanate und Polyisocyanate bzw. deren Gemische sind die im Handel erhältlichen, die preisgünstig sind und hohe Reaktionsfähigkeit besitzen.
Obgleich die Verschäumung des Umsetzungsprodukts mit endständigen Isocyanatgruppen allein durch die Zugabe des Wassers bewirkt wird, ist es auch möglich, jedoch nicht notwendig, dem Wasser die Verschäumung unterstützende Materialien zuzusetzen, wie sie in der Technik bekannt sind.
Veränderung.
Claims (1)
- Patentanspruch:Umsetzungsprodukt mit endständigen Isocyanatgruppen, erhältlich durch Umsetzung eines Gemisches aus einem Polyoxyethylenpolyol mit einem gewichtsmäßigen mittleren Molekulargewicht von 200 bis 4000 mit Trimethylolpropantrilactat oder Trimethylolpropantriglykolat mit überschüssigem Polyisocvanat.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59725875A | 1975-07-18 | 1975-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2660694C2 true DE2660694C2 (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 Before (1)
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 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778390A (en) * | 1972-07-17 | 1973-12-11 | Procter & Gamble | Hydrolytically unstable polyurethane foams |
Family Cites Families (3)
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 |
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 FR FR7621874A patent/FR2318183A1/fr active Granted
- 1976-07-16 DE DE2632007A patent/DE2632007C2/de not_active Expired
- 1976-07-16 GB GB29756/76A patent/GB1517826A/en 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
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778390A (en) * | 1972-07-17 | 1973-12-11 | Procter & Gamble | Hydrolytically unstable polyurethane foams |
Also Published As
Publication number | Publication date |
---|---|
DE2632007A1 (de) | 1977-02-03 |
DE2660695C2 (de) | 1989-06-15 |
JPS5212300A (en) | 1977-01-29 |
CA1087800A (en) | 1980-10-14 |
GB1517826A (en) | 1978-07-12 |
JPS6016450B2 (ja) | 1985-04-25 |
FR2318183A1 (fr) | 1977-02-11 |
FR2318183B1 (de) | 1981-11-20 |
DE2632007C2 (de) | 1986-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AC | Divided out of |
Ref country code: DE Ref document number: 2632007 Format of ref document f/p: P |
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Q172 | Divided out of (supplement): |
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8110 | Request for examination paragraph 44 | ||
8181 | Inventor (new situation) |
Free format text: MARANS, SAMUEL NELSON, 20904 SILVER SPRING, MD., US POLLACK, ALLAN RICKY, 20034 BETHESDA, MD., US |
|
AC | Divided out of |
Ref country code: DE Ref document number: 2632007 Format of ref document f/p: P |
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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 |
|
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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8339 | Ceased/non-payment of the annual fee |