GB1455454A - Hydrolysis of polyurethane foam - Google Patents
Hydrolysis of polyurethane foamInfo
- Publication number
- GB1455454A GB1455454A GB5271273A GB5271273A GB1455454A GB 1455454 A GB1455454 A GB 1455454A GB 5271273 A GB5271273 A GB 5271273A GB 5271273 A GB5271273 A GB 5271273A GB 1455454 A GB1455454 A GB 1455454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyurethane foam
- reaction zone
- water
- hydrolysed
- diamines
- 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
- 229920005830 Polyurethane Foam Polymers 0.000 title abstract 7
- 239000011496 polyurethane foam Substances 0.000 title abstract 7
- 230000007062 hydrolysis Effects 0.000 title abstract 3
- 238000006460 hydrolysis reaction Methods 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 150000004985 diamines Chemical class 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 125000005442 diisocyanate group Chemical group 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920000570 polyether Polymers 0.000 abstract 1
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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31597972A | 1972-12-18 | 1972-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1455454A true GB1455454A (en) | 1976-11-10 |
Family
ID=23226942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5271273A Expired GB1455454A (en) | 1972-12-18 | 1973-11-13 | Hydrolysis of polyurethane foam |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4990377A (enrdf_load_html_response) |
| CA (1) | CA1016955A (enrdf_load_html_response) |
| DE (1) | DE2362921A1 (enrdf_load_html_response) |
| FR (1) | FR2210493B1 (enrdf_load_html_response) |
| GB (1) | GB1455454A (enrdf_load_html_response) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281197A (en) * | 1979-06-18 | 1981-07-28 | Ford Motor Company | Hydrolytic decomposition method |
| US4357255A (en) | 1980-09-04 | 1982-11-02 | Bayer Aktiengesellschaft | Process for the preparation of liquid mixtures of compounds having isocyanate groups |
| WO2023275036A1 (de) * | 2021-07-02 | 2023-01-05 | Evonik Operations Gmbh | Gewinnung von di- und/oder polyisocyanaten aus pu-depolymerisationsprozessen |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442387C3 (de) * | 1974-09-04 | 1981-09-10 | Bayer Ag, 5090 Leverkusen | Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen |
| DE2711145A1 (de) | 1977-03-15 | 1978-09-21 | Bayer Ag | Verfahren zur spaltung von polyurethankunststoffen |
| GB1602676A (en) * | 1977-07-18 | 1981-11-11 | Ford Motor Co | Hydrolysis of polyurethane foams |
| GB1601787A (en) * | 1977-08-22 | 1981-11-04 | Ford Motor Co | Hydrolytic decomposition method and apparatus |
| DE4323558C2 (de) * | 1993-07-14 | 2001-02-15 | Gore & Ass | Verfahren zur Isolierung und Wiederverwertung von Textilmaterialien aus polyurethanverklebten Textilverbundlaminaten |
| EP0976719B1 (en) | 1997-02-05 | 2005-01-05 | Kabushiki Kaisha Kobe Seiko Sho | Apparatus and method for decomposing and recovering isocyanate compound |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3225094A (en) * | 1962-06-15 | 1965-12-21 | Du Pont | Preparation of polyamines by steam hydrolysis of polyisocyanate reaction products |
-
1973
- 1973-09-18 CA CA181,365A patent/CA1016955A/en not_active Expired
- 1973-11-13 GB GB5271273A patent/GB1455454A/en not_active Expired
- 1973-12-11 FR FR7344218A patent/FR2210493B1/fr not_active Expired
- 1973-12-18 JP JP14041673A patent/JPS4990377A/ja active Pending
- 1973-12-18 DE DE2362921A patent/DE2362921A1/de active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281197A (en) * | 1979-06-18 | 1981-07-28 | Ford Motor Company | Hydrolytic decomposition method |
| US4357255A (en) | 1980-09-04 | 1982-11-02 | Bayer Aktiengesellschaft | Process for the preparation of liquid mixtures of compounds having isocyanate groups |
| WO2023275036A1 (de) * | 2021-07-02 | 2023-01-05 | Evonik Operations Gmbh | Gewinnung von di- und/oder polyisocyanaten aus pu-depolymerisationsprozessen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2210493B1 (enrdf_load_html_response) | 1976-10-08 |
| CA1016955A (en) | 1977-09-06 |
| JPS4990377A (enrdf_load_html_response) | 1974-08-29 |
| DE2362921A1 (de) | 1974-07-11 |
| FR2210493A1 (enrdf_load_html_response) | 1974-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |