GB1456252A - - Google Patents
Info
- Publication number
- GB1456252A GB1456252A GB5302573A GB5302573A GB1456252A GB 1456252 A GB1456252 A GB 1456252A GB 5302573 A GB5302573 A GB 5302573A GB 5302573 A GB5302573 A GB 5302573A GB 1456252 A GB1456252 A GB 1456252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyurethane
- hydrolysis
- hydrolysing
- fluidized bed
- hydrolysis zone
- 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
- 230000007062 hydrolysis Effects 0.000 abstract 10
- 238000006460 hydrolysis reaction Methods 0.000 abstract 10
- 229920005830 Polyurethane Foam Polymers 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 4
- 230000003301 hydrolyzing effect Effects 0.000 abstract 4
- 229920002635 polyurethane Polymers 0.000 abstract 4
- 239000004814 polyurethane Substances 0.000 abstract 4
- 239000011496 polyurethane foam Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 150000004985 diamines Chemical class 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 125000005442 diisocyanate group Chemical group 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 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)
- Polyurethanes Or Polyureas (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31597772A | 1972-12-18 | 1972-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1456252A true GB1456252A (enrdf_load_stackoverflow) | 1976-11-24 |
Family
ID=23226933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5302573A Expired GB1456252A (enrdf_load_stackoverflow) | 1972-12-18 | 1973-11-15 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5319039B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1018537A (enrdf_load_stackoverflow) |
| DE (1) | DE2362919A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2210494B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1456252A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357255A (en) | 1980-09-04 | 1982-11-02 | Bayer Aktiengesellschaft | Process for the preparation of liquid mixtures of compounds having isocyanate groups |
| EP3784724A1 (fr) * | 2018-04-27 | 2021-03-03 | Arkema France | Valorisation de resine (meth)acrylique par depolymerisation et hydrolyse |
| GB2616488A (en) * | 2022-09-02 | 2023-09-13 | Sru Innovations Ltd | Steam treatment of waste |
Families Citing this family (3)
| 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 |
| DE2862318D1 (en) * | 1978-11-29 | 1983-10-20 | Ford Motor Co | Hydrolysis of polyurethanes |
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 CA181,391A patent/CA1018537A/en not_active Expired
- 1973-11-15 GB GB5302573A patent/GB1456252A/en not_active Expired
- 1973-12-12 FR FR7344393A patent/FR2210494B1/fr not_active Expired
- 1973-12-18 JP JP14041473A patent/JPS5319039B2/ja not_active Expired
- 1973-12-18 DE DE2362919A patent/DE2362919A1/de active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357255A (en) | 1980-09-04 | 1982-11-02 | Bayer Aktiengesellschaft | Process for the preparation of liquid mixtures of compounds having isocyanate groups |
| EP3784724A1 (fr) * | 2018-04-27 | 2021-03-03 | Arkema France | Valorisation de resine (meth)acrylique par depolymerisation et hydrolyse |
| GB2616488A (en) * | 2022-09-02 | 2023-09-13 | Sru Innovations Ltd | Steam treatment of waste |
| GB2616488B (en) * | 2022-09-02 | 2024-11-06 | Sru Innovations Ltd | Steam treatment of waste |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2210494B1 (enrdf_load_stackoverflow) | 1977-08-19 |
| DE2362919A1 (de) | 1974-07-11 |
| JPS4989778A (enrdf_load_stackoverflow) | 1974-08-27 |
| JPS5319039B2 (enrdf_load_stackoverflow) | 1978-06-19 |
| FR2210494A1 (enrdf_load_stackoverflow) | 1974-07-12 |
| CA1018537A (en) | 1977-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2284292A1 (en) | Methods for the production of ammonia from urea and uses thereof | |
| EP0138789A3 (en) | Method for heat treatment of articles and arrangement for carrying out the method | |
| GB1456252A (enrdf_load_stackoverflow) | ||
| ES450585A1 (es) | Procedimiento continuo para separar gases acidos. | |
| EP0145912A3 (en) | Production of acetylene from coal | |
| GB1446140A (en) | Process for the treatment of a foodstuff | |
| GB1455454A (en) | Hydrolysis of polyurethane foam | |
| GB1129787A (en) | Process for the production of urea | |
| DE59300442D1 (de) | Verfahren zur kontinuierlichen Steuerung der Zellenzahl von Polyurethan-Schaumstoffen. | |
| GB1458448A (en) | Gas-preparation process | |
| IE39437B1 (en) | Process for preparing urea from ammonia and carbon dioxide | |
| GB1039888A (en) | A method for producing gaseous and calcined products by the thermal decomposition of particulate raw materials | |
| ZA915603B (en) | Process for the treatment of gases, ellipsoidal packing and use thereof. | |
| AU629957B2 (en) | Lightweight fexible imide foam and method of producing same | |
| US3632479A (en) | Treatment of coal to prevent agglomeration | |
| IE901398L (en) | Process for the production of cholesterol-reduced butterfat¹or butter, butter(fat), and plant for the production thereof | |
| GB1420293A (en) | Process for the production of foam resins | |
| ES379486A1 (es) | Un procedimiento para la preparacion de derivados de metanoclorofluorados. | |
| GB1430215A (en) | Production of sulphur foams | |
| US68321A (en) | n s t e y e n s | |
| GB898379A (en) | Improvements in and relating to the stabilization of polypropylene glycols | |
| ES452939A1 (es) | Procedimiento continuo de fabricacion de acido fosforico porvia humeda. | |
| GB1515509A (en) | Quick freezing of foods | |
| HUT41062A (en) | Process for preparing liquid and gaseous product, as well as semi-coke from carbon | |
| GB1285083A (en) | Regenerative plant for waste pickle liquor |
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 |