ES451621A1 - Procedimiento para disociar poliuretanos celulares y no ce- lulares. - Google Patents
Procedimiento para disociar poliuretanos celulares y no ce- lulares.Info
- Publication number
- ES451621A1 ES451621A1 ES451621A ES451621A ES451621A1 ES 451621 A1 ES451621 A1 ES 451621A1 ES 451621 A ES451621 A ES 451621A ES 451621 A ES451621 A ES 451621A ES 451621 A1 ES451621 A1 ES 451621A1
- Authority
- ES
- Spain
- Prior art keywords
- splitting
- activated
- polyurethane waste
- polyhydroxyl compounds
- polyurethane
- 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
-
- 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
- C08J11/18—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 organic material
- C08J11/28—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 organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
-
- 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)
- 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 |
---|---|---|---|
DE2542022A DE2542022C2 (de) | 1975-09-20 | 1975-09-20 | Verfahren zur Herstellung von aktivierten, zur Herstellung von Polyurethankunststoffen wiederverwendbaren Polyhydroxylverbindungen |
Publications (1)
Publication Number | Publication Date |
---|---|
ES451621A1 true ES451621A1 (es) | 1977-08-01 |
Family
ID=5957001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES451621A Expired ES451621A1 (es) | 1975-09-20 | 1976-09-17 | Procedimiento para disociar poliuretanos celulares y no ce- lulares. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4115298A (es) |
JP (1) | JPS5239796A (es) |
BE (1) | BE846375A (es) |
DE (1) | DE2542022C2 (es) |
ES (1) | ES451621A1 (es) |
FR (1) | FR2324676A1 (es) |
GB (1) | GB1494170A (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2738572C3 (de) * | 1977-08-26 | 1979-11-29 | 7080 Aalen | Verfahren zum Herstellen polyolhaltiger Flüssigkeiten aus Polyurethanabfällen |
US4316992A (en) * | 1981-02-23 | 1982-02-23 | Ford Motor Company | Process for polyol recovery from polyurethane foam comprising alcohol and steam hydrolysis |
US4317939A (en) * | 1981-02-23 | 1982-03-02 | Ford Motor Company | Catalyzed dissolution-hydrolysis of polyurethane wastes |
US4336406A (en) * | 1981-02-24 | 1982-06-22 | Ford Motor Company | Polyol extraction by high boiling alkanes |
US4451583A (en) * | 1982-01-26 | 1984-05-29 | Olin Corporation | Recycling of flexible polyurethane foam scrap |
DE60102049T2 (de) * | 2000-09-28 | 2004-07-22 | Kabushiki Kaisha Toshiba | Verfahren zur Zersetzung eines hitzehärtbaren Harzes, Vorrichtung und Wärmesteuerprogramm |
JP2004002564A (ja) * | 2002-05-31 | 2004-01-08 | Toshiba Corp | ウレタン樹脂の処理方法、被処理物及び再生樹脂の製造方法 |
KR101207370B1 (ko) | 2011-09-01 | 2012-12-04 | 정우화인 주식회사 | 연질 폴리우레탄 폼 스크랩을 이용한 고강성 폴리우레탄 탄성체 및 그 제조 방법 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2917471A (en) * | 1954-04-05 | 1959-12-15 | Du Pont | Peptization process for polyurethanes |
LU34069A1 (es) * | 1955-06-27 | |||
US3632530A (en) * | 1967-03-04 | 1972-01-04 | Yokohama Rubber Co Ltd | Process for decomposition of a polyurethane resin |
DE2062289C2 (de) * | 1970-12-17 | 1982-12-30 | Bayer Ag, 5090 Leverkusen | Verwendung von extrem niederviskosen Addukten aus Lactamen mit Wasser bzw. Oximen |
US3738946A (en) * | 1971-08-05 | 1973-06-12 | Upjohn Co | Conversion of scrap polyurethane foam to polyol |
US3708440A (en) * | 1972-02-14 | 1973-01-02 | Upjohn Co | Reclaiming scrap polyisocyanurate foam with an aliphatic diol and a dialkanolamine |
US3983087A (en) * | 1974-04-29 | 1976-09-28 | The Upjohn Company | Novel process of reclaiming polyurethane foam |
JPS5171381A (en) * | 1974-12-19 | 1976-06-21 | Bridgestone Tire Co Ltd | Horiuretanfuoomuno bunkaikaishuho |
-
1975
- 1975-09-20 DE DE2542022A patent/DE2542022C2/de not_active Expired
-
1976
- 1976-09-14 GB GB3799676A patent/GB1494170A/en not_active Expired
- 1976-09-16 US US05/723,872 patent/US4115298A/en not_active Expired - Lifetime
- 1976-09-17 JP JP11091076A patent/JPS5239796A/ja active Pending
- 1976-09-17 ES ES451621A patent/ES451621A1/es not_active Expired
- 1976-09-20 FR FR7628215A patent/FR2324676A1/fr active Granted
- 1976-09-20 BE BE170768A patent/BE846375A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2542022C2 (de) | 1982-10-14 |
BE846375A (fr) | 1977-03-21 |
US4115298A (en) | 1978-09-19 |
FR2324676A1 (fr) | 1977-04-15 |
FR2324676B1 (es) | 1979-06-22 |
DE2542022A1 (de) | 1977-03-24 |
GB1494170A (en) | 1977-12-07 |
JPS5239796A (en) | 1977-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19840428 |