SG52641A1 - Polymerization and depolymerization of cyclic eithers using heterogeneous catalysts - Google Patents
Polymerization and depolymerization of cyclic eithers using heterogeneous catalystsInfo
- Publication number
- SG52641A1 SG52641A1 SG1996007260A SG1996007260A SG52641A1 SG 52641 A1 SG52641 A1 SG 52641A1 SG 1996007260 A SG1996007260 A SG 1996007260A SG 1996007260 A SG1996007260 A SG 1996007260A SG 52641 A1 SG52641 A1 SG 52641A1
- Authority
- SG
- Singapore
- Prior art keywords
- eithers
- depolymerization
- polymerization
- cyclic
- heterogeneous catalysts
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
- C07D307/08—Preparation of tetrahydrofuran
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/08—Saturated oxiranes
- C08G65/10—Saturated oxiranes characterised by the catalysts used
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/40—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
- C08G63/42—Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
- C08G63/56—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds other than from esters thereof
- C08G63/58—Cyclic ethers; Cyclic carbonates; Cyclic sulfites ; Cyclic orthoesters
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
- C08G63/6854—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6856—Dicarboxylic acids and dihydroxy compounds
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
- C08G65/20—Tetrahydrofuran
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/2645—Metals or compounds thereof, e.g. salts
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/2645—Metals or compounds thereof, e.g. salts
- C08G65/266—Metallic elements not covered by group C08G65/2648 - C08G65/2645, or compounds thereof
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/337—Polymers modified by chemical after-treatment with organic compounds containing other elements
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Polyethers (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9311993A | 1993-07-16 | 1993-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG52641A1 true SG52641A1 (en) | 1998-09-28 |
Family
ID=22237282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996007260A SG52641A1 (en) | 1993-07-16 | 1994-07-14 | Polymerization and depolymerization of cyclic eithers using heterogeneous catalysts |
Country Status (7)
Country | Link |
---|---|
EP (3) | EP0750000B1 (ko) |
JP (1) | JPH09500161A (ko) |
KR (2) | KR100323176B1 (ko) |
DE (3) | DE69424316T2 (ko) |
ES (2) | ES2139088T3 (ko) |
SG (1) | SG52641A1 (ko) |
WO (1) | WO1995002625A2 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19702787A1 (de) * | 1997-01-27 | 1998-07-30 | Bayer Ag | Verfahren zur Herstellung von Polyetherpolyolen |
DE19817676A1 (de) * | 1998-04-21 | 1999-10-28 | Bayer Ag | Verfahren zur aufarbeitungsfreien Herstellung langkettiger Polyetherpolyole |
WO2002070186A1 (fr) * | 2001-03-07 | 2002-09-12 | Honda Giken Kogyo Kabushiki Kaisha | Procede de liaison par frottement/brassage, materiau plat pour formage plastique et corps de type manchon a extremite fermee |
JP2008063391A (ja) * | 2006-09-05 | 2008-03-21 | Mitsubishi Chemicals Corp | ポリエーテルの製造方法 |
FR2925515A1 (fr) * | 2007-12-20 | 2009-06-26 | Bluestar Silicones France Soc | Composition organopolysiloxanique vulcanisable a temperature ambiante en elastomere et nouveaux catalyseurs de polycondensation d'organopolysiloxanes. |
KR20120102072A (ko) | 2009-12-11 | 2012-09-17 | 인비스타 테크놀러지스 에스.에이.알.엘. | 올리고머 시클릭 에테르의 해중합 |
EP3222648B1 (en) * | 2014-11-20 | 2020-01-01 | Mitsubishi Chemical Corporation | Polytetramethylene ether glycol, method for producing it, polyester elastomer and polyurethane |
US9815808B2 (en) | 2016-02-29 | 2017-11-14 | Regents Of The University Of Minnesota | Recovery of monomer from polyurethane materials by depolymerization |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1211973A (en) * | 1968-04-18 | 1970-11-11 | Mobil Oil Corp | Polymerization with zeolitic catalysts |
US3842019A (en) * | 1969-04-04 | 1974-10-15 | Minnesota Mining & Mfg | Use of sulfonic acid salts in cationic polymerization |
JPS5232677B2 (ko) * | 1972-12-29 | 1977-08-23 | ||
US4202964A (en) * | 1978-03-16 | 1980-05-13 | E. I. Du Pont De Nemours And Company | Method for reducing oligomeric cyclic ether content of a polymerizate |
JPS60109584A (ja) * | 1983-11-17 | 1985-06-15 | Asahi Chem Ind Co Ltd | ポリオキシテトラメチレングリコ−ルの解重合方法 |
DE3606479A1 (de) * | 1986-02-28 | 1987-09-03 | Basf Ag | Verfahren zur herstellung von polyoxibutylenpolyoxialkylenglykolen mit enger molekulargewichtsverteilung und vermindertem gehalt an oligomeren cyclischen ethern |
JPH0713140B2 (ja) * | 1986-05-02 | 1995-02-15 | 旭化成工業株式会社 | ポリオキシアルキレングリコ−ルおよび、または環式ポリアルキレンエ−テルの解重合方法 |
IT1226550B (it) * | 1988-07-29 | 1991-01-24 | Enichem Anic Spa | Processo di oligomerizzazione selettiva di olefine e nuovo catalizzatore per tale processo. |
US5102849A (en) * | 1990-04-23 | 1992-04-07 | Shell Oil Company | Supported rare earth and phosphorus catalyst |
JPH0616805A (ja) * | 1992-06-30 | 1994-01-25 | Daicel Chem Ind Ltd | ポリオキシテトラメチレングリコ−ルジエステルの製造方法 |
ES2220334T3 (es) * | 1992-10-21 | 2004-12-16 | E.I. Du Pont De Nemours And Company | Despolimerizacion para obtener eteres ciclicos mediante catalisis por compuestos metalicos seleccionados. |
ES2118265T3 (es) * | 1993-02-23 | 1998-09-16 | Du Pont | Copolimerizacion de tetrahidrofuranos y anhidridos ciclicos. |
-
1994
- 1994-07-14 WO PCT/US1994/007590 patent/WO1995002625A2/en active IP Right Grant
- 1994-07-14 DE DE69424316T patent/DE69424316T2/de not_active Expired - Fee Related
- 1994-07-14 EP EP96202116A patent/EP0750000B1/en not_active Expired - Lifetime
- 1994-07-14 EP EP98204328A patent/EP0903365B1/en not_active Expired - Lifetime
- 1994-07-14 ES ES94923920T patent/ES2139088T3/es not_active Expired - Lifetime
- 1994-07-14 EP EP94923920A patent/EP0708794B1/en not_active Expired - Lifetime
- 1994-07-14 ES ES96202116T patent/ES2147343T3/es not_active Expired - Lifetime
- 1994-07-14 SG SG1996007260A patent/SG52641A1/en unknown
- 1994-07-14 DE DE69420845T patent/DE69420845T2/de not_active Expired - Fee Related
- 1994-07-14 KR KR1019960700181A patent/KR100323176B1/ko not_active IP Right Cessation
- 1994-07-14 DE DE69432086T patent/DE69432086T2/de not_active Expired - Fee Related
- 1994-07-14 KR KR1020017010610A patent/KR100325965B1/ko not_active IP Right Cessation
- 1994-07-14 JP JP7504610A patent/JPH09500161A/ja not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0750000A2 (en) | 1996-12-27 |
ES2139088T3 (es) | 2000-02-01 |
DE69432086T2 (de) | 2003-10-30 |
EP0903365A3 (en) | 1999-04-21 |
DE69432086D1 (de) | 2003-03-06 |
DE69424316T2 (de) | 2000-12-28 |
EP0903365B1 (en) | 2003-01-29 |
DE69424316D1 (de) | 2000-06-08 |
WO1995002625A2 (en) | 1995-01-26 |
EP0750000A3 (en) | 1997-02-19 |
KR100325965B1 (ko) | 2002-03-07 |
EP0708794A1 (en) | 1996-05-01 |
JPH09500161A (ja) | 1997-01-07 |
EP0708794B1 (en) | 1999-09-22 |
EP0903365A2 (en) | 1999-03-24 |
KR100323176B1 (ko) | 2002-06-26 |
WO1995002625A3 (en) | 1995-05-26 |
ES2147343T3 (es) | 2000-09-01 |
EP0750000B1 (en) | 2000-05-03 |
DE69420845T2 (de) | 2000-04-20 |
KR960703965A (ko) | 1996-08-31 |
DE69420845D1 (de) | 1999-10-28 |
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