DE2760272A1 - - Google Patents
Info
- Publication number
- DE2760272A1 DE2760272A1 DE19772760272 DE2760272A DE2760272A1 DE 2760272 A1 DE2760272 A1 DE 2760272A1 DE 19772760272 DE19772760272 DE 19772760272 DE 2760272 A DE2760272 A DE 2760272A DE 2760272 A1 DE2760272 A1 DE 2760272A1
- Authority
- DE
- Germany
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67255576A | 1976-03-31 | 1976-03-31 | |
| US67255776A | 1976-03-31 | 1976-03-31 | |
| US67255676A | 1976-03-31 | 1976-03-31 | |
| US75121176A | 1976-12-16 | 1976-12-16 | |
| US76751077A | 1977-02-14 | 1977-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2760272A1 true DE2760272A1 (US06826419-20041130-M00005.png) | 1985-05-09 |
| DE2760272C2 DE2760272C2 (US06826419-20041130-M00005.png) | 1987-04-16 |
Family
ID=27542063
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772709280 Expired DE2709280C2 (de) | 1976-03-31 | 1977-03-03 | Verfahren zur Herstellung von Poly-(tetramethylenether)-glykol |
| DE19772760272 Expired DE2760272C2 (US06826419-20041130-M00005.png) | 1976-03-31 | 1977-03-03 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772709280 Expired DE2709280C2 (de) | 1976-03-31 | 1977-03-03 | Verfahren zur Herstellung von Poly-(tetramethylenether)-glykol |
Country Status (7)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463020A (en) * | 1993-07-26 | 1995-10-31 | Basf Aktiengesellschaft | Preparation of polytetrahydrofuran or tetrahydrofuran/alkylene oxide copolymers |
| US6043338A (en) * | 1995-07-27 | 2000-03-28 | Basf Aktiengesellschaft | Method of producing polyoxytetramethylene glycol |
| US6359108B1 (en) * | 1997-05-12 | 2002-03-19 | Basf Aktiengesellschaft | Method for polymerizing cyclic ether |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004356B1 (en) * | 1978-03-16 | 1982-12-15 | E.I. Du Pont De Nemours And Company | Polyurethanes prepared with tetrahydrofuran-alkylene oxide polymerizates having low oligomeric cyclic ether content, processes for preparing the same, and articles and fibers of the polyurethanes |
| FR2429802A1 (fr) * | 1978-06-30 | 1980-01-25 | Du Pont | Procede perfectionne pour preparer des copolyether glycols a groupes terminaux ester |
| DE3004328A1 (de) * | 1980-02-06 | 1981-08-13 | Bayer Ag, 5090 Leverkusen | Polytetrahydrofurane mit acrylat- oder methacrylatendgruppen |
| DE3013927A1 (de) * | 1980-04-11 | 1981-10-22 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von hydroxylgruppenhaltigen polmeren |
| US4393199A (en) | 1981-05-12 | 1983-07-12 | S R I International | Cationic polymerization |
| DE3410069A1 (de) * | 1984-03-20 | 1985-10-03 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von hydroxylgruppen enthaltenden polymeren |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1073230A (en) * | 1962-11-23 | 1967-06-21 | Eastman Kodak Co | Preparation of poly(tetramethylene glycol) and also of elastomeric polyesters formed thereform |
| JPS5232677B2 (US06826419-20041130-M00005.png) * | 1972-12-29 | 1977-08-23 | ||
| DE2445961C2 (de) * | 1974-09-26 | 1983-12-01 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Polymerisation von Tetrahydrofuran |
-
1977
- 1977-03-03 DE DE19772709280 patent/DE2709280C2/de not_active Expired
- 1977-03-03 DE DE19772760272 patent/DE2760272C2/de not_active Expired
- 1977-03-24 FR FR7708800A patent/FR2357591A1/fr active Granted
- 1977-03-29 IT IT2183977A patent/IT1104560B/it active
- 1977-03-30 BE BE176242A patent/BE853028A/xx not_active IP Right Cessation
- 1977-03-30 PL PL19704177A patent/PL114086B1/pl unknown
- 1977-03-30 NL NL7703462A patent/NL184066C/xx not_active IP Right Cessation
- 1977-03-31 GB GB1374677A patent/GB1575529A/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463020A (en) * | 1993-07-26 | 1995-10-31 | Basf Aktiengesellschaft | Preparation of polytetrahydrofuran or tetrahydrofuran/alkylene oxide copolymers |
| US6043338A (en) * | 1995-07-27 | 2000-03-28 | Basf Aktiengesellschaft | Method of producing polyoxytetramethylene glycol |
| US6359108B1 (en) * | 1997-05-12 | 2002-03-19 | Basf Aktiengesellschaft | Method for polymerizing cyclic ether |
Also Published As
| Publication number | Publication date |
|---|---|
| PL114086B1 (en) | 1981-01-31 |
| NL7703462A (nl) | 1977-10-04 |
| FR2357591A1 (fr) | 1978-02-03 |
| NL184066C (nl) | 1989-04-03 |
| NL184066B (nl) | 1988-11-01 |
| BE853028A (fr) | 1977-09-30 |
| IT1104560B (it) | 1985-10-21 |
| DE2709280A1 (de) | 1977-10-06 |
| DE2760272C2 (US06826419-20041130-M00005.png) | 1987-04-16 |
| GB1575529A (en) | 1980-09-24 |
| FR2357591B1 (US06826419-20041130-M00005.png) | 1981-06-26 |
| DE2709280C2 (de) | 1986-08-21 |
| PL197041A1 (pl) | 1978-01-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 2709280 |
|
| 8110 | Request for examination paragraph 44 | ||
| 8181 | Inventor (new situation) |
Free format text: HEINSOHN, GEORGE EDWARD, NEWARK, DEL., US PRUCKMAYR, GERFRIED, MEDIA, PA., US ROBINSON, IVAN MAXWELL, WILMINGTON, DEL., US GIBERT, WALTER WILSON, HOCKESSIN, DEL., US |
|
| 8181 | Inventor (new situation) |
Free format text: HEINSOHN, GEORGE EDWARD, NEWARK, DEL., US PRUCKMAYR, GERFRIED, MEDIA, PA., US ROBINSON, IVAN MAXWELL, WILMINGTON, DEL., US GILBERT, WALTER WILSON, HOCKESSIN, DEL., US |
|
| AC | Divided out of |
Ref country code: DE Ref document number: 2709280 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |