GB1289633A - - Google Patents
Info
- Publication number
- GB1289633A GB1289633A GB1289633DA GB1289633A GB 1289633 A GB1289633 A GB 1289633A GB 1289633D A GB1289633D A GB 1289633DA GB 1289633 A GB1289633 A GB 1289633A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jan
- aromatic
- aliphatic
- catalysts
- polycondensation
- 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
- 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
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
Abstract
1289633 Polycondensation catalysts SANDOZ Ltd 21 Jan 1970 [29 Jan 1969] 3015/70 Addition to 1236477 Heading C3R Polyesters are prepared using metallic titanium as polycondensation catalyst wherein the polyester is derived from aromatic and/or aliphatic dicarboxylic acids, e.g. iso- or terephthalic, naphthalene-2,6-dicarboxylic, diphenyldicarboxylic, adipic or sebacic acids, or lower alkyl esters thereof, and an aliphatic and/or cycloaliphatic and/or aromatic dihydric alcohol, e.g. a C 2-10 alkanediol, diethylene glycol, or 1,4-bis- (4<SP>1</SP>-#-hydroxyethoxy-phenyl)-propane. In the examples titanium catalysts having particle sizes up to 100 Á are used to prepare poly- (ethylene terephthalate).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87369A AT286641B (en) | 1969-01-29 | 1969-01-29 | Process for the production of polyesters using a metal powder as a catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1289633A true GB1289633A (en) | 1972-09-20 |
Family
ID=3501777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1289633D Expired GB1289633A (en) | 1969-01-29 | 1970-01-21 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT286641B (en) |
| AU (1) | AU1059370A (en) |
| BE (1) | BE745182R (en) |
| BR (1) | BR7016357D0 (en) |
| ES (1) | ES375930A2 (en) |
| GB (1) | GB1289633A (en) |
| NL (1) | NL7000795A (en) |
| ZA (1) | ZA70635B (en) |
-
1969
- 1969-01-29 AT AT87369A patent/AT286641B/en not_active IP Right Cessation
-
1970
- 1970-01-20 NL NL7000795A patent/NL7000795A/xx unknown
- 1970-01-21 GB GB1289633D patent/GB1289633A/en not_active Expired
- 1970-01-22 AU AU10593/70A patent/AU1059370A/en not_active Expired
- 1970-01-27 ES ES375930A patent/ES375930A2/en not_active Expired
- 1970-01-28 BR BR216357/70A patent/BR7016357D0/en unknown
- 1970-01-29 BE BE745182D patent/BE745182R/en active
- 1970-01-29 ZA ZA700635A patent/ZA70635B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7000795A (en) | 1970-07-31 |
| AT286641B (en) | 1970-12-10 |
| AU1059370A (en) | 1971-07-29 |
| ZA70635B (en) | 1971-09-29 |
| BE745182R (en) | 1970-07-01 |
| ES375930A2 (en) | 1972-11-01 |
| BR7016357D0 (en) | 1973-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |