GB1286240A - Process for the preparation of polyterephthaloyl oxamidrazones - Google Patents
Process for the preparation of polyterephthaloyl oxamidrazonesInfo
- Publication number
- GB1286240A GB1286240A GB4693470A GB4693470A GB1286240A GB 1286240 A GB1286240 A GB 1286240A GB 4693470 A GB4693470 A GB 4693470A GB 4693470 A GB4693470 A GB 4693470A GB 1286240 A GB1286240 A GB 1286240A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxamidrazones
- polyterephthaloyl
- tetrahydrofuran
- water
- oct
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyamides (AREA)
Abstract
1286240 Polyterephthaloyl oxamidrazones GLANZSTOFF AG 2 Oct 1970 [9 Oct 1969] 46934/70 Addition to 1139279 Heading C3R Polyterephthaloyl oxamidrazones are obtained by reacting oxalic acid bisamidrazone with terephthaloyl chloride at 0 to 60‹ C. in a two-phase solvent mixture of water and purified tetrahydrofuran, the ratio of water to tetrahydrofuran being from 2:1 to 1: 2 by volume, with the addition of 7À5 to 30% by weight based on the water of lithium sulphate or lithium chloride as salting out agent and of an alkali metal carbonate or bicarbonate as an acid acceptor. The tetrahydrofuran may have been purified by contact with solid potassium hydroxide followed by distillation over sodium borohydride or potassium permanganate. Examples are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691950907 DE1950907B2 (en) | 1969-10-09 | 1969-10-09 | Process for the preparation of polyterephthaloyloxalamidrazones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1286240A true GB1286240A (en) | 1972-08-23 |
Family
ID=5747731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4693470A Expired GB1286240A (en) | 1969-10-09 | 1970-10-02 | Process for the preparation of polyterephthaloyl oxamidrazones |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE755108R (en) |
DE (1) | DE1950907B2 (en) |
ES (1) | ES383526A1 (en) |
FR (1) | FR2065214A6 (en) |
GB (1) | GB1286240A (en) |
IT (1) | IT943110B (en) |
LU (1) | LU61824A1 (en) |
NL (1) | NL7014766A (en) |
SE (1) | SE366331B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1800736A1 (en) * | 1968-10-02 | 1970-04-23 | Smith Blair Inc | Pipe branch clamp |
DE29714297U1 (en) * | 1997-04-01 | 1997-10-16 | Hetzenauer, Stefan, Kirchberg | Formwork device |
-
0
- BE BE755108D patent/BE755108R/en active
-
1969
- 1969-10-09 DE DE19691950907 patent/DE1950907B2/en not_active Withdrawn
-
1970
- 1970-09-10 ES ES383526A patent/ES383526A1/en not_active Expired
- 1970-09-30 SE SE1327170A patent/SE366331B/xx unknown
- 1970-10-02 GB GB4693470A patent/GB1286240A/en not_active Expired
- 1970-10-03 IT IT5383070A patent/IT943110B/en active
- 1970-10-07 LU LU61824D patent/LU61824A1/xx unknown
- 1970-10-08 NL NL7014766A patent/NL7014766A/xx unknown
- 1970-10-08 FR FR7036436A patent/FR2065214A6/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE755108R (en) | 1971-02-01 |
DE1950907B2 (en) | 1978-07-20 |
ES383526A1 (en) | 1972-12-16 |
FR2065214A6 (en) | 1971-07-23 |
LU61824A1 (en) | 1971-04-29 |
SE366331B (en) | 1974-04-22 |
NL7014766A (en) | 1971-04-14 |
IT943110B (en) | 1973-04-02 |
DE1950907A1 (en) | 1971-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |