GB857062A - Improvements in and relating to polyamides - Google Patents
Improvements in and relating to polyamidesInfo
- Publication number
- GB857062A GB857062A GB28519/58A GB2851958A GB857062A GB 857062 A GB857062 A GB 857062A GB 28519/58 A GB28519/58 A GB 28519/58A GB 2851958 A GB2851958 A GB 2851958A GB 857062 A GB857062 A GB 857062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethyl
- aminoheptanoate
- acid
- heptanoate
- propyl
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Linear polyamides containing recurring structural units-HN(CH2)6 CO-are made by heating at a temperature above 240 DEG C. at atmospheric pressure, a pre-polyamide made by heating a linear aliphatic ester of 7-amino heptanoic acid or a phenyl ether ester of 7-aminoheptanoic acid or mixtures thereof with branched chain aliphatic or cycloaliphatic esters of 7-aminoheptanoic acid with at least a molar equivalent of water at a temperature below 200 DEG C. at atmospheric pressure while passing a stream of inert gas through the reaction mixture. Viscosity stabilizers e.g. benzoic, stearic, p-toluic, adipic, sebacic, glutaric and pimelic acid and ethyl 6-cyanohexanoate, ethyl 7-benzamidoheptanoate, ethyl 7-acetamidoheptanoate and ethyl 7-toluamido heptanoate may be present in the reaction mixture. In the examples, polyamides are made from (1) and (2) ethyl 7-aminoheptanoate, (3) and (10) ethyl 7-aminoheptanoate and as stabilizers p-toluic acid, sebacic acid, dimethyl adipate, ethyl 7-benzamidoheptanoate, ethyl 7-acetamido heptanoate, ethyl- (p-toluamido)heptanoate or ethyl 6-cyanohexanoate (4) npropyl 7-aminoheptanoate, (5) n-butyl (7-aminoheptanoate), (6) 1-phenylethyl7-aminoheptanoate, (7) and (8) isopropyl 7-aminoheptanoate and ethyl (7-aminoheptanoate) and (9) 1-phenylethyl, n-propyl, ethyl, n-butyl and iso-propyl 7-aminoheptanoate with prepolymers made from ethyl, n-propyl, n-butyl and 1-phenylethyl 7-aminoheptanoate.ALSO:Polyamide prepolymers comprising a mixture of unreacted 7-amino-heptanoic acid ester, 7-aminoheptanoic acid and a polyamide having a reduced viscosity lower than 0,7 at a concentration of 0,2 gms. of the polyamide in solution in 100 mls. of a 3 : 2 by weight mixture of phenol and tetrachloroethane are made by heating a linear aliphatic ester of 7-aminoheptanoic acid or a phenyl ethyl ester of 7-aminoheptanoic acid or mixtures thereof with branched chain aliphatic or cycloaliphatic esters of 7-aminoheptanoic acid with at least a molar equivalent of water at a temperature below 200 DEG C. and at atmospheric pressure while passing a stream of inert gas through the reaction mixture. In the Examples, prepolymers are made from :-(1), (2) and (9) ethyl 7-aminoheptanoate, (3) and (10) ethyl 7-aminoheptanoate and various stabilisers, (4) and (9) n-propyl 7-aminoheptanoate, (5) and (9) n-butyl 7-aminoheptanoate, (6) and (9) 1-phenyl ethyl 7-aminoheptanoate and (7) isopropyl 7-aminoheptanoate and ethyl 7-amino heptanoate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US857062XA | 1957-09-06 | 1957-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857062A true GB857062A (en) | 1960-12-29 |
Family
ID=22193413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28519/58A Expired GB857062A (en) | 1957-09-06 | 1958-09-05 | Improvements in and relating to polyamides |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1161420B (en) |
| FR (1) | FR1210181A (en) |
| GB (1) | GB857062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705554A (en) * | 2013-11-15 | 2016-06-22 | 阿肯马法国公司 | Production method for rubber composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2071253A (en) * | 1935-01-02 | 1937-02-16 | Du Pont | Linear condensation polymers |
-
1958
- 1958-09-02 DE DEU5574A patent/DE1161420B/en active Pending
- 1958-09-05 GB GB28519/58A patent/GB857062A/en not_active Expired
- 1958-09-05 FR FR1210181D patent/FR1210181A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705554A (en) * | 2013-11-15 | 2016-06-22 | 阿肯马法国公司 | Production method for rubber composition |
| JP2016538392A (en) * | 2013-11-15 | 2016-12-08 | アルケマ フランス | Polyamide synthesis method |
| JP2020109174A (en) * | 2013-11-15 | 2020-07-16 | アルケマ フランス | Polyamide synthesis method |
| US11299588B2 (en) | 2013-11-15 | 2022-04-12 | Arkema France | Polyamide synthesis method |
| CN114409893A (en) * | 2013-11-15 | 2022-04-29 | 阿肯马法国公司 | Method for synthesizing polyamide |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1161420B (en) | 1964-01-16 |
| FR1210181A (en) | 1960-03-07 |
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