GB790170A - Improved process for preparing polymers of amino undecanoic acid - Google Patents
Improved process for preparing polymers of amino undecanoic acidInfo
- Publication number
- GB790170A GB790170A GB7069/56A GB706956A GB790170A GB 790170 A GB790170 A GB 790170A GB 7069/56 A GB7069/56 A GB 7069/56A GB 706956 A GB706956 A GB 706956A GB 790170 A GB790170 A GB 790170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- undecanoic acid
- amino
- polymerized
- monomer
- 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)
Abstract
<PICT:0790170/III/1> 11-amino-undecanoic acid is polymerized in a continuous process using an aqueous starting material containing 50 to 60 per cent by weight of the monomer, to which water is added at ordinary temperature, the resultant aqueous suspension being subjected continuously to rapid evaporation at a temperature higher than the melting point of the monomer at ordinary pressure to eliminate substantially all the water in less than 15 minutes, the product being polymerized by passage through a reaction zone heated to polymerization temperature. 11-amino-undecanoic acid paste is charged discontinuously into a mixing vessel 10 by inlet 12, water added through 13 and stirring effected using the agitator 14, the slurry being fed to the evaporator 20 and atomized by the rotating diffuser 24 which projects the resultant particles against the heating bodies 25, and then into the polymerization apparatus 28. Stabilizers, e.g. aluminium stearate and delustreing agents, e.g. titanium dioxide, may be present in the starting material.ALSO:<PICT:0790170/IV (a)/1> 11-Amino-undecanoic acid is polymerized in a continuous process using an aqueous starting material containing 50 to 60 per cent by weight of the monomer, to which water is added at ordinary temperature, the resultant aqueous suspension being subjected continuously to rapid evaporation at a temperature higher than the melting-point of the monomer at ordinary pressure to eliminate substantially all the water in less than 15 minutes, the product being polymerized by passage through a reaction zone heated to polymerization temperature. 11-Amino-undecanoic acid paste is charged discontinuously into a mixing vessel 10 by inlet 12, water added through 13 and stirring effected using the agitator 14, the slurry being fed to the evaporator 20 and atomized by the rotating diffuser 24 which projects the resultant particles against the heating bodies 25, and then into the polymerization apparatus 28. Stabilizers, e.g. aluminium stearate and delustring agents, e.g. titanium dioxide may be present in the starting material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT790170X | 1955-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB790170A true GB790170A (en) | 1958-02-05 |
Family
ID=11316642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7069/56A Expired GB790170A (en) | 1955-04-19 | 1956-03-06 | Improved process for preparing polymers of amino undecanoic acid |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE546479A (en) |
| FR (1) | FR1149274A (en) |
| GB (1) | GB790170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917856A (en) * | 2022-05-31 | 2022-08-19 | 中国五环工程有限公司 | Process system and method for preparing nylon 11 by polymerizing 11-aminoundecanoic acid |
-
0
- BE BE546479D patent/BE546479A/xx unknown
-
1956
- 1956-03-06 GB GB7069/56A patent/GB790170A/en not_active Expired
- 1956-03-28 FR FR1149274D patent/FR1149274A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917856A (en) * | 2022-05-31 | 2022-08-19 | 中国五环工程有限公司 | Process system and method for preparing nylon 11 by polymerizing 11-aminoundecanoic acid |
| CN114917856B (en) * | 2022-05-31 | 2023-12-19 | 中国五环工程有限公司 | Process system and method for preparing nylon 11 by polymerizing 11-aminoundecanoic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1149274A (en) | 1957-12-23 |
| BE546479A (en) |
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