GB756384A - Improved process for the stabilization of polyamides - Google Patents
Improved process for the stabilization of polyamidesInfo
- Publication number
- GB756384A GB756384A GB175/54A GB17554A GB756384A GB 756384 A GB756384 A GB 756384A GB 175/54 A GB175/54 A GB 175/54A GB 17554 A GB17554 A GB 17554A GB 756384 A GB756384 A GB 756384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butyrolactone
- polyamides
- precondensate
- jan
- stabilization
- 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
- 239000004952 Polyamide Substances 0.000 title abstract 4
- 229920002647 polyamide Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract 10
- 229930188620 butyrolactone Natural products 0.000 abstract 5
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- MRERMGPPCLQIPD-NBVRZTHBSA-N (3beta,5alpha,9alpha,22E,24R)-3,5,9-Trihydroxy-23-methylergosta-7,22-dien-6-one Chemical compound C1C(O)CCC2(C)C(CCC3(C(C(C)/C=C(\C)C(C)C(C)C)CCC33)C)(O)C3=CC(=O)C21O MRERMGPPCLQIPD-NBVRZTHBSA-N 0.000 abstract 1
- UFFRSDWQMJYQNE-UHFFFAOYSA-N 6-azaniumylhexylazanium;hexanedioate Chemical compound [NH3+]CCCCCC[NH3+].[O-]C(=O)CCCCC([O-])=O UFFRSDWQMJYQNE-UHFFFAOYSA-N 0.000 abstract 1
- 235000001014 amino acid Nutrition 0.000 abstract 1
- 150000001413 amino acids Chemical class 0.000 abstract 1
- 150000003950 cyclic amides Chemical class 0.000 abstract 1
- 150000004985 diamines Chemical class 0.000 abstract 1
- 150000001991 dicarboxylic acids Chemical class 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 238000006068 polycondensation reaction Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
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
756,384. Polyamides. PERFOGIT SOC. PER AZIONI. Jan. 4, 1954 [Jan. 12, 1953], No. 175/54. Class 2 (5). In the preparation of polyamides by the polycondensation or polymerization of diamines and dicarboxylic acids or esters thereof, or of aminoacids, or of cyclic amides, the molecular weight of the product is controlled by carrying out the process in the presence of butyrolactone. Polyamides specified are polymers of omegaaminoundecanoic acid, caprolactam or hexamethylene diamine adipate. It is preferred to operate under such conditions that butyrolactone is not lost by distillation and this may be done either by adding the butyrolactone after the greater amount of water, if any, formed during polymerization has been driven off, or, and preferably, by forming a precondensate of the butyrolactone with a part of the polyamideforming starting material and employing this precondensate in place of butyrolactone. Specification 495,790, [Group IV], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT756384X | 1953-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756384A true GB756384A (en) | 1956-09-05 |
Family
ID=31898485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB175/54A Expired GB756384A (en) | 1953-01-12 | 1954-01-04 | Improved process for the stabilization of polyamides |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE525613A (en) |
| FR (1) | FR1094098A (en) |
| GB (1) | GB756384A (en) |
| NL (1) | NL89067C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3328341A (en) * | 1963-09-09 | 1967-06-27 | American Enka Corp | Polyamides containing butyrolactone |
| US3373055A (en) * | 1963-05-22 | 1968-03-12 | Secr Aviation | Process for treating polyamide materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709399B (en) * | 2013-11-29 | 2016-04-27 | 中蓝晨光化工研究设计院有限公司 | A kind of 11-aminoundecanoic acid normal pressure melt polymerization prepares the technique of nylon 11 |
-
1953
- 1953-12-24 FR FR1094098D patent/FR1094098A/en not_active Expired
-
1954
- 1954-01-04 GB GB175/54A patent/GB756384A/en not_active Expired
- 1954-01-11 BE BE525613A patent/BE525613A/fr unknown
- 1954-01-11 NL NL184229A patent/NL89067C/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3373055A (en) * | 1963-05-22 | 1968-03-12 | Secr Aviation | Process for treating polyamide materials |
| US3328341A (en) * | 1963-09-09 | 1967-06-27 | American Enka Corp | Polyamides containing butyrolactone |
Also Published As
| Publication number | Publication date |
|---|---|
| NL89067C (en) | 1958-09-15 |
| BE525613A (en) | 1956-06-08 |
| FR1094098A (en) | 1955-05-11 |
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