GB872328A - Production of stabilised polyamides - Google Patents
Production of stabilised polyamidesInfo
- Publication number
- GB872328A GB872328A GB3863857A GB3863857A GB872328A GB 872328 A GB872328 A GB 872328A GB 3863857 A GB3863857 A GB 3863857A GB 3863857 A GB3863857 A GB 3863857A GB 872328 A GB872328 A GB 872328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caprolactam
- acetyl
- pyrrolidone
- nitroso
- group
- 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
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
- C08G69/20—Anionic polymerisation characterised by the catalysts used
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
872,328. Poly #-caprolactam. MONSANTO CHEMICAL CO. Dec. 12, 1957 [Dec. 13, 1956], No. 38638/57. Class 2(5). #-caprolactam is polymerized by heating under substantially anhydrous conditions in the presence of (a) a catalytic amount of an alkali or alkaline earth metal or of a compound thereof which acts as an anionic polymerization catalyst and (b) a compound containing at least one tertiary nitrogen atom, one group linked to the nitrogen atom being a carbonyl, thiocarbonyl or sulphonyl group and a second being a carbonyl, thiocarbonyl, sulphonyl or nitroso group, the compound being free from primary amino groups. Specified metal compounds are the hydrides, fluorohydrides, oxides, hydroxides and carbonates, lithium, sodium and potassium alkyls, e.g. butyl lithium and sodium phenyl. Specified compounds containing tertiary nitrogen atoms are N-substituted imides, e.g. N-acetyl-2- pyrrolidone; cyclic imides of dicarboxylic acids, e.g. N-phenyl succinimide; N, N-diacyl primary alkyl and arylamines and N, N-diacyl acylamides, e.g. N, N-diacetyl methylamine; the N, N<SP>1</SP>, N<SP>11</SP>- trimethyl ester of isocyanuric acid; N-acyl sulphonamides and sulphonimides, e.g. N-acetyl- N-ethyl-p-toluene sulphonamide; disulphonamides of primary alkyl and aryl amines, e.g. N, N-di(p-toluenesulphonyl) anilide; N-nitrosoamides which do not have a free hydrogen atom on the amide group, e.g. N-nitroso-2-pyrrolidone and N-nitrososulphonamides, e.g. N-nitroso-N- methyl-benzene sulphonamide, many examples of such compounds being listed. The compound containing the tertiary nitrogen may be formed in situ in the reaction mixture by reacting the #- caprolactam with an isocyanate or ketone. In the examples, #-caprolactam is polymerized in the presence of sodium hydride and (1) N-acetyl- #-caprolactam; (2) N, N-diacetyl methylamine; (3) ethyl isocyanate; (4) N-acetyl-N-methyl-ptoluene sulphonamide; (5) 4, 4<SP>1</SP>-diisocyanato diphenyl methane; (6) 2, 4-tolylene diisocyanate; (7) the tri-isocyanate formed by reacting 1, 1, 1- trihydroxymethyl propane with 2, 4-tolylene diisocyanate; (8) N-phenyl succinimide; (9) N-methyl phthalimide and (10) N-acetyl-2- pyrrolidone, the products of the examples being ground, leached and dried.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US627984A US3017391A (en) | 1956-12-13 | 1956-12-13 | Preparation of polycaprolactam using n-acyl activators |
US59933858A | 1958-04-21 | 1958-04-21 | |
US729509A US3018273A (en) | 1958-04-21 | 1958-04-21 | Process of polymerizing higher lactams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB872328A true GB872328A (en) | 1961-07-05 |
Family
ID=27416777
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3863857A Expired GB872328A (en) | 1956-12-13 | 1957-12-12 | Production of stabilised polyamides |
GB1352659A Expired GB916093A (en) | 1956-12-13 | 1959-04-21 | Production of polyamides |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1352659A Expired GB916093A (en) | 1956-12-13 | 1959-04-21 | Production of polyamides |
Country Status (7)
Country | Link |
---|---|
CA (1) | CA607225A (en) |
CH (1) | CH429173A (en) |
DE (3) | DE1294020B (en) |
FR (2) | FR1194451A (en) |
GB (2) | GB872328A (en) |
IT (1) | IT580069A (en) |
NL (1) | NL125087C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1570876B1 (en) * | 1964-04-17 | 1972-06-08 | Licencia Talalmanyokat | Process for the production of polyamide molded articles |
DE2461558A1 (en) * | 1973-12-28 | 1975-07-10 | Sir Soc Italiana Resine Spa | BLOCK COPOLYMERIZATION AND PROCESS FOR ITS MANUFACTURING |
DE2557360A1 (en) * | 1974-12-20 | 1976-07-15 | Sir Soc Italiana Resine Spa | BLOCK COPOLYMERISATE AND PROCESS FOR ITS MANUFACTURING |
CN110983364A (en) * | 2019-12-20 | 2020-04-10 | 湖南七纬科技有限公司 | High-hydrophilicity diaphragm for electrolyzed water and preparation method thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1232993A (en) * | 1982-09-29 | 1988-02-16 | Markus Matzner | Blends of poly(etherimides) and polyamides |
US4518765A (en) * | 1984-03-19 | 1985-05-21 | The Upjohn Company | Anionic polymerization of lactam with azetidine-2,4-dione promoter |
ES2078181B1 (en) * | 1994-03-04 | 1996-08-01 | Fernandez Rafael Zabala | MANUFACTURING PROCESS OF TOOLING FROM CAPROLACTAMA WITH A PRE-POLYMER TO OBTAIN A MOLDED RAW COPOLYMER THAT IS MACHINED WITH THE FORM OF THE DESIRED TOOLING. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD5385A (en) * | ||||
NL64563C (en) * | 1943-03-17 | |||
NL84511C (en) * | 1951-12-07 | |||
DE1030022B (en) * | 1953-02-24 | 1958-05-14 | Gen Aniline & Film Corp | Process for the production of high molecular weight polymerisation products |
DE1025140B (en) * | 1953-02-24 | 1958-02-27 | Gen Aniline & Film Corp | Process for the production of high molecular weight polymerisation products |
-
0
- IT IT580069D patent/IT580069A/it unknown
- CA CA607225A patent/CA607225A/en not_active Expired
-
1957
- 1957-11-27 FR FR1194451D patent/FR1194451A/en not_active Expired
- 1957-12-12 DE DE1957M0036156 patent/DE1294020B/en active Pending
- 1957-12-12 DE DE19571795467 patent/DE1795467A1/en active Pending
- 1957-12-12 GB GB3863857A patent/GB872328A/en not_active Expired
-
1959
- 1959-04-18 DE DE19591420598 patent/DE1420598C3/en not_active Expired
- 1959-04-20 CH CH7226059A patent/CH429173A/en unknown
- 1959-04-21 GB GB1352659A patent/GB916093A/en not_active Expired
- 1959-04-21 FR FR792729A patent/FR1220726A/en not_active Expired
- 1959-04-21 NL NL238392A patent/NL125087C/xx active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1570876B1 (en) * | 1964-04-17 | 1972-06-08 | Licencia Talalmanyokat | Process for the production of polyamide molded articles |
DE2461558A1 (en) * | 1973-12-28 | 1975-07-10 | Sir Soc Italiana Resine Spa | BLOCK COPOLYMERIZATION AND PROCESS FOR ITS MANUFACTURING |
DE2557360A1 (en) * | 1974-12-20 | 1976-07-15 | Sir Soc Italiana Resine Spa | BLOCK COPOLYMERISATE AND PROCESS FOR ITS MANUFACTURING |
CN110983364A (en) * | 2019-12-20 | 2020-04-10 | 湖南七纬科技有限公司 | High-hydrophilicity diaphragm for electrolyzed water and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
GB916093A (en) | 1963-01-16 |
FR1220726A (en) | 1960-05-27 |
DE1420598A1 (en) | 1968-10-10 |
IT580069A (en) | |
DE1294020B (en) | 1969-04-30 |
DE1420598C3 (en) | 1973-10-18 |
CH429173A (en) | 1967-01-31 |
DE1420598B2 (en) | 1973-02-01 |
NL125087C (en) | 1968-09-16 |
CA607225A (en) | 1960-10-18 |
FR1194451A (en) | 1959-11-10 |
DE1795467A1 (en) | 1972-01-27 |
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