GB872328A - Production of stabilised polyamides - Google Patents

Production of stabilised polyamides

Info

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
Application number
GB3863857A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US627984A external-priority patent/US3017391A/en
Application filed by Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Priority claimed from US729509A external-priority patent/US3018273A/en
Publication of GB872328A publication Critical patent/GB872328A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14Lactams
    • C08G69/16Preparatory processes
    • C08G69/18Anionic polymerisation
    • C08G69/20Anionic 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.
GB3863857A 1956-12-13 1957-12-12 Production of stabilised polyamides Expired GB872328A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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