GB1246645A - Method of producing polyamides - Google Patents

Method of producing polyamides

Info

Publication number
GB1246645A
GB1246645A GB4392468A GB4392468A GB1246645A GB 1246645 A GB1246645 A GB 1246645A GB 4392468 A GB4392468 A GB 4392468A GB 4392468 A GB4392468 A GB 4392468A GB 1246645 A GB1246645 A GB 1246645A
Authority
GB
United Kingdom
Prior art keywords
diphenyl
polycondensed
diamino
dihydroxy
hydrolysis
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
GB4392468A
Inventor
Vasily Vladimirovich Korshak
Alexandr Andreevich Izyneev
Valentina Georgievna Samsonova
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.)
BURYATSKY INST ESTESTVENNYKH N
Original Assignee
BURYATSKY INST ESTESTVENNYKH N
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
Application filed by BURYATSKY INST ESTESTVENNYKH N filed Critical BURYATSKY INST ESTESTVENNYKH N
Priority to GB4392468A priority Critical patent/GB1246645A/en
Publication of GB1246645A publication Critical patent/GB1246645A/en
Expired legal-status Critical Current

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

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

1,246,645. Stabilized polyamides. BURYATSKY INSTITUT ESTESTVENNYKH NAUK. 16 Sept., 1968, No. 43924/68. Heading C3R. Hexamethylene diamine is polycondensed in a stream of inert gas at 180‹ to 260‹ C. with a dicarboxylic acid or its diphenyl ester in the presence of up to 6 mol. per cent based on total reactants of an aromatic tetramine or bis-oaminophenol or where R is -CH 2 -, -C(CH 3 ) 2 -, -O-, or a direct valency link and R<SP>1</SP>is -O-, -C(CH 3 ) 2 - or -CH.C 6 H 5 -. This amount is stated to enhance the stability of the polycarbonamide against light, heat and hydrolysis. The tetraamine or aminophenol may be added initially or after formation of the polyamide melt. Further heating in vacuo at 260‹ to 280‹ C. is stated to increase the molecular weight. In examples hexamethylene diamine is polycondensed with diphenyl adipate or sebacate in the presence of about 5 mol per cent of 3,31-diaminobenzidine; a mixture of the tetra-amines of diphenyl methane and oxide; 3,3<SP>1</SP>-diamino-4,4<SP>1</SP>-dihydroxy-diphenyl propane; or, a mixture of 3,3<SP>1</SP>- diamino - 4,4<SP>1</SP> - dihydroxy - diphenyl methane and oxide. Products having inherent viscosities between 0À58 and 1À02 (0À5% at 20‹ C.); that of Example 4 (0À51) is reduced to 0À2 on hydrolysis with HCl for one hour at 80‹ C. The polyamides are crystalline and soluble in m-cresol, tricresol, formic acid or chloral hydrate. Reference is made to Specification 811,758.
GB4392468A 1968-09-16 1968-09-16 Method of producing polyamides Expired GB1246645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4392468A GB1246645A (en) 1968-09-16 1968-09-16 Method of producing polyamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4392468A GB1246645A (en) 1968-09-16 1968-09-16 Method of producing polyamides

Publications (1)

Publication Number Publication Date
GB1246645A true GB1246645A (en) 1971-09-15

Family

ID=10430953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4392468A Expired GB1246645A (en) 1968-09-16 1968-09-16 Method of producing polyamides

Country Status (1)

Country Link
GB (1) GB1246645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647003A1 (en) * 1976-10-18 1978-04-20 Modest Sergejevitsch Akutin Polybenzoxazole(s) prepn. for use in coatings and reinforced plastics - by condensing a bis-ortho-aminophenol with a di:carboxylic acid (OE 15.12.77)
WO2004090070A1 (en) * 2003-04-02 2004-10-21 Idemitsu Kosan Co., Ltd. Antioxidant and bisaminophenol derivative

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647003A1 (en) * 1976-10-18 1978-04-20 Modest Sergejevitsch Akutin Polybenzoxazole(s) prepn. for use in coatings and reinforced plastics - by condensing a bis-ortho-aminophenol with a di:carboxylic acid (OE 15.12.77)
WO2004090070A1 (en) * 2003-04-02 2004-10-21 Idemitsu Kosan Co., Ltd. Antioxidant and bisaminophenol derivative
US7498467B2 (en) 2003-04-02 2009-03-03 Idemitsu Kosan Co., Ltd. Antioxidant and bisaminophenol derivative

Similar Documents

Publication Publication Date Title
GB1275995A (en) Synthetic linear polyamides and process for the preparation thereof
GB1472615A (en) Reinforced polyamide resins
CA2097615A1 (en) Terephthalic acid copolyamides
JPH0853546A (en) Production of partially crystalline or noncrystalline,heat plasticizable and processable initial condensate of partially aromatic polyamide or copolyamide
KR920002663A (en) Novel copolyamides and preparation methods thereof
DE3478813D1 (en) Polyamide compositions from mixtures of trimethylhexamethylene diamine, hexamethylene diamine and diacids
GB1154816A (en) Process for the production of High Melting Polyamides
GB919096A (en) Polyamides based on aromatic dicarboxylic acids
ES8703504A1 (en) Process for the preparation of copolyamides based on hexamethylene diamine, apidic acid and dimeric acid.
EP0306165A3 (en) Preparation of homopolyamides
KR920002664A (en) Novel copolyamides and preparation methods thereof
GB1403916A (en) Transparent thermoplastically formable copolyamides
GB1267376A (en) Thermoplastic polyamide moulding compostions
GB1246645A (en) Method of producing polyamides
US3992360A (en) Transparent polyamides from 1,3-bis-(aminomethyl)-cyclohexane and aliphatic amino carboxylic acid
KR910002947A (en) Thermotactic semi-aliphatic copolyesteramides and preparation method thereof
ES8201183A1 (en) Copolyamides based on hexamethylene diamine of adipic acid and dimer acids, and processes for their preparation.
GB1251520A (en)
GB1363084A (en) Process for the production of linear copolyamides containing oxamide groups
US3755263A (en) Disulfimide acid-modified high molecular weight polyamides
JP2001519447A5 (en)
GB948507A (en) Improvements in or relating to synthetic polymers
JPS6485315A (en) Polyamide monofilament and production thereof
GB1194741A (en) Improvements in or relating to the Manufacture of Polyamides
KR890002283A (en) Polyamides, Methods of Making the Same, and Uses thereof