GB794365A - Improvements in or relating to synthetic linear polyterephthalamides - Google Patents

Improvements in or relating to synthetic linear polyterephthalamides

Info

Publication number
GB794365A
GB794365A GB2860955A GB2860955A GB794365A GB 794365 A GB794365 A GB 794365A GB 2860955 A GB2860955 A GB 2860955A GB 2860955 A GB2860955 A GB 2860955A GB 794365 A GB794365 A GB 794365A
Authority
GB
United Kingdom
Prior art keywords
pressure
diamine
polyterephthalamides
atmospheric pressure
heptamethylene
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
GB2860955A
Inventor
Peter Raymond Thomas
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.)
British Nylon Spinners Ltd
Original Assignee
British Nylon Spinners Ltd
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 British Nylon Spinners Ltd filed Critical British Nylon Spinners Ltd
Priority to GB2860955A priority Critical patent/GB794365A/en
Publication of GB794365A publication Critical patent/GB794365A/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
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/28—Preparatory processes

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

High molecular weight polyterephthalamides melting below 300 DEG C. are made by heating under normal or increased pressure a mixture of one or more linear aliphatic diamines having from 4 to 12 carbon atoms with dimethyl terephthalate sufficiently quickly that a melt is formed in not more than one hour, and maintaining the pressure at least high enough to keep the reagents liquid, the last stage of the polycondensation being effected under reduced pressure. Specified aliphatic diamines are hexamethylene, heptamethylene, decamethylene and octamethylene diamines. In the examples, dimethyl terephthalate is heated in the presence of nitrogen with: (1) decamethylene diamine at 280 DEG C., at or about atmospheric pressure and then at a pressure of 2 mm. of mercury; (2) octamethylene diamine at 300 DEG C. at atmospheric pressure and then at a pressure of 0.5 mm.; (3) heptamethylene diamine at 270 DEG C. at atmospheric pressure and then at a pressure of 0.5 mm. The products may be melt spun into fibres. Specification 461,237, [Group IV], is referred to.
GB2860955A 1955-10-07 1955-10-07 Improvements in or relating to synthetic linear polyterephthalamides Expired GB794365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2860955A GB794365A (en) 1955-10-07 1955-10-07 Improvements in or relating to synthetic linear polyterephthalamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2860955A GB794365A (en) 1955-10-07 1955-10-07 Improvements in or relating to synthetic linear polyterephthalamides

Publications (1)

Publication Number Publication Date
GB794365A true GB794365A (en) 1958-04-30

Family

ID=10278315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2860955A Expired GB794365A (en) 1955-10-07 1955-10-07 Improvements in or relating to synthetic linear polyterephthalamides

Country Status (1)

Country Link
GB (1) GB794365A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232909A (en) * 1960-10-20 1966-02-01 Celanese Corp Solid state polymerization of polyamideforming reactants under autogenous pressure
DE1266500B (en) * 1961-05-08 1968-04-18 Grace W R & Co Process for the production of largely amorphous polyamides
US3432476A (en) * 1963-12-30 1969-03-11 Teijin Ltd Synthetic linear copolyterephthalamides and shaped articles made therefrom
US3454536A (en) * 1964-11-12 1969-07-08 Chemische Werke Witten Gmbh Process for the preparation of polyamides
EP0001157A1 (en) * 1977-08-10 1979-03-21 E.I. Du Pont De Nemours And Company Liquid phase process for preparing high molecular weight polyamides and shaped products made from the polyamides obtained

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232909A (en) * 1960-10-20 1966-02-01 Celanese Corp Solid state polymerization of polyamideforming reactants under autogenous pressure
DE1266500B (en) * 1961-05-08 1968-04-18 Grace W R & Co Process for the production of largely amorphous polyamides
DE1295830B (en) * 1961-05-08 1969-05-22 Grace W R & Co Process for the preparation of substantially amorphous, clear polyamides
US3432476A (en) * 1963-12-30 1969-03-11 Teijin Ltd Synthetic linear copolyterephthalamides and shaped articles made therefrom
US3454536A (en) * 1964-11-12 1969-07-08 Chemische Werke Witten Gmbh Process for the preparation of polyamides
EP0001157A1 (en) * 1977-08-10 1979-03-21 E.I. Du Pont De Nemours And Company Liquid phase process for preparing high molecular weight polyamides and shaped products made from the polyamides obtained

Similar Documents

Publication Publication Date Title
GB948189A (en) Polyamides from aromatic acids and products made therefrom
GB1485294A (en) Process for preparing polyester filaments
GB794365A (en) Improvements in or relating to synthetic linear polyterephthalamides
GB805770A (en) Reinforced glass-containing articles based on polypyromellitimides
ES428648A1 (en) Shaped polyurethane articles and a method for making them
ES361893A1 (en) Process for the production of nylon 6
ES332629A1 (en) Procedure to improve the spinning characteristics of a resinant mixture. (Machine-translation by Google Translate, not legally binding)
JPS55161622A (en) Manufacture of polyester bottle
GB914054A (en) Polyamides based on terephthalic acid and articles made therefrom
GB789491A (en) High-melting interpolyamides prepared from epsilon-caprolactam
ES8200382A1 (en) Process for preparing pulverulent ethylene polymers
GB826495A (en) Chlorinated polyethylene and process for production thereof
GB901148A (en) A process for the production of polyethylene with a branched structure
GB706575A (en) Process for spinning polyacrylonitrile fibres
GB847024A (en) Improvements in or relating to linear condensation copolymers
GB806934A (en) Process for the polycondensation of diglycol terephthalate
GB877967A (en) Copolymers
GB977646A (en) Polymers of butene
ES218983A1 (en) Improvements in or relating to linear polyamides
GB841652A (en) Production of filaments, films and other shaped articles
GB1003005A (en) Modified polyolefines
GB830102A (en) Improvements in or relating to the preparation of polyureas
GB326502A (en) Process for the manufacture of artificial products from wood
GB815821A (en) Production of a thermoplastic interpolymer
GB756384A (en) Improved process for the stabilization of polyamides