GB786356A - Improvements in the manufacture of polytetramethylene terephthalate - Google Patents

Improvements in the manufacture of polytetramethylene terephthalate

Info

Publication number
GB786356A
GB786356A GB540055A GB540055A GB786356A GB 786356 A GB786356 A GB 786356A GB 540055 A GB540055 A GB 540055A GB 540055 A GB540055 A GB 540055A GB 786356 A GB786356 A GB 786356A
Authority
GB
United Kingdom
Prior art keywords
terephthalate
ester
interchange
catalyst
litharge
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
GB540055A
Inventor
William Robert Burton
Norman Standring
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Priority to BE545499D priority Critical patent/BE545499A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB540055A priority patent/GB786356A/en
Priority to FR1148553D priority patent/FR1148553A/en
Publication of GB786356A publication Critical patent/GB786356A/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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/83—Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/183—Terephthalic acids
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Polytetramethylene terephthalate is made by polycondensing bis - (delta - hydroxy n-butyl) terephthalate in presence of litharge. The bis-(delta-hydroxy n-butyl) terephthalate may be made by effecting ester-interchange between a dialkyl terephthalate and 1.4-butane diol and litharge may also be used as the ester-interchange catalyst. Zinc acetate may be used as an additional ester-interchange catalyst and zinc oxide as an additional polycondensation catalyst. Titanium dioxide may be added prior to the polycondensation to effect delustring of the resulting polymer. Subject-matter in Specification 765,597 is disclaimed. Specification 765,597 is referred to.
GB540055A 1955-02-23 1955-02-23 Improvements in the manufacture of polytetramethylene terephthalate Expired GB786356A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE545499D BE545499A (en) 1955-02-23
GB540055A GB786356A (en) 1955-02-23 1955-02-23 Improvements in the manufacture of polytetramethylene terephthalate
FR1148553D FR1148553A (en) 1955-02-23 1956-02-10 Manufacture of polytetramethylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB540055A GB786356A (en) 1955-02-23 1955-02-23 Improvements in the manufacture of polytetramethylene terephthalate

Publications (1)

Publication Number Publication Date
GB786356A true GB786356A (en) 1957-11-13

Family

ID=9795454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB540055A Expired GB786356A (en) 1955-02-23 1955-02-23 Improvements in the manufacture of polytetramethylene terephthalate

Country Status (3)

Country Link
BE (1) BE545499A (en)
FR (1) FR1148553A (en)
GB (1) GB786356A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923835B1 (en) * 1969-12-05 1974-06-18
WO2009000378A1 (en) * 2007-06-22 2008-12-31 Merck Patent Gmbh Curing catalyst

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635899A (en) * 1969-09-04 1972-01-18 Fiber Industries Inc Polyesterification of 1 4- and 1 5-diols

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923835B1 (en) * 1969-12-05 1974-06-18
WO2009000378A1 (en) * 2007-06-22 2008-12-31 Merck Patent Gmbh Curing catalyst

Also Published As

Publication number Publication date
BE545499A (en)
FR1148553A (en) 1957-12-11

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