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GB742811A - Improvements in the manufacture of highly polymeric polymethylene terephthalates - Google Patents

Improvements in the manufacture of highly polymeric polymethylene terephthalates

Info

Publication number
GB742811A
GB742811A GB11946/53A GB1194653A GB742811A GB 742811 A GB742811 A GB 742811A GB 11946/53 A GB11946/53 A GB 11946/53A GB 1194653 A GB1194653 A GB 1194653A GB 742811 A GB742811 A GB 742811A
Authority
GB
United Kingdom
Prior art keywords
acetate
catalyst
antimony
barium
glycol
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
GB11946/53A
Inventor
Norman Fletcher
Royden Lewis Heath
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 BE528508D priority Critical patent/BE528508A/xx
Priority to BE528507D priority patent/BE528507A/fr
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB11946/53A priority patent/GB742811A/en
Priority to GB11945/53A priority patent/GB742810A/en
Priority claimed from GB11944/53A external-priority patent/GB742196A/en
Priority to CH326176D priority patent/CH326176A/en
Priority to CH326566D priority patent/CH326566A/en
Priority to CH326177D priority patent/CH326177A/en
Priority to ES0215049A priority patent/ES215049A1/en
Priority to FR1100466D priority patent/FR1100466A/en
Priority to DEI8602A priority patent/DE1058256B/en
Priority to FR1100467D priority patent/FR1100467A/en
Publication of GB742811A publication Critical patent/GB742811A/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
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • C08G63/86—Germanium, antimony, or compounds thereof
    • C08G63/866—Antimony 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
    • C08G63/78—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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/84—Boron, aluminium, gallium, indium, thallium, rare-earth metals, 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)
  • Artificial Filaments (AREA)

Abstract

In making highly polymeric polymethylene terephthalates by polymerizing under subatmospheric pressure a bis-(hydroxyalkyl) terephthalate formed by ester interchange between a glycol and an alkyl ester of terephthalic acid, a salt of calcium, strontium or barium which is soluble in the reaction mixture is used as a catalyst for the ester interchange process. Suitable salts are those of weak acids, e.g. the acetate, malonate, adipate, benzoate, phosphite or arsenate. The amount of catalyst used should be such as to give a product containing less than 0.1 per cent of metal. The catalyst is preferably added as a fine powder dispersed, or dissolved in glycol. Other catalysts, e.g. lead oxide or antimony compounds such as antimony oxide, antimony acetate, potassium antimony tartrate or potassium pyroantimonate may also be added. Examples employ ethylene glycol and dimethylterephthalate with antimony trioxide as the polycondensation catalyst and use as ester interchange catalysts: (1) calcium acetate; (2) calcium acetate with titanium dioxide as a delustrant; (3) barium acetate; (4) barium phosphite; (5) barium arsenate; and (6) strontium acetate. According to the Provisional Specification the oxide or hydroxide of the alkaline earth metal may be used as the catalyst.
GB11946/53A 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates Expired GB742811A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
BE528508D BE528508A (en) 1953-04-30
BE528507D BE528507A (en) 1953-04-30
GB11946/53A GB742811A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
GB11945/53A GB742810A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
CH326177D CH326177A (en) 1953-04-30 1954-04-28 Process for the production of polyesters
CH326176D CH326176A (en) 1953-04-30 1954-04-28 Process for the production of polyesters
CH326566D CH326566A (en) 1953-04-30 1954-04-28 Process for the production of polyesters
ES0215049A ES215049A1 (en) 1953-04-30 1954-04-29 A process for obtaining polyesters (Machine-translation by Google Translate, not legally binding)
FR1100466D FR1100466A (en) 1953-04-30 1954-04-30 Improvements in the manufacture of polyesters
DEI8602A DE1058256B (en) 1953-04-30 1954-04-30 Process for the preparation of high polymer polymethylene terephthalates
FR1100467D FR1100467A (en) 1953-04-30 1954-04-30 Improvements in the manufacture of polyesters

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB11944/53A GB742196A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
GB11946/53A GB742811A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
GB11945/53A GB742810A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
GB140454X 1954-04-14

Publications (1)

Publication Number Publication Date
GB742811A true GB742811A (en) 1956-01-04

Family

ID=27448122

Family Applications (2)

Application Number Title Priority Date Filing Date
GB11946/53A Expired GB742811A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates
GB11945/53A Expired GB742810A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB11945/53A Expired GB742810A (en) 1953-04-30 1953-04-30 Improvements in the manufacture of highly polymeric polymethylene terephthalates

Country Status (5)

Country Link
BE (2) BE528507A (en)
CH (3) CH326176A (en)
DE (1) DE1058256B (en)
FR (2) FR1100467A (en)
GB (2) GB742811A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068205A (en) * 1958-10-27 1962-12-11 Eastman Kodak Co Synergistic catalyst composition containing a group ii metal salt and an arsenic compound for preparing condensation-type polyesters
CN106280293A (en) * 2015-06-09 2017-01-04 东丽纤维研究所（中国）有限公司 A kind of polymer blend and its production and use

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228063B (en) * 1955-06-24 1966-11-03 Hoechst Ag Process for the production of high molecular weight, linear polyesters
GB1060693A (en) * 1963-05-08 1967-03-08 Toyo Rayon Co Ltd Process for the preparation of polyester for slideable film
GB1218230A (en) * 1967-12-27 1971-01-06 Asahi Chemical Ind Polyethylene-1,2-diphenoxyethane-4,4'-dicarboxylates and a process for producing them

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068205A (en) * 1958-10-27 1962-12-11 Eastman Kodak Co Synergistic catalyst composition containing a group ii metal salt and an arsenic compound for preparing condensation-type polyesters
CN106280293A (en) * 2015-06-09 2017-01-04 东丽纤维研究所（中国）有限公司 A kind of polymer blend and its production and use
CN106280293B (en) * 2015-06-09 2020-04-07 东丽纤维研究所（中国）有限公司 Polyester composition and preparation method and application thereof

Also Published As

Publication number Publication date
FR1100466A (en) 1955-09-20
CH326177A (en) 1957-12-15
BE528507A (en)
BE528508A (en)
CH326566A (en) 1957-12-31
DE1058256B (en) 1959-05-27
GB742810A (en) 1956-01-04
CH326176A (en) 1957-12-15
FR1100467A (en) 1955-09-20

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