ES361392A1 - Procedimiento para la preparacion de poliesteres. - Google Patents

Procedimiento para la preparacion de poliesteres.

Info

Publication number
ES361392A1
ES361392A1 ES361392A ES361392A ES361392A1 ES 361392 A1 ES361392 A1 ES 361392A1 ES 361392 A ES361392 A ES 361392A ES 361392 A ES361392 A ES 361392A ES 361392 A1 ES361392 A1 ES 361392A1
Authority
ES
Spain
Prior art keywords
polyesters
mixture
pentaerythritol
alloys
ethylene 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
ES361392A
Other languages
English (en)
Spanish (es)
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 AT1136567A external-priority patent/AT279174B/de
Priority claimed from AT303368A external-priority patent/AT290132B/de
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of ES361392A1 publication Critical patent/ES361392A1/es
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
    • C08G63/78—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)
ES361392A 1967-12-15 1968-12-13 Procedimiento para la preparacion de poliesteres. Expired ES361392A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1136567A AT279174B (de) 1967-12-15 1967-12-15 Verfahren zur Herstellung von Polyestern und Copolyestern
AT303368A AT290132B (de) 1968-03-28 1968-03-28 Verfahren zur Herstellung von Polyestern und Copolyestern

Publications (1)

Publication Number Publication Date
ES361392A1 true ES361392A1 (es) 1970-11-01

Family

ID=25599466

Family Applications (1)

Application Number Title Priority Date Filing Date
ES361392A Expired ES361392A1 (es) 1967-12-15 1968-12-13 Procedimiento para la preparacion de poliesteres.

Country Status (7)

Country Link
BE (1) BE725463A (de)
CH (1) CH510071A (de)
DE (1) DE1812377A1 (de)
ES (1) ES361392A1 (de)
FR (1) FR1597794A (de)
GB (1) GB1236478A (de)
NL (1) NL6817788A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5153164A (en) * 1989-05-22 1992-10-06 Hoechst Celanese Corporation Catalyst system for preparing polyethylene terephthalate
US5008230A (en) * 1989-05-22 1991-04-16 Hoechst Celanese Corporation Catalyst for preparing high clarity, colorless polyethylene terephthalate

Also Published As

Publication number Publication date
BE725463A (de) 1969-05-16
DE1812377A1 (de) 1969-07-10
NL6817788A (de) 1969-06-17
GB1236478A (en) 1971-06-23
FR1597794A (de) 1970-06-29
CH510071A (de) 1971-07-15

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