ES375930A2 - Procedimiento para la preparacion de poliesteres. - Google Patents

Procedimiento para la preparacion de poliesteres.

Info

Publication number
ES375930A2
ES375930A2 ES375930A ES375930A ES375930A2 ES 375930 A2 ES375930 A2 ES 375930A2 ES 375930 A ES375930 A ES 375930A ES 375930 A ES375930 A ES 375930A ES 375930 A2 ES375930 A2 ES 375930A2
Authority
ES
Spain
Prior art keywords
dicarboxylic acid
carbon atoms
molecular weight
difunctional
polyesters
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
ES375930A
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
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of ES375930A2 publication Critical patent/ES375930A2/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
    • C08G63/85—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)
ES375930A 1969-01-29 1970-01-27 Procedimiento para la preparacion de poliesteres. Expired ES375930A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT87369A AT286641B (de) 1969-01-29 1969-01-29 Verfahren zur Herstellung von Polyestern unter Verwendung eines Metallpulvers als Katalysator

Publications (1)

Publication Number Publication Date
ES375930A2 true ES375930A2 (es) 1972-11-01

Family

ID=3501777

Family Applications (1)

Application Number Title Priority Date Filing Date
ES375930A Expired ES375930A2 (es) 1969-01-29 1970-01-27 Procedimiento para la preparacion de poliesteres.

Country Status (8)

Country Link
AT (1) AT286641B (xx)
AU (1) AU1059370A (xx)
BE (1) BE745182R (xx)
BR (1) BR7016357D0 (xx)
ES (1) ES375930A2 (xx)
GB (1) GB1289633A (xx)
NL (1) NL7000795A (xx)
ZA (1) ZA70635B (xx)

Also Published As

Publication number Publication date
ZA70635B (en) 1971-09-29
BR7016357D0 (pt) 1973-02-22
GB1289633A (xx) 1972-09-20
BE745182R (fr) 1970-07-01
AU1059370A (en) 1971-07-29
NL7000795A (xx) 1970-07-31
AT286641B (de) 1970-12-10

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