NL157921B - PROCESS FOR THE PREPARATION OF POLYESTERS. - Google Patents

PROCESS FOR THE PREPARATION OF POLYESTERS.

Info

Publication number
NL157921B
NL157921B NL6907039A NL6907039A NL157921B NL 157921 B NL157921 B NL 157921B NL 6907039 A NL6907039 A NL 6907039A NL 6907039 A NL6907039 A NL 6907039A NL 157921 B NL157921 B NL 157921B
Authority
NL
Netherlands
Prior art keywords
polyesters
preparation
Prior art date
Application number
NL6907039A
Other languages
Dutch (nl)
Other versions
NL6907039A (en
Original Assignee
Ici 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 claimed from GB2171768A external-priority patent/GB1197004A/en
Application filed by Ici Ltd filed Critical Ici Ltd
Publication of NL6907039A publication Critical patent/NL6907039A/xx
Publication of NL157921B publication Critical patent/NL157921B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/30—Germanium compounds
    • 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
    • C08G63/863—Germanium or compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
NL6907039A 1968-05-08 1969-05-08 PROCESS FOR THE PREPARATION OF POLYESTERS. NL157921B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2171668 1968-05-08
GB2171768A GB1197004A (en) 1968-05-08 1968-05-08 Basic Germanium Alkoxide

Publications (2)

Publication Number Publication Date
NL6907039A NL6907039A (en) 1969-11-11
NL157921B true NL157921B (en) 1978-09-15

Family

ID=26255475

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6907039A NL157921B (en) 1968-05-08 1969-05-08 PROCESS FOR THE PREPARATION OF POLYESTERS.

Country Status (3)

Country Link
DE (1) DE1923603C2 (en)
FR (1) FR2008089A1 (en)
NL (1) NL157921B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600652A1 (en) * 1986-06-24 1987-12-31 Rhone Poulenc Chimie Hexacoordinated germanium complexes, their preparation and their use as catalysts

Also Published As

Publication number Publication date
DE1923603A1 (en) 1969-11-13
NL6907039A (en) 1969-11-11
DE1923603C2 (en) 1982-07-29
FR2008089A1 (en) 1970-01-16

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: ICI

V4 Lapsed because of reaching the maxim lifetime of a patent