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EP0280223A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Polyacetals, process for their fabrication from dialdehydes and polyolacids, and use of polyacetals

Assignee: BASF SE
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Filing: 1988-02-20
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Granted: —
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Expires: 2008-02-20
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Abstract

Abstract Translated from German Polyacetale, erhältlich durch Umsetzung von a) Dialdehyden der Formel OHC - A n - CHO , in der A = C₁-C₄-Alkylen und bedeutet und n = 0 oder 1 ist, mit b) mindestens 3 OH-Gruppen enthaltenden Polyolcarbonsäuren, die 5 bis 7 C-Atome aufweisen, im Molverhältnis (a):(b) von 1:0,25 bis 4 in wäßrigen Medium in Gegenwart von sauren Katalysatoren.Polyacetals, obtainable by the implementation of a) Dialdehydes of the formula OHC - A n - CHO, in the A = C₁-C₄ alkylene and means and n = 0 or 1, with b) polyol carboxylic acids containing at least 3 OH groups and having 5 to 7 carbon atoms, in a molar ratio (a) :( b) of 1: 0.25 to 4 in an aqueous medium in the presence of acidic catalysts. Die Polyacetale werden als Zusatz zu Waschmitteln und als Komplexbildner für Schwermetallionen verwendet. The polyacetals are used as additives for detergents and as complexing agents for heavy metal ions.

Inventors

  • 👤 Richard Dr. Baur
  • 👤 Rolf Dr. Fikentscher
  • 👤 Alfred Dr. Oftring
  • 👤 Felix Dr. Richter
  • 👤 Wolfgang Dr. Trieselt
  • 👤 Paul Diessel
  • 👤 Ekhard Dr. Winkler
  • 👤 Johannes Dr. Perner

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 20:59
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3711; C08; C08G; C08G4/00

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