(19)
(11) EP 0 486 113 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.07.1992 Bulletin 1992/28

(43) Date of publication A2:
20.05.1992 Bulletin 1992/21

(21) Application number: 91202966.7

(22) Date of filing: 14.11.1991
(51) International Patent Classification (IPC)5D06M 13/342, C07C 229/24, C07C 229/30
(84) Designated Contracting States:
BE CH DE DK ES FR GB GR LI LU NL SE

(30) Priority: 16.11.1990 NL 9002507

(71) Applicant: Akzo Nobel N.V.
NL-6824 BM Arnhem (NL)

(72) Inventors:
  • Frank, Albert
    W-5000 Köln 41 (DE)
  • Güth, Werner
    W-5163 Langerwehe-Schlich (DE)
  • Krüger, Götz
    W-5100 Aachen (DE)
  • Rörig, Hans
    W-5161 Merzenich (DE)

(74) Representative: Schalkwijk, Pieter Cornelis 
AKZO NOBEL N.V. Patent Department (Dept. CO) P.O. Box 9300
NL-6800 SB Arnhem
NL-6800 SB Arnhem (NL)


(56) References cited: : 
   
       


    (54) Biodegradable fabric softeners derived from aspartic acid or glutaminic acid


    (57) Stable aqueous dispersions are described which display a fabric softening action and contain a biodegradable cationic nitrogen compound. The anion of the compound is the anion of a water-soluble organic Bronstedt acid. The acid is present in an amount more than equivalent to the amount of the nitrogen compound. The cationic nitrogen is obtained from an amine which is prepared from an unsaturated dicarboxylic ester e.g. ditallow maleate and an amine e.g. dimethyl amine.





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