Patents Assigned to Henkel Kommnaditgesellschaft auf Aktien
  • Process for dewatering fine-particle solids suspensions using dialkyl carbonates
    Patent number: 5492631
    Abstract: Fine-particle solids suspensions can be dewatered by a process in which dialkyl carbonates corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent alkyl and/or alkenyl groups containing 1 to 22 carbon atoms andm and n independently of one another stand for 0 or numbers of 1 to 10,are used as auxiliaries. The auxiliaries are readily biodegradable, extremely low-foaming and are distinguished by a low solidification point.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: February 20, 1996
    Assignee: Henkel Kommnaditgesellschaft auf Aktien
    Inventors: Rita Koester, Alfred Westfechtel, Walter Knoerr