The Compound Contains Repeating -(ocnh2n)- (i.e., Repeating Unsubstituted Oxyalkylene) Patents (Class 516/177)
The ester group is derived from mono-basic acid reactant (Class 516/178)
  • Aromatic aldehyde resins and their use as emulsion breakers
    Patent number: 6646016
    Abstract: Resins useful in methods of breaking oil-water emulsions. The resins obtained by reacting a compound of formula 1 with an aldehyde and alkoxylating, in any order: wherein X is —NHR1; —COOH; or —CONHR2; and is ortho—, meta— or para— to X and is a radical of —O—R3; —C(O)R4; —OC(O)R5; —NR6R7; wherein R1-R7 values are defined herein.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: November 11, 2003
    Assignee: Clariant GmbH
    Inventors: Frank Holtrup, Elisabeth Wasmund, Wolfram Baumgärtner, Michael Feustel