The Ester Group Is Derived From Mono-basic Acid Reactant Patents (Class 516/178)
  • Draw solute and water treatment equipment
    Patent number: 11639299
    Abstract: A draw solute for forward osmosis membrane process, comprising an addition polymer obtained by addition polymerization of an alkylene oxide having 2 to 10 carbon atoms to an amine compound.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 2, 2023
    Assignees: Nippon Shokubai Co., Ltd., National University Corporation Kobe University
    Inventors: Koji Koyama, Yuki Miyoshi, Hideto Matsuyama, Asuka Inada
  • 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