Patents Assigned to KEMIRA CHEMIE GES.MBH
  • Composition for sizing paper
    Patent number: 10513828
    Abstract: A composition for sizing paper includes alkenylsuccinic anhydride (ASA) as the sizing agent and an emulsifier system of anionic emulsifiers and nonionic components, wherein the anionic emulsifiers are chosen from alkali metal salts of aliphatic carboxylic acids or aliphatic dicarboxylic acids and the nonionic components are chosen from polyethylene glycols.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 24, 2019
    Assignee: Kemira Chemie Ges.mbH
    Inventors: Leo Schmid, Jürgen Sartori
  • Paper-Sizing Emulsion, Process for Preparing It and Use Thereof
    Publication number: 20090095431
    Abstract: Aqueous paper-sizing emulsions for bulk and surface sizing with a content of fatty acid anhydrides are described in which the fatty acid anhydrides are derived from unsaturated or saturated fatty acids or their mixtures with chain lengths of C12-C24 and are liquid under 50° C. The paper sizing emulsions additionally may contain another reactive or non-reactive sizing agent and/or a fixing agent containing aluminum ions. The new emulsions are suitable for the finishing of paper and cardboard.
    Type: Application
    Filed: December 22, 2006
    Publication date: April 16, 2009
    Applicant: KEMIRA CHEMIE GES.MBH
    Inventors: Johannes Fallmann, Marcel Sychra, Leo Schmid, Jurgen Sartori