Patents by Inventor Diana Walter

Diana Walter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ADDITIVE FOR TEMPERATURE ADAPTIVE RHEOLOGY PROFILE
    Publication number: 20220289896
    Abstract: The invention relates to a polymer (P) comprising at least one segment (S1) and at least one segment (S2) covalently linked to each other, wherein i) at least one segment (S1) has a number average molecular weight in the range of 6,000-25,000 g/mol and consists of ether repeating units, and for at least 75% by weight of repeating units of the formula —[CH2—CH2—O—]—, ii) at least one segment (S2) has a number average molecular weight of at most 10,000 g/mol and consists of ether repeating units, and for at most 25% by weight of repeating units of the formula —[CH2—CH2—O—]—, iii) polymer (P) comprises terminal groups comprising at least one of hydroxyl, primary amine or salts thereof, secondary amine or salts thereof, carboxylic acid or salts thereof.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 15, 2022
    Inventors: Alan L. Steinmetz, Justin Adams, René Nagelsdiek, Donna Benefiel, Diana Walter, Aaron Osborne, George M. Zody
  • Wetting and dispersing agent
    Patent number: 8097076
    Abstract: Low-VOC mixture of at least partially salified copolymers of at least one ethylenically unsaturated, phenyl-group-containing monomer and at least one ?,?-unsaturated monocarboxylic acid and/or at least one ?,?-unsaturated dicarboxylic acid, of at least one water-soluble polyether, esterification products of at least one water-soluble polyether and an aliphatic dicarboxylic acid, and of a star polymer obtainable by esterifying a carboxylic acid containing at least 3 carboxyl groups with at least one water-soluble polyether, and use thereof as a wetting and dispersing agent, preferably for producing low-VOC pigment pastes or low-VOC paint systems.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: January 17, 2012
    Assignee: BYK-Chemie GmbH
    Inventors: Bernd Göbelt, Carsten Nagel, Jürgen Omeis, Marcus Meichsner, Diana Walter
  • WETTING AND DISPERSING AGENT
    Publication number: 20100322879
    Abstract: Low-VOC mixture of at least partially salified copolymers of at least one ethylenically unsaturated, phenyl-group-containing monomer and at least one ?,?-unsaturated monocarboxylic acid and/or at least one ?,?-unsaturated dicarboxylic acid, of at least one water-soluble polyether, esterification products of at least one water-soluble polyether and an aliphatic dicarboxylic acid, and of a star polymer obtainable by esterifying a carboxylic acid containing at least 3 carboxyl groups with at least one water-soluble polyether, and use thereof as a wetting and dispersing agent, preferably for producing low-VOC pigment pastes or low-VOC paint systems.
    Type: Application
    Filed: July 28, 2010
    Publication date: December 23, 2010
    Applicant: BYK-CHEMIE GMBH
    Inventors: Bernd Göbelt, Carsten Nagel, Jürgen Omeis, Marcus Meichsner, Diana Walter