Patents Assigned to L. BRÜGGEMANN GMBH & CO. KG
  • Patent number: 11053193
    Abstract: The preparation and use of mixed salts of hydroxyalkane sulfinic acids and optionally hydroxyalkane sulfonic acids as a reducing agent are disclosed. The reducing power of the salts is significantly higher than the reducing power of the corresponding zinc salt. The storage stability of the salts as solids and as aqueous solution is significantly higher than one of the corresponding sodium salts.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: July 6, 2021
    Assignee: L. BRÜGGEMANN GMBH & CO. KG
    Inventors: Josef Berghofer, Stefan Mark, Tamara Bittlingmayer, Jessica Schreiweis
  • Patent number: 10662150
    Abstract: A sulfonic acid salt composition includes compounds of formula (I), wherein n is 1 or 2, R1 is H or C1-C6 alkyl, R2 is COOM, SO3M or CH(OH)SO2—OM, each M is an equivalent of a multivalent metal, preferably magnesium, calcium, aluminum, zinc and combinations thereof. The molar ratio of a compound wherein n is 1 to a compound wherein n is 2 is below 0.1. The sulfonic acid salt composition is useful for color stabilization of non-living organic matter such as from lacquers, paints, powder-coatings, and polymers in particular water-absorbent polymers.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 26, 2020
    Assignee: L. BRÜGGEMANN GMBH & CO. KG
    Inventors: Josef Berghofer, Stefan Mark, Tamara Bittlingmayer, Jessica Schreiweis
  • Publication number: 20200095198
    Abstract: A sulfonic acid salt composition includes compounds of formula (I), wherein n is 1 or 2, R1 is H or C1-C6 alkyl, R2 is COOM, SO3M or CH(OH)SO2-OM, each M is an equivalent of a multivalent metal, preferably magnesium, calcium, aluminum, zinc and combinations thereof. The molar ratio of a compound wherein n is 1 to a compound wherein n is 2 is below 0.1. The sulfonic acid salt composition is useful for color stabilization of non-living organic matter such as from lacquers, paints, powder-coatings, and polymers in particular water-absorbent polymers.
    Type: Application
    Filed: December 12, 2017
    Publication date: March 26, 2020
    Applicant: L. BRÜGGEMANN GMBH & CO. KG
    Inventors: Josef BERGHOFER, Stefan MARK, Tamara BITTLINGMAYER, Jessica SCHREIWEIS
  • Publication number: 20200062701
    Abstract: The preparation and use of mixed salts of hydroxyalkane sulfinic acids and optionally hydroxyalkane sulfonic acids as a reducing agent are disclosed. The reducing power of the salts is significantly higher than the reducing power of the corresponding zinc salt. The storage stability of the salts as solids and as aqueous solution is significantly higher than one of the corresponding sodium salts.
    Type: Application
    Filed: December 12, 2017
    Publication date: February 27, 2020
    Applicant: L. BRÜGGEMANN GMBH & CO. KG
    Inventors: Josef BERGHOFER, Stefan MARK, Tamara BITTLINGMAYER, Jessica SCHREIWEIS
  • Publication number: 20190248965
    Abstract: The present invention concerns an additive for the controlled viscosity adjustment of polycondensates, comprising an acid and/or acid anhydride and a carrier, preferably a polymeric carrier, characterized in that the acid and/or the acid anhydride is uniformly distributed in the carrier, a process for preparing the additive, a process for the controlled viscosity adjustment of polycondensates and the use of the additive for the controlled viscosity adjustment of polycondensates.
    Type: Application
    Filed: October 16, 2017
    Publication date: August 15, 2019
    Applicant: L. BRÜGGEMANN GmbH & Co. KG
    Inventor: Klaus Bergmann
  • Publication number: 20190248986
    Abstract: This invention concerns a process for the long-term stabilization of polyamides and the use of a specific additive composition for the long-term stabilization of polyamides.
    Type: Application
    Filed: October 16, 2017
    Publication date: August 15, 2019
    Applicant: L. Brüggemann GmbH & Co. KG
    Inventor: Klaus Bergmann