Patents by Inventor Maxim Weber

Maxim Weber 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).

  • Process for the preparation of a crystalline L-MGDA trialkali metal salt
    Patent number: 9227915
    Abstract: A process is proposed for the preparation of a crystalline L-MGDA trialkali metal salt by crystallization from an aqueous solution thereof which has been obtained by Strecker synthesis, starting from L-?-alanine, by reaction with formaldehyde and hydrocyanic acid to give L-?-alanine-N,N-diacetonitrile and subsequent alkaline saponification of the L-?-alanine-N,N-diacetonitrile to give the L-MGDA trialkali metal salt, wherein a temperature of 150° C. is not exceeded during the alkaline saponification.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: January 5, 2016
    Assignee: BASF SE
    Inventors: Alfred Oftring, Maxim Weber, Gerold Braun, Arnulf Lauterbach
  • PROCESS FOR THE PREPARATION OF A CRYSTALLINE L-MGDA TRIALKALI METAL SALT
    Publication number: 20120283473
    Abstract: A process is proposed for the preparation of a crystalline L-MGDA trialkali metal salt by crystallization from an aqueous solution thereof which has been obtained by Strecker synthesis, starting from L-?-alanine, by reaction with formaldehyde and hydrocyanic acid to give L-?-alanine-N,N-diacetonitrile and subsequent alkaline saponification of the L-?-alanine-N,N-diacetonitrile to give the L-MGDA trialkali metal salt, wherein a temperature of 150° C. is not exceeded during the alkaline saponification.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 8, 2012
    Applicant: BASF SE
    Inventors: Alfred OFTRING, Maxim Weber, Gerold Braun, Arnulf Lauterbach