Patents by Inventor Wilhelm Barlage

Wilhelm Barlage 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).

  • Patent number: 8637687
    Abstract: Provided are processes for making an amide of a carboxylic acid by reacting an amine of the formula (I) H—NR1R2??(I) wherein R1 and R2 are the same or different, R1 comprising a C1-C4-alkyl, and R2 comprising hydrogen or a C1-C4-alkyl, the amine having a lower boiling point than water, with a carboxylic acid with at least 3 carbon atoms per molecule, said carboxylic acid optionally comprising at least one alcoholic hydroxyl group per molecule, and selecting a molar ratio of amine to carboxylic acid in the range of from 1.5:1 to 1:1. The reaction step occurs under temperature and pressure conditions at which water and amine according to formula (I) are gaseous, and in a single reactor, the water formed together with any unreacted amine is distilled off, any unreacted amine is separated from the water and said the unreacted amine is reintroduced into the reaction mixture.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 28, 2014
    Assignee: BASF SE
    Inventors: Wilhelm Barlage, Javier Raya, Joaquin Bigorra Llosas, Harald Röβler
  • Publication number: 20130245297
    Abstract: Provided are processes for making an amide of a carboxylic acid by reacting an amine of the formula (I) H—NR1R2 ??(I) wherein R1 and R2 are the same or different, R1 comprising a C1-C4-alkyl, and R2 comprising hydrogen or a C1-C4-alkyl, the amine having a lower boiling point than water, with a carboxylic acid with at least 3 carbon atoms per molecule, said carboxylic acid optionally comprising at least one alcoholic hydroxyl group per molecule, and selecting a molar ratio of amine to carboxylic acid in the range of from 1.5:1 to 1:1. The reaction step occurs under temperature and pressure conditions at which water and amine according to formula (I) are gaseous, and in a single reactor, the water formed together with any unreacted amine is distilled off, any unreacted amine is separated from the water and said the unreacted amine is reintroduced into the reaction mixture.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 19, 2013
    Applicant: BASF SE
    Inventors: Wilhelm Barlage, Javier Raya, Joaquin Bigorra Llosas, Harald Rößler