Patents by Inventor Manuel Seva

Manuel Seva 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).

  • Continuous process for the production of mono- or dicarboxylic acid alkyl amides
    Patent number: 8158826
    Abstract: A continuous process for the production of mono- or dicarboxylic acid alkyl amides is described, which is characterized in that: fresh mono- or dicarboxylic acid is placed into a first reactor (R1) connected with a distillation column (C1) and subjected to a reaction with ammonia or gaseous alkyl amine to form a pre-mixture consisting of mono- or dicarboxylic acid alkyl amide and unreacted mono- or dicarboxylic acid, while the water of condensation is distilled off; said pre-mixture is transferred into a second reactor (R2) also equipped with a distillation column (C2) and subjected to a further reaction with ammonia or gaseous alkyl amine to substantially convert all unreacted mono- or dicarboxylic acid into mono- or dicarboxylic acid alkyl amide; and all unreacted ammonia or gaseous alkyl amine is transferred into the first reactor (R1) to start the amidation reaction.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: April 17, 2012
    Assignee: Cognis IP Management GmbH
    Inventors: Joaquin Bigorra, Llosas, Javier Raya, Emilio Brau, Balague, Manuel Seva, Ivan Francia, Ramon Valls
  • Continuous Process for the Production of mono- or dicarboxylic acid alkyl amides
    Publication number: 20090062565
    Abstract: A continuous process for the production of mono- or dicarboxylic acid alkyl amides is described, which is characterized in that: fresh mono- or dicarboxylic acid is placed into a first reactor (R1) connected with a distillation column (C1) and subjected to a reaction with ammonia or gaseous alkyl amine to form a pre-mixture consisting of mono- or dicarboxylic acid alkyl amide and unreacted mono- or dicarboxylic acid, while the water of condensation is distilled off; said pre-mixture is transferred into a second reactor (R2) also equipped with a distillation column (C2) and subjected to a further reaction with ammonia or gaseous alkyl amine to substantially convert all unreacted mono- or dicarboxylic acid into mono- or dicarboxylic acid alkyl amide; and all unreacted ammonia or gaseous alkyl amine is transferred into the first reactor (R1) to start the amidation reaction.
    Type: Application
    Filed: March 9, 2007
    Publication date: March 5, 2009
    Applicant: Cognis IP Management GmbH
    Inventors: Joaquin Bigorra Llosas, Javier Raya, Emilio Brau Balague, Manuel Seva, Ivan Francia, Ramon Valls