Patents by Inventor Ervin Vertesi

Ervin Vertesi 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).

  • Absorbent composition for purifying gases which contain acidic components
    Patent number: 6267939
    Abstract: An absorbent composition for purifying gases which contain acidic components. The composition contains at least one compound of formula (I), wherein n is 2-6, p is 1-3, the R1 groups may be the same or different and represent hydrogen or C1-3 alkyl, and R2 is hydrogen, C1-3 alkyl or a group of formula (II). The composition is an aqueous solution of 20-60 w/w %.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 31, 2001
    Assignees: Huntsman Corporation Hungary Vegyipari Termelo-Fejleszto Reszvenytarsasag, Mol Magyar Olaj-Es Gazipari Rt., Alkoto-Pannon Muszaki Fejleszto es Szolgaltato KFT
    Inventors: Istvan Gemes, Tamas Drozda, Gyorgy Borsi, Peter Aranyi, Miklos Nyari, Katalin Novotnik, Arpad Vago, Laszlo Beliczay, Karoly Olah, Gyorgy Csoor, Levente Kotsis, Zoltan Nagy, Ervin Vertesi
  • Process for the preparation of 2,6-dialkyl-N-alkoxymethyl-2-chloro-acetanilides
    Patent number: 4399306
    Abstract: The invention relates to an improved method for the preparation of a 2',6'-dialkyl-N-alkoxymethyl-2-chloro-acetanilide compound of the general formula (I), ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical or different and stand for straight-chained or branched C.sub.1-4 alkyl groups.According to the invention a dialkyl aniline of the general formula (II), ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, is treated with aqueous formaldehyde solution in an apolar solvent at a temperature of 30.degree. to 80.degree. C., the solution of the resulting oxymethyl derivative formed with said apolar solvent is separated from the aqueous formaldehyde solution at an elevated temperature and then dehydrated, the resulting azomethine derivative is reacted with chloroacetyl chloride in the same apolar solvent medium, the resulting chloromethyl compound is reacted with an alcohol of the general formula (V),R.sub.3 -OH (V)wherein R.sub.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: August 16, 1983
    Assignees: Nitrokemia Ipartelepek, Nehezvegyipari Kutato Intezet, Mta Mezogazdasagi Kutato Intezet
    Inventors: Kornelia Domjan nee Pinter, Gyorgy Huszak, Zoltan Kolonics, Laszlo Lendvai, Jeno Pelyva, Endre Sumegi, Elemer Tomordi, Bela Gyorfi, Laszlo J. Szabo, Andras Haas, Miklos Kovacs, Taszlo Kulcsar, Miklos Nadasy, Balint Nagy, Andras Vass, Ervin Vertesi