Patents by Inventor Ludwik Synoradzki

Ludwik Synoradzki 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).

  • Publication number: 20180305301
    Abstract: Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water-alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75° C. for 1.5-4 h, and then, at a temperature of 20-30° C., the post-reaction mixture is acidified till the pH of the aqueous phase <7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Krzysztof BUJNOWSKI, Ludwik SYNORADZKI, Jerzy WISIALSKI, Agnieszka KROLIKOWSKA, Jacek BORDZILOWSKI, Marcin KOZIOROWSKI, Roman ZADROZNY, Anna JERZAK, Krzysztof DZIENIS
  • Patent number: 10059658
    Abstract: Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water-alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75° C. for 1.5-4 h, and then, at a temperature of 20-30° C., the post-reaction mixture is acidified till the pH of the aqueous phase <7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 28, 2018
    Assignee: POLITECHNIKA WARSZAWSKA
    Inventors: Krzysztof Bujnowski, Ludwik Synoradzki, Jerzy Wisialski, Agnieszka Krolikowska, Jacek Bordzilowski, Marcin Koziorowski, Roman Zadrozny, Anna Jerzak, Krzysztof Dzienis
  • Publication number: 20170362168
    Abstract: Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water-alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75° C. for 1.5-4 h, and then, at a temperature of 20-30° C., the post-reaction mixture is acidified till the pH of the aqueous phase <7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventors: Krzysztof BUJNOWSKI, Ludwik SYNORADZKI, Jerzy WISIALSKI, Agnieszka KROLIKOWSKA, Jacek BORDZILOWSKI, Marcin KOZIOROWSKI, Roman ZADROZNY, Anna JERZAK, Krzysztof DZIENIS
  • Patent number: 4795820
    Abstract: A method of manufacture of tinorganic compounds.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: January 3, 1989
    Assignees: Politchnika Warszawska, Zaklady Tworzyw Sztucznych "Boryszew-Erg"
    Inventors: Ludwik Synoradzki, Jacek Lasota, Boguslaw Zielinski, Andrzej Kasprzak, Maciej Uninski, Bogdan Siwanowicz, Tomasz Dluzniewski, Andrzej Gieysztor, Roman Zadrozny, Andrzej Smyk, Andrzej Pazgan, Irena Dobosz, Teresa Brzozowska-Janiak, Zdzislaw Szawlowski, Ireneusz Dusinski