Patents by Inventor Alexander Vyacheslavovich KURZIN

Alexander Vyacheslavovich KURZIN 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).

  • Method for purification of rosin
    Patent number: 9828526
    Abstract: The instant invention relates to a method for purifying a rosin-containing material from sulfur compounds. In particular the method comprises a) contacting a rosin-containing material comprising rosin and sulfur compounds with an oxidizing agent at a temperature from 0 to 60° C. for 10 minutes to 3 hours, to oxidize at least part of the sulfur compounds; and b) separating the rosin from the oxidized sulfur compounds; to obtain a purified rosin-containing material. The invention also relates to the purified rosin-containing materials, the preparation of products derived therefrom and the use of the purified rosin-containing materials and derived products.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 28, 2017
    Assignee: Kraton Chemical, LLC
    Inventors: Andrey Nikolaevich Evdokimov, Larisa Mikhailovna Popova, Alexander Vyacheslavovich Kurzin, Alyona Dmitrievna Trifonova, Godfried Buisman
  • METHOD FOR PURIFICATION OF ROSIN
    Publication number: 20160194523
    Abstract: The instant invention relates to a method for purifying a rosin-containing material from sulfur compounds. In particular the method comprises a) contacting a rosin-containing material comprising rosin and sulfur compounds with an oxidizing agent at a temperature from 0 to 60° C. for 10 minutes to 3 hours, to oxidize at least part of the sulfur compounds; and b) separating the rosin from the oxidized sulfur compounds; to obtain a purified rosin-containing material. The invention also relates to the purified rosin-containing materials, the preparation of products derived therefrom and the use of the purified rosin-containing materials and derived products.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 7, 2016
    Applicant: Arizona Chemical Company, LLC
    Inventors: Andrey Nikolaevich EVDOKIMOV, Larisa Mikhailovna POPOVA, Alexander Vyacheslavovich KURZIN, Alyona Dmitrievna TRIFONOVA, Godfried BUISMAN