Patents by Inventor Mikhail Y. Lebedev

Mikhail Y. Lebedev 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).

  • Process for separating tertiary alcohols from secondary alcohols from pine oil
    Patent number: 7928269
    Abstract: A process for separating at least one tertiary alcohol from at least one secondary alcohol from pine oil, the process comprising: reacting the pine oil comprising the at least one secondary alcohol and the at least one tertiary alcohol with at least one C3-C30 carboxylic acid ester, and at least one base, wherein the secondary alcohol is esterified to produce at least one secondary ester, with the proviso that the base is not a hydroxide; and separating the tertiary alcohol from the secondary ester.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: April 19, 2011
    Assignee: LyondellBasell Flavors and Fragrances, LLC
    Inventor: Mikhail Y. Lebedev
  • Process for separating tertiary alcohols from secondary alcohols from pine oil
    Publication number: 20100168479
    Abstract: A process for separating at least one tertiary alcohol from at least one secondary alcohol from pine oil, the process comprising: reacting the pine oil comprising the at least one secondary alcohol and the at least one tertiary alcohol with at least one C3-C30 carboxylic acid ester, and at least one base, wherein the secondary alcohol is esterified to produce at least one secondary ester, with the proviso that the base is not a hydroxide; and separating the tertiary alcohol from the secondary ester.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Applicant: Millennium Specialty chemicals, Inc.
    Inventor: Mikhail Y. Lebedev
  • Process for separating tertiary alcohols from secondary alcohols from pine oil
    Patent number: 7589241
    Abstract: A process for separating at least one tertiary alcohol from at least one secondary alcohol from pine oil, the process comprising: reacting the pine oil comprising the at least one secondary alcohol and the at least one tertiary alcohol with at least one organic carbonate, and at least one base, wherein the secondary alcohol is esterified to produce at least one secondary ester; and separating the tertiary alcohol from the secondary ester.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: September 15, 2009
    Assignee: Millennium Specialty Chemicals, Inc.
    Inventor: Mikhail Y. Lebedev
  • Process for making tricyclodecenyl esters
    Patent number: 7446221
    Abstract: A practical, economical process for making tricyclodecenyl esters is disclosed. After reacting a lower carboxylic acid and a dicyclopentadiene in the presence of triflic acid to form the ester, the reaction mixture is distilled in the presence of a base to isolate a fragrance-quality tricyclodecenyl ester. Adding enough base to neutralize the triflic acid enables a distillation-only purification, facilitates starting material recovery, and avoids drawbacks of a basic workup.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: November 4, 2008
    Assignee: Equistar Chemicals, LP
    Inventor: Mikhail Y. Lebedev
  • Process for making tricyclodecenyl esters
    Publication number: 20080021235
    Abstract: A process for making tricyclodecenyl esters is disclosed. A C2-C4 carboxylic acid and a dicyclopentadiene react in the presence of triflic acid under conditions effective to produce the ester. The process gives tricyclodecenyl esters in good yield while avoiding the need to use a large excess of the carboxylic acid. The process efficiently provides fragrance-quality tricyclodecenyl esters from technical grade dicyclopentadienes and/or recycled carboxylic acids.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Inventor: Mikhail Y. Lebedev
  • Process for making monomenthyl esters
    Patent number: 7247743
    Abstract: A process for making monomenthyl esters of dicarboxylic acids is disclosed. Menthol reacts with a saturated, cyclic anhydride in the presence of a base catalyst under conditions effective to produce a mixture of mono- and bis-menthyl esters in which the molar ratio of mono- to bis-menthyl esters is enhanced compared with the ratio of esters produced in a similar uncatalyzed process.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: July 24, 2007
    Assignee: Millennium Specialty Chemicals, Inc.
    Inventors: Mark B. Erman, Joe W. Snow, Mikhail Y. Lebedev