Patents Assigned to Renessenz, LLC
  • Physiological coolants based on lactoyl esters of menthyl lactate
    Patent number: 7968744
    Abstract: A method of imparting a physiological cooling effect to a consumer product is disclosed. The method comprises formulating into the consumer product a composition comprising at least one lactoyl ester of menthyl lactate. Also disclosed is a method of providing physiological cooling by contacting skin or mucous membranes with the lactoyl ester compositions. Coolants comprising the lactoyl esters and additional coolants are also disclosed. The lactoyl esters are conveniently prepared from menthol and lactic acid.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: June 28, 2011
    Assignee: Renessenz, LLC
    Inventors: Mark B. Erman, Patrick J. Whelan, Joe W. Snow
  • Process for making menthyl glutarate
    Patent number: 7960580
    Abstract: A process for making menthyl glutarate is disclosed. The process comprises reacting excess glutaric acid and menthol to produce a mixture comprising monomenthyl glutarate (MMG) and dimenthyl glutarate (DMG), wherein the weight ratio of glutaric acid to menthol is from 1.0 to 1.6 and the resulting mixture comprises from 60 to 70 wt. % of MMG and from 30 to 40 wt. % of DMG.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: June 14, 2011
    Assignee: Renessenz, LLC
    Inventors: Mark B. Erman, Joe W. Snow