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Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of omega-unsaturated fatty acids. Arkerna France, Arkema, Patent Department 26th Floor, August 26, 2010: US20100216198-A1

The invention relates to a method for the synthesis of short-chain ω-unsaturated fatty acids of general formula CH2═CH—(CH2)n—COOR in which n is an integer between 2 and 11 and R is H or an alkyl radical containing from 1 to 4 carbon atoms, from long-chain monounsaturated fatty acids or esters of fo ...


2
Wissam Rached: Heat transfer fluid. Arkerna France, August 4, 2011: US20110186772-A1

The present invention relates to compositions which are based on tetrafluoropropene and more particularly relates to compositions comprising 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which ca ...


3
Wissam Rached: Method for heating and/or air conditioning a vehicle. Arkerna France, September 15, 2011: US20110219792-A1

The present invention relates to method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including 2,3,3,30-tetrafluoropropane and at least one compound chosen from among propane, propylene and ethylene. Said meth ...



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