Demulsifiers and methods for use in pharmaceutical applications

Details Demulsifiers and methods for use in pharmaceutical applications Demulsifiers and methods for use in pharmaceutical applications

A - Human Necessities

61

K

A61K 47/34 (2006.01) A61K 47/20 (2006.01) A61K 47/24 (2006.01) B01D 17/05 (2006.01) C07C 309/17 (2006.01) C07F 9/38 (2006.01) C08G 65/329 (2006.01)

Patent

CA 2720290

Demulsifiers containing an anionic surfactant selected from alkylsulfosuccinates, alkylsufonates, alkylphosphonic acids, and their salts; a nonionic surfactant selected from ethylene oxide/propylene oxide copolymers, ethoxylated fatty acids of polyethylene glycol, terpene alkoxylates, and modified alkanolamides; or a combination of an anionic and a nonionic surfactant, and methods of use thereof in breaking emulsions.

L'invention porte sur des démulsifiants contenant un agent tensio-actif anionique choisi parmi les alkylsulfosuccinates, les alkylsulfonates, les acides alkylphosphoniques et leurs sels ; sur un agent tensio-actif non ionique choisi parmi les copolymères oxyde d'éthylène/oxyde de propylène, les acides gras éthoxylés de polyéthylène glycol, les alcoxylates de terpène et les alcanolamides modifiés ; ou sur une combinaison d'un agent tensio-actif anionique et d'un agent tensio-actif non ionique, et sur des procédés d'utilisation de ceux-ci dans des émulsions de rupture.

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