Patent ID: 9012590
Filing Date: 2015-04-21
Classification: C08G,C08K,C08L,H01M,Y02E,Y02P

Abstract:
1. An electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate comprising poly(diethylene glycol adipate) with (b) at least one diisocyanate comprising 4,4′-methylenebis-(phenyl isocyanate) and (c) at least one glycol chain extender comprising hydroquinone di(hydroxyethyl) ether; wherein said electrostatic dissipative thermoplastic polyurethane composition further comprises an effective amount of a metal salt for electrostatic dissipation wherein said metal salt is substantially free of any co-solvents and wherein the metal salt is not added to the electrostatic dissipative thermoplastic polyurethane composition in combination with a co-solvent; wherein said metal salt comprises lithium trifluoromethane sulfonamide; and wherein said electrostatic dissipative thermoplastic polyurethane composition further comprises an antistatic agent comprising tri-n-butylmethylammonium bis-(trifluororethanesulfonyl)imide.