Patent ID: 8815960
Filing Date: 2014-08-26
Classification: C08G,C08L,C10G

Abstract:
1. A method of demulsifying and desalting an emulsion comprising adding to the emulsion a formulation comprising at least one amine bifunctionalized block copolymer at a concentration of 5 to 50% by weight, in a solvent having a boiling point of 35 to 200° C., wherein said amine bifunctionalized block copolymer has the formula 5a and 5b, and has an average molecular weight within the range between 800 and 4000 Daltons where: w and y are independent integers in the range of 10 to 60 to provide an average molecular weight of between 800 and 4000 Daltons; R —H; —CH where A is a number between 1 and 9, B is H, E, G and J are independently a radical selected from the group consisting of: —H, methyl, ethyl, n-propyl, iso-propyl, sec-butyl, iso-butyl, tert-butyl, n-butyl, phenyl, cyclohexyl, cyclopentyl, L is a radical represented by methyl or ethyl and M is a hydroxyl group, Q is a number between 1 and 5, T is selected from the group consisting of —H, methyl, ethyl, n-propyl, iso-propyl, sec-butyl, iso-butyl, tert-butyl, n-butyl, phenyl, cyclohexyl, cyclopentyl, NO where: U is a number between 1 and 2, X is represented by atoms of oxygen and nitrogen, when X is nitrogen then V is represented by, -methyl, ethyl, n-propyl, iso-propyl, sec-butyl, iso-butyl, tert-butyl, n-butyl phenyl, cyclohexyl, cyclopentyl, benzy, and Z is represented by methyl, ethyl, n-propyl, iso-propyl, sec-butyl, iso-butyl, tert-butyl, n-butyl, phenyl, cyclohexyl, cyclopentyl, benzyl or hydroxyl at any position of the 5 or 6 members' rings.