Patent ID: 6620338
Filing Date: 2003-09-16
Classification: C02F,C09K,C23F

Abstract:
A scale and corrosion inhibiting composition suitable for use as a corrosion inhibitor in carbon dioxide-containing aqueous systems, and consisting essentially of:an amino thiol or disulfide compound of the structure: and, an acidic amino acid polymer; wherein R1, R2, R3, R4, R5, R6, R7 and R8 are, independently of on another, selected from the group consisting of hydrogen, carboxyl, C1 to C18 alkyl, and C6 to C10 aryl; Z is selected from the group consisting of hydrogen and covalent bond; m and n are, independently of one another, 1, 2 or 3; and p is zero or 1, with the proviso that p is zero when Z is hydrogen.