Patent ID: 7951754

Claim:
A bis-quaternized compound for inhibiting corrosion and/or removing hydrocarbonaceous deposits in oil and gas applications, the compound having a net charge of zero and having a general formula: (a) wherein R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of: an unsubstituted branched, chain, or ring alkyl or alkenyl having from 1 to about 29 carbon atoms in its main chain; a partially or fully substituted branched, chain, or ring alkyl or alkenyl having from 1 to about 29 carbon atoms in its main chain, wherein said substitution includes being oxygenized, sulfurized, and/or phosphorylized; and combinations thereof; (b) L 1 and L 2 is each a moiety independently selected from the group consisting of: —H, —CO 2 H, —SO 3 H, —PO 3 H 2 , —CO 2 R 5 , —CONH 2 , —CONHR 5 , —CON(R 5 ) 2 , and combinations thereof; wherein each R 5 is independently selected from the group consisting of: branched or unbranched alkyl, aryl, alkylaryl, cycloalkyl, and heteroaromatic groups having from 1 to about 10 carbon atoms, and combinations thereof; (c) x is from 1 to about 10; and (d) y is from 1 to about 5.