Patent ID: 11920083
Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A surfactant composition, comprising a cationic surfactant and an anionic-nonionic surfactant, wherein a molar ratio of the cationic surfactant and the anionic-nonionic surfactant is 1:0.01 to 1:100, wherein the cationic surfactant is one or more compound of formula (II),, wherein, in formula (II),
N+ represents a quaternary nitrogen cation;
R1, R2, R3, and R4 are identical or different, each independently selected from the group consisting of a C1-50 linear or branched alkyl, a C6-20 aryl, and a group of formula, , with the proviso that R1 is a C8-50 linear or branched alkyl, R2 is represented by the formula, , and R3 is a C1-10 linear or branched alkyl or C6-20 aryl;
L1 is a single bond;
y′ is a value of from 0 to 15, excluding 0;
Ru′ is identical with or different from one another, each independently being a C2-6 linear or branched alkylene;
L2 is hydrogen, an optionally substituted C1-10 linear or branched alkyl, an optionally substituted C2-10 linear or branched alkenyl, or an optionally substituted C6-10 aryl;
X− is a halogen ion or hydroxide ion (OH),
wherein the anionic-nonionic surfactant is a compound of formula (I-2),, wherein, in the formula (I-2):
Rb is a C1-50 linear or branched alkyl, a C5-50 monocyclic or polycyclic cycloalkyl, or a C2-50 linear or branched alkenyl;
Rb′ is identical to or different from one another, each independently selected from the group consisting of a single bond and carbonyl; and
x″ is an integer from 1 to 10,
m′ is identical with or different from one another, each independently being a value of from 30 to 50,
n′ is identical with or different from one another, each independently being a value of from 30 to 50,
m″ is identical with or different from one another, each independently being a value of from 30 to 50,
n″ is identical with or different from one another, each independently being a value of from 30 to 50,
L is identical with or different from one another, each independently being a C1-5 linear or branched alkylene,
Salt is identical with or different from one another, each having a formula -A−(M)r+, wherein A− is a carboxylate ion (COO−) or a sulfonate ion (SO3−), with the proviso that A− in at least one of the Salt groups is the carboxylate ion (COO−), and
M is alkali metal, alkaline earth metal, or ammonium (NH4), when M is alkali metal or ammonium, r=1; and when M is alkaline earth metal, r=0.5.