Patent ID: 11926807
Assignee: ENF TECHNOLOGY CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A cleaning composition comprising: water; a fluorine compound; an alkanolamine compound; and a corrosion inhibitor,
wherein the corrosion inhibitor is a mixture of a first corrosion inhibitor represented by the following Formula 1 and a second corrosion inhibitor represented by the following Formula 2, wherein the corrosion inhibitor is a mixture mixed with 0.1 to 10 parts by weight of the second corrosion inhibitor, based on 1 part by weight of the first corrosion inhibitor:, , wherein:
R1 and R3 are each independently halogen, amino, hydroxy, cyano, nitro, a carboxyl group, C1-20 alkoxy, C1-20 alkyl, or C1-20 aminoalkyl;
R2 and R4 are each independently hydrogen or C1-20 alkyl; and
n and m are each independently an integer selected from 0 to 4.