DETERGENT COMPOSITION FOR REMOVING CHEMICAL CONVERSION COATING

Japanese Patent JP3478870

B2

PURPOSE: To efficiently remove a chemical conversion coating applied on the surface of a steel member and prevent the delayed failure due to penetration of phosphorus without leading to secondary delayed failure by using chelating agents, nonionic surfactants and water as the constituents.
CONSTITUTION: 2-20 pts.wt. of one or more chelating agents selected from an oxycarboxylic acid, an aminocarboxylic acid and an aminophosphonic acid and 5-40 pts.wt. of one or more nonionic surfactants selected from a polyoxyethylene alkyl ether, a polyoxyethylene alkyl phenyl ether, a sorbitan ester of a fatty acid, and an ethylene/propylene block polymer are dissolved in water to give the objective composition having pH of 5 to 10.

WO/2011/079459	COMBINATION OF POLYMER AND SURFACTANT FOR IMPROVED LAUNDRY
WO/2001/009275	REMOVAL OF PIGMENT-CONTAINING RESIDUES IN THE PHARMACEUTICAL OR COSMETICS INDUSTRY
WO/1994/011475	AQUEOUS CLEANING AND BLEACHING COMPOSITION CONTAINING HYDROPHOBIC LIQUID, H2O2 AND TWO NONIONIC SURFACTANTS WITH DIFFERENT HLBS

Rakuji Ueda
Haruo Iwasa
Koji Ohta
Toshio Yabuchi

JP15132994A

December 15, 2003

July 01, 1994

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Asahi Chemical Industry Co., Ltd.

C11D1/66; C11D3/20; C11D3/33; (IPC1-7): C11D1/66; C11D3/20; C11D3/33

JP5751267A
JP4120199A
JP58126992A
JP53100131A
JP5410236A
JP5410237A
JP55141576A
JP55141577A
JP57114673A
JP6142809A
JP44045B2

Keiichiro Saikyo

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