Substantially phosphate free acidic cleaner for plastics

Details Substantially phosphate free acidic cleaner for plastics Substantially phosphate free acidic cleaner for plastics

C - Chemistry, Metallurgy

11

D

C11D 3/60 (2006.01) C11D 3/20 (2006.01)

Patent

CA 2137115

An effective phosphate free and organic solvent free aqueous acidic cleaner for soiled plastic surfaces is a low foaming aqueous solution or dispersion that consists es- sentially of water and: (A) hydroxycarboxylic and/or dicarboxylic acid or acids; (B) nonionic surfactant; and, optionally, one or more of the following: (C) salts including anions of hydroxycalboxylic and/or dicarboxylic acid or acids, preferably anions of the same acid or acids as specified for part (A); and (D) a sufficient amount of hydrotrope material to produce a stable homogeneous solu- tion or dispersion of components (A) through (C) in water; and (E) a sufficient amount of a biocidal material to inhibit growth of any bacteria and/or fungi that may be present in the composition.

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