AGENT FOR THE TREATMENT OF TOP-COAT PAINT FILMS TO IMPART STAIN RESISTANCE AND A METHOD FOR THE TREATMENT OF TOP-COAT PAINT FILMS TO IMPART STAIN-RESISTANCE

摘要

An agent for imparting stain resistance to a top-coat paint film that has (a) from 3 to 10 mass % of a compound represented by Formula (1) or a partial hydrolysis condensate thereof, wherein Formula (1) is R¹—(OCH₂CH₂)_n—O—Si(OR²)₃ wherein R¹ is an alkyl group having 1 to 6 carbon atoms or a hydrogen atom, R² is the same or different and is an alkyl group having 1 to 6 carbon atoms, and n is an integer value from 2 to 4, (b) from 0.01 to 1 mass % of a catalyst with which the aforementioned (a) component can be hydrolyzed, (c) 0.5 to 3 mass % of an alkylsulfosuccinic acid salt based surfactant, and (d) from 86 to 96.49 mass % of an alcohol based solvent which has not more than 3 carbon atoms. A method for imparting stain resistance to a top-coat paint film employing the disclosed agent is also provided.