| 摘要 |
PROBLEM TO BE SOLVED: To obtain an agent for treatment of top coat paint film to impart stain resistance, which imparts stain resistance with which a stain resisting function can be imparted easily to a top-coat paint film which is the outermost paint film irrespective of the type or history of the top-coat paint film, with which a clean paint film is maintained over a long period of time and with which the function is retained even when it is shielded from light for long periods of time, and a method for the treatment of a top-coat paint film to impart stain resistance. SOLUTION: The agent for the treatment of a top-coat paint film to impart stain resistance includes (a) 3-10 mass% of a compound represented by formula (1): R<SP>1</SP>-(OCH<SB>2</SB>CH<SB>2</SB>)<SB>n</SB>-O-Si(OR<SP>2</SP>)<SB>3</SB>(wherein R<SP>1</SP>is a 1-6C alkyl group or a hydrogen atom; R<SP>2</SP>is a 1-6C alkyl group and three R<SP>2</SP>s may be mutually the same or different; and n is an integer of 2-4) or a partial hydrolysis condensate thereof, (b) 0.01-1 mass% of a catalyst to hydrolyze (a) the component, (c) 0.5-3 mass% of an alkylsulfosuccinic acid salt-based surfactant and (d) 86-96.49 mass% of a≤3C alcohol-based solvent. COPYRIGHT: (C)2009,JPO&INPIT
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