| 摘要 |
PURPOSE: A composition for removing advertising stickers and labels is provided, to allow the stickers and labels to be removed cleanly and easily by weakening the adhesive strength between the stickers or labels and a board or a wall. CONSTITUTION: The composition comprises 5-22 wt% of an adhesive rigid resin which has a glass transition temperature of 40-130 deg.C and is soluble in the used solvent; and 78-95 wt% of a mixture of a high boiling point organic solvent and a low boiling point organic solvent whose boiling points are different each other. Preferably the adhesive rigid resin is polystyrene, poly(styrene-co-maleic anhydride), polyacrylonitrile, poly(styrene-co-acrylonitrile), poly(vinyl chloride-co-vinyl acetate), carboxyl group-containing poly(vinyl chloride-co-vinyl acetate), poly(methyl acrylate-co-ethyl acrylate), carboxyl group-containing poly(methyl acrylate-co-ethyl acrylate), poly(methyl methacrylate-co-vinyl acetate), or carboxyl group-containing poly(methyl methacrylate-co-vinyl acetate). Preferably the solvent mixture comprises 20-90 wt% of a high boiling point organic solvent and 10-80 wt% of a low boiling point organic solvent.
|
