| 摘要 |
PURPOSE:To provide a novel removing agent containing dimethyl sulfoxide and an organic solvent, having excellent peeling performance of a polyurethane firmly attached to a mold of lens, etc., made of glass, metal, etc., and free from problems of apparatus corrosion. CONSTITUTION:The objective removing agent contains (A) dimethyl sulfoxide and (B) an organic solvent composed of halogenated hydrocarbon (e.g., methylene chloride, trichloroethylene, perchloroethylene and 1,1,1-trichloroethane), an aromatic hydrocarbon (e.g., benzene, toluene or xylene), etc., at a volume ratio (A/B) of 10/90-90/10, especially preferably 20/70-70/20. |
