초록 ▼

Anti-fog and scratch resistant polyurethane compositions are disclosed which include an isocyanate prepolymer, a hydrophilic polyol and an isocyanate-reactive surfactant. The reaction product of the component produces enhanced properties having permanent anti-fog and scratch-resistant characteristic

Anti-fog and scratch resistant polyurethane compositions are disclosed which include an isocyanate prepolymer, a hydrophilic polyol and an isocyanate-reactive surfactant. The reaction product of the component produces enhanced properties having permanent anti-fog and scratch-resistant characteristics. These compositions may be used as coatings, films and self-supporting articles. Plastic substrates coated with these compositions may be subsequently subjected to thermoforming, such as molding and shaping, without loss of their properties.

대표청구항 ▼

[ We claim:] [1.] A polymer composition which, when cured, provides a scratch-resistant, permanent anti-fog surface comprising:i) an isocyanate prepolymer having unreacted isocyanate groups; andii) an organic solvent solution comprising a hydrophilic polyol compound and a surfactant comprising a non

[ We claim:] [1.] A polymer composition which, when cured, provides a scratch-resistant, permanent anti-fog surface comprising:i) an isocyanate prepolymer having unreacted isocyanate groups; andii) an organic solvent solution comprising a hydrophilic polyol compound and a surfactant comprising a non-ethoxylated hydrocarbon chain with greater than 16 carbon atoms containing an isocyanate-reactive group, said surfactant being selected from the group consisting of anionic surfactants, cationic surfactants and mixtures thereof, said surfactant having distinct hydrophobic and hydrophilic segments.