Process for producing shaped articles having improved surfaces

Details Process for producing shaped articles having improved surfaces Process for producing shaped articles having improved surfaces

C - Chemistry, Metallurgy

08

J

18/1182

C08J 7/00 (2006.01) B29C 71/00 (2006.01) C08J 7/12 (2006.01)

Patent

CA 1184367

ABSTRACT OF THE DISCLOSURE A process for producing shaped articles having improved surfaces, characterized by subjecting a shaped article of a polymer derived from a monomeric material comprising an acrylate and/or methacrylate to at least one of a hot water treatment, an aqueous alkali solution treatment and an aqueous acid solution treatment. Shaped articles obtained by this process have an advantage that when the surfaces thereof are stained the removal of the stains is quite easy, Moreover, they are hydrophilic and have excellent wettability by water. Therefore, said shaped articles are extremely suitable for use as contact lens.

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