Patent ID: 7731881
Filing Date: 2010-06-08
Classification: C08J,C08K,C08L

Abstract:
1. A method for making a fog resistant thermoplastic article, comprising: blending an aromatic thermoplastic polymer and an ionic anti-fog additive to form a blend; molding the blend to form an aromatic thermoplastic polymer article; and exposing the aromatic thermoplastic polymer article to an aqueous environment sufficient to result in a fog resistant aromatic thermoplastic polymer article, wherein the exposing comprises exposing to steam, immersing in water, spraying with water, misting with water, or combinations comprising at least one of the foregoing; wherein, without adding an anti-fog coating to the aromatic thermoplastic polymer article, the fog resistant aromatic thermoplastic polymer article has a greater fog resistance when compared to the aromatic thermoplastic polymer article prior to exposing; and wherein the exposing is performed for greater than or equal to about 20 minutes.