Patent ID: 7660427
Filing Date: 2010-02-09
Classification: A61F,B33Y,C08F

Abstract:
1. A hearing aid housing comprising the reaction product of a curable composition of: (a) at least one urethane acrylate oligomer comprising an aliphatic polyester urethane diacrylate present in amounts of about 30% to about 45% by weight of said composition; (b) at least one reactive diluent comprising isobornyl acrylate present in amounts of about 40% to about 50% by weight of said composition; (c) 2(2-ethoxyethoxy) ethyl acrylate present in amounts of about 5% to about 25% by weight of said composition; and (d) a photoinitiator present in amounts of about 0.5% to about 10% by weight of said composition; wherein said composition when cured produces a tear strength of at least about 75 pli.