Patent ID: 9090020
Filing Date: 2015-07-28
Classification: B29C,B33Y,C08G,C08L,G03F,Y10T

Abstract:
1. A radiation curable composition comprising: a. from about 50 wt % to about 70 wt % of a cycloaliphatic diepoxide; b. from about 5 wt % to about 15 wt % of a polyol; c. from about 5 wt % to about 15 wt % of a monofunctional oxetane having an OH group; d. from about 10 wt % to about 20 wt % of an aromatic diacrylate selected from the group consisting of a bisphenol A-based diacrylate, a bisphenol S-based diacrylate, and a bisphenol F-based diacrylate; e. a radical photoinitiator; and f. a cationic photoinitiator; wherein the tensile strength of the cured composition, measured 1 week after UV post-cure in a post-curing apparatus, is from about 40 MPa to about 75 MPa; and said radiation curable composition contains greater than 0.10 equivalents of hydroxyl groups per 100 grams of said composition.