Patent ID: 9169332
Filing Date: 2015-10-27
Classification: A61K,C08F

Abstract:
1. A polymerized composition having a polymer network formed by activation of a photopolymerizable and photocleavable (P&P) resin monomer using a first energy source, wherein portions of the polymer network are reactive to a second energy source and upon activation of the second source of energy, de-polymerize and/or degrade to elevate stress created during the polymerization of the polymer network created via the first energy source without substantially effecting the structural properties of the polymer network polymerized by the first energy source; wherein the polymer network is formed by activation of the photopolymerizable and photocleavable (P&P) resin monomer and BisGMA, TEGDMA, or UDMA resin; and wherein the content of the photopolymerizable and photocleavable (P&P) resin monomer is in the range of 20-70% by weight percent; and wherein the photopolymerizable and photocleavable (P&P) resin monomer is