| 摘要 |
<p>A polymerisable dental compsn. consists of 20-100 wt. pts. of >=1 methacrylate monomer having 2-4 polymerisable double bonds, 0-80 wt. pts. of inorganic particulate filler, 0-5.0 wt. %, based on methacrylate monomer, of silane coupling agent, 0.5-5.0 wt. %, based on methacrylate monomer of hydroperoxide oxidising agent and 0.3-2.0 wt. % based on methacrylate monomer of a substd. thiourea reducing agent of formula (I):- (where X is H or Y; Y is 1-8C alkyl opt. substd. by Cl, OH or mercapto; 5-6C cycloalkyl; 3-4C alkenyl; 6-8C aryl; Cl-, OH-, CH3O- or sulphonyl substd. phenyl; 2-8C aryl opt. substd. by Cl or CH3O; or 7-8C aralkyl opt. substd. by Cl or CH3O).</p> |
