申请人:Shofu Inc.
公开号:EP3733153A1
公开(公告)日:2020-11-04
An object of the present invention is to provide a two-paste type dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability.
The two-paste type dental resin-reinforced glass ionomer cement composition of the present invention consists of two pastes, wherein at least one of the two pastes contains (a) acid-reactive glass powder, (b) polymer of acidic group-containing polymerizable monomer, (c) water, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer, (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and (f) polymerization initiator, wherein the paste containing the (c) water does not contain at least one of the (a) acid-reactive glass powder and the (b) polymer of acidic group-containing polymerizable monomer.
本发明的目的是提供一种双膏型牙科树脂增强玻璃离子水泥组合物,这种组合物即使在潮湿条件下也能表现出很高的表面固化性,即使在固化初期接触到水分也很难使表面变得浑浊,在固化产品中表现出很高的机械性能、低吸水膨胀性和优异的抗着色性,而且还具有优异的储存稳定性。
本发明的双浆料型牙科树脂增强玻璃离子水泥组合物由两种浆料组成,其中至少一种浆料含有:(a) 酸反应玻璃粉;(b) 含酸性基团的可聚合单体聚合物;(c) 水;(d) 含羟基的(甲基)丙烯酸酯基可聚合单体、(f) 聚合引发剂,其中含有(c)水的浆料不含(a)酸反应玻璃粉和(b)含酸基团可聚合单体的聚合物中的至少一种。