申请人:Kerr Manufacturing Company (a Delaware corporation)
公开号:EP0255286A2
公开(公告)日:1988-02-03
A dental impression material comprises a pre-polymer formed by reacting a polyol or polyester polyol, a diisocyante, and a hydroxyacrylate or methacrylate, along with a metal catalyst, plasticizer, photosensitizer, reducing agent, filler and other additives. The resultant polymer portion is a long-chain aliphatic polyester-polyurethane molecule, which when end-capped with hydroxyacrylate moieties, is photo-polymerizable to yield a tear-resistant highly flexible medium-durometer elastomer, suitable for use as a dental impression material.
一种牙科印模材料由预聚物和金属催化剂、增塑剂、光敏剂、还原剂、填料和其他添加剂组成,预聚物由多元醇或聚酯多元醇、二异氰酸酯和羟基丙烯酸酯或甲基丙烯酸酯反应形成。由此产生的聚合物部分是一种长链脂肪族聚酯-聚氨酯分子,当以羟基丙烯酸酯分子为端盖时,可进行光聚合,产生一种抗撕裂的高弹性中等硬度弹性体,适合用作牙科印模材料。