申请人:Henkel & Cie G.m.b.H.
公开号:US03941772A1
公开(公告)日:1976-03-02
Azacycloalkane-2,2-diphosphonic acids having the formula ##EQU1## wherein R is a member selected from the group consisting of hydrogen and alkyl having from 1 to 3 carbon atoms and n is an integer from 3 to 5; as well as their water-soluble salts. The azacycloalkane-2,2-diphosphonic acids are excellent sequestering agents especially for alkaline earth metal ions. They are stabilizers for percompounds and are useful in the delaying of the setting times for gypsum. In addition, the compound are useful in cosmetic preparations such as toothpastes and mouthwashes where they prevent formation of tartar and plaque and are useful in therapy in the treatment of diseases related to the abnormal deposition or dissolution of difficulty soluble calcium salts in the animal body.
具有以下式子的Azacycloalkane-2,2-二膦酸:##EQU1## 其中R是从氢和1至3个碳原子的烷基中选择的成员,n是从3到5的整数;以及它们的水溶性盐。Azacycloalkane-2,2-二膦酸是优秀的络合剂,特别是对于碱土金属离子。它们是过氧化物的稳定剂,并且在延缓石膏固化时间方面非常有用。此外,这些化合物在化妆品制剂中非常有用,例如牙膏和漱口水,它们可以防止牙石和菌斑的形成,并且在治疗与动物体内难溶性钙盐的异常沉积或溶解相关的疾病方面非常有用。