Process for treating hard tissues
    9.
    发明授权
    Process for treating hard tissues 有权
    硬组织治疗方法

    公开(公告)号:US6159012A

    公开(公告)日:2000-12-12

    申请号:US387449

    申请日:1999-09-01

    CPC分类号: A61K6/0023 Y10S522/908

    摘要: In a first aspect, a method for treating hard tissue that includes: (a) applying to hard tissue a composition that includes a cationically active functional group, a free radically active functional group, and a polymerization initiator capable of initiating free radical polymerization, where the number of moles of cationically active functional groups per gram of composition is no greater than about 0.0075; and (b) exposing the composition to polymerization conditions to form an adhesive bonded to the hard tissue.In a second aspect, a method for treating hard tissue that includes: (a) applying to hard tissue a first polymerizable composition that includes a free radically active functional group and a polymerization initiator capable of initiating free radical polymerization, but is essentially free of polymerizable components having cationically active functional groups and is capable of forming an adhesive bonded to the hard tissue upon exposure to polymerization conditions; (b) applying a second polymerizable composition; and (c) exposing the second composition to polymerization conditions to form a hardened composition adhered to the hard tissue. The second composition includes (i) a cationically active functional group and (ii) an polymerization initiator capable of initiating cationic polymerization.

    摘要翻译: 第一方面,一种硬组织处理方法,包括:(a)向硬组织施加包含阳离子活性官能团,自由基活性官能团和能引发自由基聚合的聚合引发剂的组合物,其中 每克组合物中阳离子活性官能团的摩尔数不大于约0.0075; 和(b)将组合物暴露于聚合条件以形成粘合到硬组织的粘合剂。 在第二方面,一种硬组织处理方法,包括:(a)向硬组织施加包含自由基活性官能团的第一可聚合组合物和能引发自由基聚合的聚合引发剂,但基本上不含可聚合的 具有阳离子活性官能团的组分并且能够在暴露于聚合条件时形成粘合到硬组织的粘合剂; (b)施加第二可聚合组合物; 和(c)将第二组合物暴露于聚合条件以形成粘附到硬组织的硬化组合物。 第二组合物包括(i)阳离子活性官能团和(ii)能够引发阳离子聚合的聚合引发剂。

    Ternary photoinitiator system for curing of epoxy resins
    10.
    发明授权
    Ternary photoinitiator system for curing of epoxy resins 有权
    用于固化环氧树脂的三元光引发剂体系

    公开(公告)号:US6043295A

    公开(公告)日:2000-03-28

    申请号:US362410

    申请日:1999-07-28

    摘要: Photocurable, addition polymerizable compositions contain an epoxy resin and a photoinitiator system containing (a) an epoxy resin and (b) a photoinitiator system comprising: (i) an iodonium salt; (ii) a visible light sensitizer; and (iii) an electron donor compound, wherein the photoinitiator system has a photoinduced potential of at least about 0 mV relative to a standard solution of 2.9.times.10.sup.-5 moles/g diphenyl iodonium hexafluoroantimonate and 1.5.times.10.sup.-5 moles/g camphorquinone in 2-butanone. The compositions cure on exposure to light in the visible spectrum and are useful in a variety of applications, including dental adhesives and composites.

    摘要翻译: 可光固化的可加成聚合组合物含有环氧树脂和含有(a)环氧树脂的光引发剂体系和(b)光引发剂体系,其包含:(ⅰ)碘鎓盐; (ii)可见光敏化剂; 和(iii)电子给体化合物,其中光引发剂体系相对于2.9×10 -5摩尔/ g二苯基碘鎓六氟锑酸盐和1.5×10-5摩尔/ g樟脑醌的标准溶液,具有至少约0mV的光诱导电位 丁酮。 组合物在可见光谱下暴露于光下固化,并且可用于各种应用,包括牙科粘合剂和复合材料。