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    • 4. 发明授权
    • Process for producing plaster models for use in dentistry
    • 生产用于牙科的石膏模型的工艺
    • US4585667A
    • 1986-04-29
    • US687563
    • 1984-12-28
    • Heijo Hubner
    • Heijo Hubner
    • A61C13/34A61K6/083A01N1/02B05D3/06
    • A61K6/083
    • The physical properties, especially resistance to abrasion, to bending and to pressure, of plaster models for use in dentistry are improved in that a plaster model obtained in a manner known in the art is impregnated with (a) at least one photopolymerizable ester of acrylic and/or methacrylic acid, (b) at least one photopolymerization initiator, and (c) optionally at least one photopolymerization activator--(a), (b) and (c) being present in liquid or dissolved state--and the impregnated plaster model is irradiated with light suitable to initiate photopolymerization by the photoinitiator.
    • 改进了用于牙科用途的石膏模型的物理性能,特别是耐磨性,耐弯曲性和压力性,其中以本领域已知的方式获得的石膏模型浸渍有(a)至少一种丙烯酸的可光聚合的酯 和/或甲基丙烯酸,(b)至少一种光聚合引发剂,和(c)任选的至少一种光聚合活化剂 - (a),(b)和(c)以液体或溶解状态存在, 用适合于引发光引发剂的光聚合的光照射。