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    • 8. 发明授权
    • Method for forming composite simulated ivory materials
    • 形成复合模拟象牙材料的方法
    • US5133920A
    • 1992-07-28
    • US674817
    • 1991-03-25
    • Linneaus C. DormanJohn A. Rice
    • Linneaus C. DormanJohn A. Rice
    • B29C43/00B29C43/10B29C43/14B44F9/06C08K3/32
    • B29C43/003B29C43/14B44F9/06C08K3/32B29C43/10B29K2105/16
    • A family of composite materials consisting of a mineral filler and a synthetic polymer are provided which are characterized by properties similar to natural ivory. The ivory-like composite material contains about 25 to about 75 percent by weight of the mineral filler, preferably a calcium phosphate. In addition, the composite material contains about 75 to about 25 percent by weight of the polyamino acid, preferably an .alpha.-amino acid such as poly(gamma-methyl L-glutamate). The composite material is formed using in situ polymerization techniques, thereby ensuring intimate and homogeneous blending of the mineral and polymer phases as well as facile preparation at ambient temperatures. In addition, the ivory-like composite material is molded using an isostatic compression molding technique. The composite material may be molded to form virtually any desired shape for decorative or practical purposes, or for subsequent carving. The resulting ivory-like composite materials are characterized by properties similar to natural ivory.
    • 提供由矿物填料和合成聚合物组成的复合材料族,其特征在于类似于天然象牙的性质。 象牙状复合材料含有约25至约75重量%的矿物填料,优选磷酸钙。 此外,复合材料包含约75至约25重量%的聚氨基酸,优选α-氨基酸,例如聚(γ-甲基L-谷氨酸)。 使用原位聚合技术形成复合材料,从而确保矿物和聚合物相的均匀和均匀共混以及在环境温度下的容易制备。 此外,象牙状复合材料使用等静压压模技术成型。 复合材料可以被模制以形成用于装饰或实际目的的几乎任何所需的形状,或用于随后的雕刻。 得到的象牙复合材料的特征是类似于天然象牙的性质。