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    Method for forming composite simulated ivory materials
    4.
    发明授权
    Method for forming composite simulated ivory materials 失效
    形成复合模拟象牙材料的方法

    公开(公告)号：US5133920A

    公开(公告)日：1992-07-28

    申请号：US674817

    申请日：1991-03-25

    申请人： Linneaus C. Dorman ,  John A. Rice

    发明人： Linneaus C. Dorman ,  John A. Rice

    IPC分类号： B29C43/00 ,  B29C43/10 ,  B29C43/14 ,  B44F9/06 ,  C08K3/32

    CPC分类号： B29C43/003 ,  B29C43/14 ,  B44F9/06 ,  C08K3/32 ,  B29C43/10 ,  B29K2105/16

    摘要： 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.

    摘要翻译： 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。

    Ceramic electrical insulation for electrical coils, transformers, and magnets
    5.
    发明授权
    Ceramic electrical insulation for electrical coils, transformers, and magnets 有权
    电线圈，变压器和磁铁的陶瓷电绝缘

    公开(公告)号：US06407339B1

    公开(公告)日：2002-06-18

    申请号：US09390379

    申请日：1999-09-03

    申请人： John A. Rice ,  Craig S. Hazelton ,  Paul E. Fabian

    发明人： John A. Rice ,  Craig S. Hazelton ,  Paul E. Fabian

    IPC分类号： H01B700

    CPC分类号： H01F5/06 ,  H01B7/292 ,  H01F6/06

    摘要： A high temperature electrical insulation is described, which is suitable for electrical windings for any number of applications. The inventive insulation comprises a cured preceramic polymer resin, which is preferably a polysiloxane resin. A method for insulating electrical windings, which are intended for use in high temperature environments, such as superconductors and the like, advantageously comprises the steps of, first, applying a preceramic polymer layer to a conductor core, to function as an insulation layer, and second, curing the preceramic polymer layer. The conductor core preferably comprises a metallic wire, which may be wound into a coil. In the preferred method, the applying step comprises a step of wrapping the conductor core with a sleeve or tape of glass or ceramic fabric which has been impregnated by a preceramic polymer resin. The inventive insulation system allows conducting coils and magnets to be fabricated using existing processing equipment, and maximizes the mechanical and thermal performance at both elevated and cryogenic temperatures. It also permits co-processing of the wire and the insulation to increase production efficiencies and reduce overall costs, while still remarkably enhancing performance.

    摘要翻译： 描述了高温电绝缘，其适用于任何数量的应用的电绕组。 本发明的绝缘体包括固化的预陶瓷聚合物树脂，其优选为聚硅氧烷树脂。 用于绝缘电气绕组的方法，其旨在用于高温环境，例如超导体等，有利地包括以下步骤：首先将预陶瓷聚合物层施加到导体芯，以用作绝缘层，以及 第二，固化前陶瓷聚合物层。 导体芯优选地包括可以卷绕成线圈的金属线。 在优选的方法中，施加步骤包括用已经被预陶瓷聚合物树脂浸渍的玻璃或陶瓷织物的套筒或带包裹导体芯的步骤。 本发明的绝缘系统允许使用现有的加工设备制造导电线圈和磁体，并且在升高和低温两个温度下最大化机械和热性能。 它还允许电线和绝缘体的共同加工，以提高生产效率并降低总体成本，同时仍然显着提高性能。