Abstract:
The invention relates to a method for preparing a composite material having a homogeneous composition, containing at least one bioactive ceramic phase and at least one bioresorbable polymer. The inventive method is characterised in that it comprises the following steps: a) a bioactive ceramic phase in powder form is obtained, b) the bioactive ceramic powder is suspended in a solvent, c) a bioresorbable polymer is added to the suspension obtained in (b) and mixed to produce a viscous homogeneous dispersion of said bioactive ceramic powder in a solution formed by the solvent and the polymer, and d) the dispersion obtained in (c) is precipitated in an aqueous solution in order to obtain a homogeneous composite material. The invention also relates to the resulting composite material and to the use thereof in the production of implantable medical devices.
Abstract:
A ceramic package and a chip resistor obtained by forming, on a plastic ceramic green sheet comprising 100 parts by weight of a ceramic powder mainly composed of borosilicate glass, into which 10 to 30 parts by weight of an acrylic copolymer obtained by polymerizing 100 parts by weight of a (meth)acrylic acid ester and 1 to 10 parts by weight of a monomer having a functional group of a hydroxyl group, acid amide group, or amino group and having a Tg in the range of −30° C. to +10° C. is compounded, a conductor layer using a plastic conductive paste obtained by compounding, into 100 parts by weight of a conductive powder, 5 to 20 parts a mixture of an acrylic copolymer having a Tg of not more than −30° C. and an ethylcellulose-based binder, press forming the resultant single layer of ceramic green sheet, and calcining the resultant ceramic green sheet having the integrally formed bottom, opening and opening circumferential edge and a method for producing the same.
Abstract:
A method and apparatus for depositing a homogeneous pyrolytic coating on substrates. These coatings would include insulator, metal and semiconductor films on a glass substrate. The apparatus controls the size and distribution of the spray droplets to improve the uniformity of the coatings.
Abstract:
The invention relates to machine elements such as bearings and toothed wheels, which consist of a thermoplastic-based glass/plastic compound containing a sulfophosphate glass with a low melting point and with the following composition: 4 to 10% Li2O, 4 to 10% Na2O, 4 to 8% K2O, 1 to 2% CaO, 35 to 37% ZnO, 0 to 3% La2O3, 19 to 22% P2O5 and 19 to 22% SO3; and a high performance thermoplastic.
Abstract translation:本发明涉及诸如轴承和齿轮的机器元件,其由含有低熔点和具有以下组成的磺酸磷酸盐玻璃的热塑性玻璃/塑料化合物组成:4至10%Li 2 O,4至10%Na 2 O ,4〜8%K2O,1〜2%CaO,35〜37%ZnO,0〜3%La2O3,19〜22%P2O5和19〜22%SO3; 和高性能热塑性塑料。
Abstract:
Filters for filtering molten light metals comprise a reticular foam having a composition comprising graphite, wollastonite, silica and an alkali phosphate glass. The filters have a low hardness and can readily be machined accurately from large pieces of the filter material. In a preferred embodiment the exterior surfaces of the large pieces of filter are coated with a composition comprising graphite and a binder prior to firing and then machined.
Abstract:
Disclosed is a bulk block for manufacturing a prosthesis having high aesthetics and processability required for one-day dental prosthetic materials, which is a dental composite bulk block comprising a glass ceramic matrix and a polymer, wherein the glass ceramic matrix consists of an amorphous glass matrix and a crystalline phase dispersed in the glass matrix, the crystalline phase comprises as a main crystalline phase at least one selected from a leucite crystalline phase and a lithium disilicate crystalline phase, and has an average particle diameter of 0.01-1.0 μm, and the polymer is included in an amount of 20-40 wt % with respect to the weight of the total bulk block. The bulk block has the advantages of improved mechanical properties, being capable of preventing microleakage, exhibiting excellent aesthetics, and enabling machining.
Abstract:
A method includes impregnating a region of a glass sheet with a filler material in a liquid state. The glass sheet includes a plurality of glass soot particles. The filler material is solidified subsequent to the impregnating step to form a glass/filler composite region of the glass sheet.
Abstract:
A moldable article, including at least a container made of a barrier material, the container providing an interior space within which a plurality of glass particles are contained. The glass has a glass transition temperature and a crystallization onset temperature, the difference between the glass transition temperature and the crystallization onset temperature is at least about 5° K., and the glass is composed of at least two metal oxides, from 0 to less than 20% by weight SiO2, from 0 to less than 20% by weight B2O3, and from 0 to less than 40% by weight P2O5. The moldable article protects the glass particles by keeping them clean and moisture free prior to a molding operation. A method of making a moldable article includes: removing entrapped moisture from a plurality of glass particles, placing glass particles in a receptacle, and sealing the receptacle to form the article. The moldable article may be placed in a mold and, during the molding process, the barrier material essentially burns off while the glass particles coalesce into a molded article.
Abstract translation:一种可模制制品,其至少包括由阻挡材料制成的容器,所述容器提供内部空间,在所述内部空间中容纳多个玻璃颗粒。 该玻璃具有玻璃化转变温度和结晶起始温度,玻璃化转变温度和结晶起始温度之间的差值至少为5°K左右,玻璃由至少两种金属氧化物组成,从0至少 20重量%的SiO 2,0至小于20重量%的B 2 O 3和0至小于40重量%的P 2 O 5。 可模塑制品在模制操作之前保持玻璃颗粒的清洁和无湿气。 制造可成型制品的方法包括:从多个玻璃颗粒中除去截留的水分,将玻璃颗粒放置在容器中,并密封容器以形成制品。 可模塑制品可以放置在模具中,并且在模制过程中,阻挡材料在玻璃颗粒聚结成模制品时基本上被烧掉。
Abstract:
The present invention relates to a synergistic composition for preparing high concentration fullerene (C60)-glass and a method for preparing glass doped with fullerene (C60) in bulk monolith using the synergistic composition, which may be used as a nonlinear photonic material and more particularly as a nonlinear optical medium and optical limiter.
Abstract translation:本发明涉及一种用于制备高浓度富勒烯(C 60 C) - 玻璃的协同组合物和一种用于制备在大块整体中掺杂富勒烯(C 60 C 60)的玻璃的方法,该方法使用 协同组合物,其可以用作非线性光子材料,更特别地用作非线性光学介质和光学限制器。