Abstract: Disclosed are interfacially modified particulate and polymer composite material for use in injection molding processes, such as metal injection molding and additive process such as 3D printing. The composite material is uniquely adapted for powder metallurgy processes. Improved products are provided under process conditions through surface modified powders that are produced by extrusion, injection molding, additive processes such as 3D printing, Press and Sinter, or rapid prototyping.
Abstract: The product of a molten alkali metal metalate phase separation can be processed into a purified metal from a metal source. Metal sources include native ores, recycled metal, metal alloys, impure metal stock, recycle materials, etc. The method uses a molten alkali metal metalate as a process medium or solvent in purifying or extracting high value metal or metal oxides from metal sources. Vitrification methods using the silicate glass separation phase can be prepared as is or can be prepared with a particulate phase distributed throughout the silica glass phase and encapsulated and fixed within the continuous glass phase. Tungsten metal can be obtained from an alkali metal tungstate. A typically finely divided tungsten metal powder can be obtained from a variety of tungsten sources including recycled tungsten scrap, tungsten carbide scrap, low grade tungsten ore typically comprising tungsten oxide or other form of tungsten in a variety of oxidation states.
Abstract: The invention relates to a hot melt dispensable polymeric composite and process for making and using the composite. Particulates of adequate particle size are mixed with a polymer that exhibits low viscosities at temperatures typically provided by hot-melt glue guns to form rods that vary significantly in density from the base polymer. Novel articles can be manufactured by dispensing the composite from a glue gun into molds or by placement of the melt molding compound into preformed cavities within an end article.
Type:
Grant
Filed:
January 16, 2009
Date of Patent:
July 16, 2013
Assignee:
Tundra Composites, LLC
Inventors:
Kurt Emil Heikkila, John S. Kroll, Rodney K. Williams
Abstract: The invention relates to product categories using a metal polymer composite having properties that are enhanced or increased in the composite. Such properties include color, magnetism, thermal conductivity, electrical conductivity, density, improved malleability, abrasion resistant, structural strength, and ductility and thermoplastic or injection molding properties. Useful articles and shapes may be made from the polymer composite using processes such as injection molding.
Abstract: The invention relates to a nonmetallic inorganic or mineral particulate polymer composite having enhanced viscoelastic and rheological properties.
Type:
Application
Filed:
April 28, 2010
Publication date:
November 4, 2010
Applicant:
Tundra Composites, LLC.
Inventors:
Kurt E. Heikkila, Rodney K. Williams, John S. Kroll
Abstract: The invention relates to an extrusion method and to an extrudable metal polymer composite having increased density, improved viscoelastic properties, malleability and ductility and thermoplastic extrusion or injection molding properties.