A 3-D (three dimensional) printing system is provided that includes a customized matrix having suitable material properties and geometric patterning to facilitate filling and retention of one or more filler material. The customized matrix defines the geometry and shape of the object. A filler mechanism that fills the customized matrix with one or more filler materials. The one or more filler materials retained within the customized matrix are cured or solidified to produce the object.

A 3-D (three dimensional) printing system is provided that includes a customized matrix having suitable material properties and geometric patterning to facilitate filling and retention of one or more filler material. The customized matrix defines the geometry and shape of the object. A filler mechanism that fills the customized matrix with one or more filler materials. The one or more filler materials retained within the customized matrix are cured or solidified to produce the object.

A composite core material and methods for making same are disclosed herein. The composite core material comprises mineral filler discontinuous portions disposed in a continuous encapsulating resin. Further, the method for forming a composite core material comprises the steps of forming a mixture comprising mineral filler, an encapsulating prepolymer, and a polymerization catalyst; disposing the mixture onto a moving belt; and polymerizing said encapsulating prepolymer to form a composite core material comprising mineral filler discontinuous portions disposed in a continuous encapsulating resin.

A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

According to exemplary inventive practice, ceramic powder or slurry is selectively deposited at many discrete locations on each of many fiberglass fabric substrates. The sizes and/or shapes of the ceramic deposits vary among the substrates. The substrates are selectively ordered and stacked so that perpendicular through-plane alignments of respective ceramic deposits form selected three-dimensional geometric shapes. The resultant stack of substrates, characterized by many three-dimensional ceramic inclusions, is impregnated with an elastomer or an epoxy that binds the ceramic-deposited substrates together, resulting in a finished composite product. Inventive composite structures can be multifariously designed and embodied to afford selected ballistic and/or structural and/or electromagnetic qualities. Another mode of inventive practice provides for incorporation of the above-described inventive composite product as a layer in a multilayer composite system that also includes a high strain-rate-sensitivity-hardening polymer layer, a hybrid composite fabric layer, a ceramic layer, and a polymeric ballistic fabric layer.

The invention relates to a method for producing a multi-material composite and to a multi-material composite.

Due to the stepwise change of material properties at the interface between different materials, in particular metallic and polymeric materials, cracks often develop in multi-material composites, whereby the service life being shortened.

The method according to the invention is based on a gradual adaptation of the material properties of the materials of a multi-material composite at the interface. A composite is formed from at least one metal layer, at least one fibre-reinforced or unreinforced first polymer layer and at least one fibre-reinforced or unreinforced second polymer layer formed from the polymer of the first polymer layer and nanoparticles, said second polymer layer being at least partially disposed between the metal layer and the first polymer layer, under the influence of elevated temperature or elevated temperature and elevated pressure, wherein nanoparticles of the second polymer layer diffuse into the first polymer layer so that a gradient layer is formed in which the nanoparticle concentration decreases in the direction of the first polymer layer.

The multi-material composite produced by the method according to the invention has a particularly long service life and can be used, for example, in drive shafts for the aviation, automotive, or shipping industry.

Tamper-resistant pharmaceutical compositions have been developed to reduce the likelihood of improper administration of drugs, especially drugs such as opioids. The tamper-resistant compositions retard the release of drug, even if the physical integrity of the formulation is compromised (for example, by chopping with a blade or crushing) and the resulting material is placed in water, snorted, or swallowed. However, when administered as directed, the drug is slowly released from the composition as the composition is passes through the GI tract.