Norberto Silvi

Title: Norberto Silvi: Innovator in Electrically Conductive Compositions

Introduction

Norberto Silvi is a notable inventor based in Selkirk, NY (US). He has made significant contributions to the field of thermoplastic compositions, particularly in the area of electrically conductive materials. With a total of 2 patents, his work has implications for various applications in technology and materials science.

Latest Patents

Silvi's latest patents include innovative compositions that enhance the performance of thermoplastic materials. One of his patents focuses on electrically conductive microwave shielding compositions. This thermoplastic composition consists of approximately 82 wt % to 92 wt % of a thermoplastic resin, which includes poly(phenylene ether) and polystyrene, along with 3 wt % to 13 wt % of a carbon-based filler. The carbon-based filler is characterized by a specific surface area of at least 650 square meters per gram and an Oil Absorption Number of at least 250 milliliters per 100 grams. The composition demonstrates a dielectric constant ε' ranging from 3.5 to 10 and a dissipation loss ε″ between 0.25 and 5, measured at frequencies between 75 GHz and 110 GHz. A ⅛-inch-thick molded sample of this composition exhibits a Percent Absorbed Power of at least 50% when tested in Transmission mode at the specified frequencies.

Another of Silvi's patents involves electrically conductive polycarbonate-siloxane compositions. This thermoplastic composition includes a polycarbonate component, a poly(carbonate-siloxane) copolymer, and 4 wt % to 25 wt % carbon black. The total siloxane content in this composition ranges from 2 wt % to 14 wt %. These thermoplastic compositions show improved physical properties compared to those that do not incorporate the poly(carbonate-siloxane) copolymer, including enhancements in volume resistivity, melt viscosity, impact strength, puncture impact energy, and surface resistivity.

Career Highlights

Norberto Silvi is currently associated with Shpp Global Technologies B.V., where he continues to innovate and develop new materials. His work has positioned him as a key figure in the advancement of thermoplastic technologies.

Collaborations

Silvi collaborates with talented individuals in his field, including Edward Kung and Peter Vollen