April 11, 2008 — ManTech SRS Technologies (Nasdaq: MANT) has developed Corin XLS Polyimide using Polyhedral Oligomeric Silsesquioxanes (POSS) nanotechnology made by Hybrid Plastics. Corin XLS is a colorless, organic/inorganic nanocomposite that promises unsurpassed levels of optical clarity, oxidative stability and stability to solar radiation. According to ManTech, this fluorinated polyimide offers the highest atomic oxygen durability, as well as the highest light transmission of all CORIN grades, making it a lightweight substitute material for glass used in space photovoltaic arrays in low earth orbit.

ManTech International is a technology provider for the federal government, including the Departments of Defense and State.

POSS is based on silicon-derived building blocks that provide nanometer-scale control to dramatically improve the thermal and mechanical properties of traditional polymers while offering easy incorporation using existing manufacturing protocols. These compounds have an average diameter of just 1.5 nanometers. POSS nanomaterials can be used both as direct replacements for hydrocarbon based materials or as low-density performance additives to traditional plastics. According to Hybrid Plastics, they release no VOCs, and, thereby, produce no odor or air pollution. They are biocompatible, recyclable, non-flammable, and competitively priced with traditional polymer feedstocks. Hybrid claims that POSS Nanostructured materials can be readily incorporated into virtually any existing polymer system through blending, grafting or copolymerization.

POSS nanobuilding-blocks were hailed by R&D magazine as one of the 100 globally most technologically significant new products for the year 2000, and Hybrid Plastics was one of five finalists in Small Times magazine’s 2002 Best of Small Tech Award. In December 2005, a Presidential Determination deemed POSS nanotechnology to be in the strategic national interest of the United States.