Any of a class of inorganic compounds that have structures characterized by silicate tetrahedrons (a central silicon atom surrounded by four oxygen atoms at the corners of a tetrahedron) arranged in chains. Two of the oxygen atoms of each tetrahedron are shared with other tetrahedrons, forming a chain that is potentially infinite in length. Mineral examples include the pyroxenes and the amphiboles.
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US Patent Issued to ExxonMobil Chemical Patents on Sept. 7 for "Scratch and Mar Resistant Polymer Compositions, Methods for Making and Articles Made from the Same" (American, Belgian Inventors)
Sep 08, 2010; ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 7,790,795, issued on Sept. 7, was assigned to ExxonMobil Chemical Patents...