2 results about "Dihedral angle" patented technology

Novel functional poly(organosiloxane) resin compositions, methods of producing novel poly(organosiloxane) coating compositions, and coated substrates having improved properties suitable for, e.g., optical applications for achieving predetermined properties of refractive index, absorption coefficient and other properties. Specific embodiments comprise silicon precursors having a substituent that contains a fused aromatic structure exhibiting a butterfly shape, wherein the half-planes defined by aromatic rings joined by intermediate N and S atoms exhibit a dihedral angle of <165 #, whereas the C—S—C angle of the folded thiazine, in particular 1,4-thiazine, ring is less than 110 #. In on embodiment, the silicon precursor has a substituent that comprises an optionally substituted thiazine ring.

Various embodiments disclosed relate to a shaped abrasive particle. The shaped abrasive particle includes at least four major faces and at least six edges joining the four major faces. One of the at least four major faces is a first rake face, a second of the at least four major faces is a second rake face. The first and second rake faces are predominantly joined along only one common edge. A dihedral angle between the first rake face and the second rake face is in a range of from about 71 degrees to about 170 degrees.