FLAME RETARDANT AND LIGHT DIFFUSING POLYCARBONATE RESIN COMPOSITION AND LIGHT DIFFUSING SHEET THEREOF
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United States of America Patent
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Issued Date -
Oct 15, 2009
app pub date -
Nov 17, 2006
filing date -
Jun 7, 2006
priority date (Note) -
Abandoned
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Abstract
A flame retardant and light diffusing polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (A), 0.1 to 8 parts by weight of a light diffusing agent (B) and 0.01 to 1.5 parts by weight of a silicone compound (C), wherein the main chain of the silicone compound (C) is branched and the silicone compound (C) contains organic functional groups and the presence of aromatic groups is essential as the organic functional groups but the presence of hydrocarbon groups other than aromatic groups is optional as the organic functional groups other than terminal groups and a light diffusing sheet molded thereof. The light diffusing sheet obtained by molding a polycarbonate resin composition of the present invention with flame retardance and light diffusing properties has excellent flame retardance without adversely affecting the light diffusing properties and luminance of the light diffusing polycarbonate resin and is ideal for use in all applications requiring a high degree of optical performance.
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