Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-06-14
2011-06-14
Cain, Edward J (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C252S582000
Reexamination Certificate
active
07960450
ABSTRACT:
A flame retardant and light diffusing polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (A), 0.1 to 6 parts by weight of a light diffusing agent (B) with an average particle diameter of 1 to 10 μm, 0.03 to 1 part by weight of a light storing agent (C) with an average particle diameter of 1 to 20 μm and 0.03 to 1.5 parts by weight of a silicone compound (D) wherein the silicone compound (D) has a branched main chain structure and 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. The light diffusing sheet obtained by molding a polycarbonate resin composition of this invention can be used ideally in all applications where excellent flame retardance and a high degree of optical performance are needed such as in parts materials covering a light source such as, for example, in light diffusing sheets for direct backlighting units and edge lighting units for liquid crystal televisions, globe boxes for lighting devices and switches for various devices.
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Kawagoshi Akihito
Okada Koji
Brinks Hofer Gilson & Lione
Cain Edward J
Styron Europe GmbH
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