Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 27, 2007
Patent Application Number
10505598
Date Filed
February 18, 2003
Patent Citations Received
Patent Primary Examiner
Patent abstract
Thermoplastic composition comprising a (meth)acrylic (co)polymer and particles of hollow glass spheres—or a mixture of particles of hollow glass spheres and particles of a mineral and/or organic compound—the said particles scattering light:having a mean size of 0.5 μm to 200 μm;possessing a refractive index different from that of the transparent thermoplastic by at least ±0.05; andbeing used in an amount of 5 ppm to 1000 ppm by weight with respect to the total composition.Corresponding fashioned articles, especially sheets for backlight units.
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