Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate
2007-02-27
2007-02-27
Harlan, Robert D. (Department: 1713)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
C428S218000, C528S176000, C528S196000, C528S272000, C524S520000, C525S199000
Reexamination Certificate
active
10505598
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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Bruneau Jean-Michel
Ederle Yannick
Arkema France
Harlan Robert D.
Roland Thomas F.
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