Light diffusing polymer composition, method of producing the same, and articles made therefrom

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United States of America Patent

PATENT NO 9029476
APP PUB NO 20130317175A1
SERIAL NO

13850435

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Abstract

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A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymeric particles, wherein the diffuser polymeric particles are characterized by an average diameter from 2.0 to 8 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a refractive index, RI, from 1.50 to 1.55; a crosslinking level great than 4%; and wherein the diffuser polymeric particles are produced using at least one alkyl(meth)acrylate monomer copolymerized with from 5 wt % to 25 wt % crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers, and combinations thereof, and optionally, one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes is provided.

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Patent Owner(s)

  • ROHM AND HAAS COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Hailan Warrington, US 46 139
Le, Luu Erdenheim, US 1 2
Lundquist, Eric G North Wales, US 30 263

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