Patent ID: 9547108
Date: 2017-01-17
CPC Classifications: G02B

Claim:
1. A translucent, light-diffusing material comprising a blend composition of a) a thermoplastic polymer matrix material, b) from 0.01 to 20 weight percent of spherical or near spherical organic polymer diffusing particles that are refractive index (R.I.) mis-matched to the matrix polymer, wherein the absolute difference between the matrix polymer and diffusing organic polymer particles is from greater than 0.02 to 0.2, c) from 0.1 to 15 weight percent of inorganic diffusing particles, wherein said weight percents are based on the weight of the total light-diffusing composition, and wherein a sheet or film made with said light diffusing material has a luminous transmission of greater than 40%, an optical haze of greater than 90% and a diffuse light scattering of greater than 85%.