Patent ID: 9705056
Date: 2017-07-11
CPC Classifications: C08L,G02B,H01L,Y10T

Claim:
1. An optical article, comprising: a silicone-containing composition, comprising a first region having a first refractive index; and a second region having a second refractive index different than the first refractive index; wherein: the silicone-containing composition comprises a first composition having the first refractive index and corresponding to the first region; and a second composition having the second refractive index and corresponding to the second region, the second composition being different than the first composition; the first composition has a first concentration of a material and the second composition has a second concentration of a material different than the first concentration; and wherein the silicone-containing composition includes at least one of a resin-linear composition, the resin-linear composition comprising organosiloxane block copolymers containing: 40 to 90 mole percent disiloxy units of the formula [R 1 2 SiO 2/2 ], 10 to 60 mole percent trisiloxy units of the formula [R 2 SiO 3/2 ], 0.5 to 25 mole percent silanol groups [SiOH]; wherein: wherein: the disiloxy units [R the trisiloxy units [R the organosiloxane block copolymer has a weight average molecular weight of at least 20,000 g/mole, and is a solid at 25° C.