Patent ID: 8808851
Filing Date: 2014-08-19
Classification: C01P,C09C,Y10T

Abstract:
1. A multi-layered composite material comprising: a radiation diffractive ordered periodic array comprising first particles held in a matrix composition, said first particles each comprising a core surrounded by a shell having a composition different from said core; and second particles received within said shells of said first particles and arranged in spaced apart layers comprising said second particles, a portion of said matrix composition, and a portion of said shells within the periodic array of first particles, and wherein said first particles are different from said second particles, and wherein the composite material is prepared by a process comprising: providing a periodic array of layered first particles held in a matrix, wherein the first particles comprise a core surrounded by a shell having a composition different from the core; applying a precursor solution to the periodic array, said precursor solution comprising a swellable solvent having a precursor material dissolved therein and subsequently swelling the shells of the first particles, such that the solvent diffuses into and infuses said second particles into the shells, resulting in the formation of said spaced apart layers.