Patent ID: 11912886
Assignee: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B  G  Y | IPC B  C  G

Claim 0:
1. A multilayer coating comprising:
a) a first layer of a photonic crystal film comprising a pigment and brush block copolymer (BBCP) of Formula IA or Formula IB:, , wherein
Rx is —(C2-C6)alkyl-OC(═O)G1 wherein G1 comprises polyacrylate, polymethacrylate or polylactic acid;
Ry is —(C1-C8)alkyl-G2-G3 wherein G2 is —C(═O)O— or a nitrogen heterocycle and G3 comprises polystyrene, polyacrylate, polydimethylsiloxane, polyether, polymethacrylate, or polylactic acid;
R1 is unbranched alkyl;
R2 is branched alkyl;
J1 and G are each independently CH2 or C═O;
each J2 is independently CH2 or C═O;
each Q is independently alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;
a and b are each independently 0 to about 1000; and
x and y are each independently 1 to about 1000;
wherein blocks a, b, x and y are in any order, the ratio of x:a is 1:0 to about 1:3, and the ratio of y:b is 1:0 to about 1:3; and

b) a second layer comprising a topcoat wherein the topcoat is an optical adhesive or ultraviolet curable resin;
wherein the first layer and second layer form a multilayer film and the multilayer coating comprises one or more multilayer films.