US 12,091,570 B2
Polymer composite photonic crystal coatings
Matthew David Ryan, Berkeley, CA (US); Garret Miyake, Fort Collins, CO (US); and Ryan Michael Pearson, Berkeley, CA (US)
Assigned to Colorado State University Research Foundation, Fort Collins, CO (US)
Filed by Colorado State University Research Foundation, Fort Collins, CO (US)
Filed on Jul. 30, 2021, as Appl. No. 17/390,238.
Application 17/390,238 is a continuation in part of application No. PCT/US2020/015927, filed on Jan. 30, 2020.
Claims priority of provisional application 62/887,186, filed on Aug. 15, 2019.
Claims priority of provisional application 62/846,127, filed on May 10, 2019.
Claims priority of provisional application 62/798,760, filed on Jan. 30, 2019.
Prior Publication US 2021/0363378 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 5/22 (2006.01); C08F 299/04 (2006.01); C08K 3/22 (2006.01); C08K 5/00 (2006.01); C08K 13/02 (2006.01); C09D 5/32 (2006.01); C09D 5/33 (2006.01); C09D 7/41 (2018.01); C09D 7/61 (2018.01); C09D 155/00 (2006.01); G02B 1/11 (2015.01)
CPC C09D 155/005 (2013.01) [C08F 299/0485 (2013.01); C08K 3/22 (2013.01); C08K 5/0041 (2013.01); C08K 13/02 (2013.01); C09D 5/004 (2013.01); C09D 5/32 (2013.01); C09D 7/41 (2018.01); C09D 7/61 (2018.01); C08K 2003/2244 (2013.01); G02B 1/11 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A photonic crystal composition comprising brush block copolymer (BBCP) of Formula IA or Formula IB:

OG Complex Work Unit Chemistry
and optionally a pigment;
wherein
Rx is —(C2-C6)alkyl-OC(═O)G1, wherein G1 comprises polyacrylate, polymethacrylate or polylactic acid; or
—(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;
Ry is —(C2-C6)alkyl-OC(═O)G1, wherein G1 comprises polyacrylate, polymethacrylate or polylactic acid; or
—(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;
each G is each independently CH2 or C=0;
each J1 is independently CH2, C═O, or O;
each J2 is independently CH2, C═O, or O;
each Q is independently alkyl, cycloalkyl, heterocycloalkyl, carbonyl, silyl, aryl, or heteroaryl;
a and b are each independently 0 to 1000; and
x and y are each independently 1 to 1000;
wherein blocks a, b, x and y are in any order, a ratio of x:a is 1:0 to 1:3, and a ratio of y:b is 1:0 to 1:3.