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US 12,091,570 B2Granted
Polymer composite photonic crystal coatings
AssigneeColorado State University Research Foundation
InventorsMatthew David Ryan, Garret Miyake, Ryan Michael Pearson
Life of this patent
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Abstract
Polymer composite photonic crystal materials are disclosed as coatings which have high reflection (>30%) in a specific range of the electromagnetic spectrum, such as ultraviolet (<400 nm), visible (Vis, 400 nm-700 nm), or near-infrared radiation range (NIR, 700-2000 nm), and relatively low reflection (<20% reflection) in a second, different range of the electromagnetic spectrum. Surprisingly, it was found that through a formulation and additives approach, the optical properties of polymer composite photonic crystal films can be selectively modified from a variety of different coating methods, including spray deposition.
Claims22
A photonic crystal composition comprising brush block copolymer (BBCP) of Formula IA or Formula IB:
- 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.
15 more elements
A method of modulating an electromagnetic radiation reflectance, absorbance and transmission profile of a substrate comprising coating a substrate with a film of a photonic crystal composition,
- wherein the photonic crystal composition comprises brush block copolymer (BBCP) of Formula IA or Formula IB:
- and 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;
- wherein the pigment is an acid dye, basic dye, azo dye, acridine dye, rylene dye, sulfur dye, pH indicator, food dye, fluorescent brightener, anthraquinone dye, arylmethane dye, triarylmethane dye, phthalocyanine dye, quinone-imine dye, azin dye, indophenol dye, oxazin dye, oxazone dye, thiazine dye, thiazole dye, safranin dye, xanthene dye, perylene diimide dye, rhodamine dye, or a combination thereof;
- and
- wherein the pigment in the photonic crystal composition modulates the reflectance, absorbance and transmission profile of the substrate and at least 5% more electromagnetic radiation is reflected by the coated substrate than for a corresponding uncoated substrate.
19 more elements
A method for forming a photonic coating comprising:
- a) combining a solvent, a pigment, and a brush block copolymer (BBCP) to form a mixture, wherein BBCP is a BBCP of Formula IC:
- wherein
- Rx is —(C2-C6)alkyl-OC(═O)G1, wherein G1 comprises polyacrylate, polymethacrylate or polylactic acid;
- or
- —(C1-C5)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-C5)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;
- a and b are each independently 0 to 1000;
- and
- x and y are each independently 1 to 1000;
- wherein a ratio of x:a is 1:0 to 1:3 and a ratio of y:b is 1:0 to 1:3;
- b) applying a layer of the mixture to a substrate;
- and
- c) drying the layer to form a film;
- wherein the film forms the photonic coating on the substrate.
15 more elements
A photonic crystal composition comprising brush block copolymer (BBCP) represented by Formula ID, IE, or IF:
- 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 or unbranched alkyl;
- R2 is branched or unbranched alkyl;
- R3 is branched or unbranched alkyl;
- R4 is branched or unbranched alkyl;
- each G is each independently CH2 or C=0;
- J1 is CH2, C═O, or O;
- J2 is CH2, C═O, or O;
- J3 is CH2, C═O, or O;
- J4 is CH2, C═O, or O;
- A1, A2, A3, and A4 are each independently
- 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.
20 more elements
Dependencies are inferred from the claim text.