Solar reflective coatings and coating systems
First Claim
Patent Images
1. A coating composition comprising:
- (a) a film-forming resin;
(b) colored and/or opaque infrared reflective pigment particles;
(c) infrared transparent pigment particle; and
(d) a tri-block copolymer pigment dispersant;
wherein the colored and/or opaque infrared reflective pigment and the infrared transparent pigment are separate and different components and are separately dispersed in the coating composition and wherein the coating composition, when formed into a cured coating, exhibits;
(1) a total solar reflectance of at least 15% as measured in accordance with ASTM E 903-96; and
(2) an angle dependent color change of no more than 5 Δ
E units at a viewing angle from 110°
to −
15°
when compared to the color of a control coating not containing the colored and/or opaque infrared reflective pigment particles (b).
1 Assignment
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Accused Products
Abstract
Disclosed are infrared reflective coating compositions and cured coatings deposited on a substrate, as well as multi-component composite coating systems. The coating compositions include an infrared transparent pigment and an infrared reflective pigment.
69 Citations
16 Claims
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1. A coating composition comprising:
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(a) a film-forming resin; (b) colored and/or opaque infrared reflective pigment particles; (c) infrared transparent pigment particle; and (d) a tri-block copolymer pigment dispersant; wherein the colored and/or opaque infrared reflective pigment and the infrared transparent pigment are separate and different components and are separately dispersed in the coating composition and wherein the coating composition, when formed into a cured coating, exhibits; (1) a total solar reflectance of at least 15% as measured in accordance with ASTM E 903-96; and (2) an angle dependent color change of no more than 5 Δ
E units at a viewing angle from 110°
to −
15°
when compared to the color of a control coating not containing the colored and/or opaque infrared reflective pigment particles (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A multi-component composite coating comprising:
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(a) a first coating exhibiting a CIELAB L* value of no more than 50 and a total solar reflectance of at least 15% as measured in accordance with ASTM E 903-96 and deposited from a first coating composition comprising; (i) a film-forming resin; (ii) colored and/or opaque infrared reflective pigment particles; (iii) infrared transparent pigment particles; and (iv) a tri-block copolymer pigment dispersant; wherein the colored and/or opaque infrared reflective pigment and the infrared transparent pigment are separate and different components and are separately dispersed in the first coating composition, and wherein the first coating composition, when formed into a cured coating, exhibits an angle dependent color change of no more than 5 Δ
E units at a viewing angle from 110°
to −
15°
when compared to the color of a control coating not containing the infrared reflective pigment particles (ii); and(b) a second coating deposited beneath at least a portion of the first coating, the second coating being deposited from a second coating composition comprising; (i) a film-forming resin; (ii) infrared reflective flake pigment particles; and (iii) infrared reflective inorganic oxide pigment particles; wherein the infrared reflective flake pigment and the infrared reflective inorganic oxide pigment are separate and different components of the second coating coating composition. - View Dependent Claims (16)
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Specification