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US 12,344,767 B2Granted
Low emissive coating compositions for camouflage, and products therefrom
AssigneeSaab AB
InventorsDaniel Kling, Ann-Sofie Olovsson, Björn Boström
Life of this patent
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Abstract
The present disclosure relates to a composition for providing a camouflage coating, the composition including an aqueous polyolefin binder dispersion; a low-emissive pigment; and a matting agent. The matting agent is a thermoplastic polymer matting agent. The disclosure further relates to a method of producing a low-emissive textile product using such a composition, as well as low-emissive textile products and camouflage products produced using the composition.
Claims14
A composition comprising:
- a non-oxidized polyolefin binder dispersion;
- a low-emissive pigment comprising a metal powder or metal flake;
- and
- a matting agent;
- wherein the matting agent is selected from the group consisting of hollow thermoplastic polymer microspheres, micronized polyolefin waxes, and calcium carbonate core and hydroxyapatite shell, wherein the matting agents defined in that when a test composition consisting of the matting agent and the non-oxidized polyolefin binder dispersion only is coated to an aluminium substrate to provide a test substrate, the resulting test substrate demonstrates an increase in average emissivity (Eavg) in the wavelength intervals 3-5 μm and 8-12 μm that is less than 0.15 as compared to a reference substrate consisting of an aluminium substrate coated with the on-oxidized polyolefin binder dispersion only;
- wherein the said test composition comprises matting agent in quantities sufficient to ensure that the test substrate has a gloss value of less than 2 when measured at both 60° and 85° in accordance with the method as defined in ISO 2813:2014.
3 more elements
A camouflage product comprising a low-emissive coating layer, the low-emissive coating layer comprising:
- a non-oxidized polyolefin binder dispersion;
- a low-emissive pigment comprising a metal powder or metal flake;
- and
- a matting agent;
- wherein the matting agent is selected from the group consisting of hollow thermoplastic polymer microspheres, micronized polyolefin waxes, and calcium carbonate core and hydroxyapatite shell, wherein the matting agents defined in that when a test composition consisting of the matting agent and the non-oxidized polyolefin binder dispersion only is coated to an aluminium substrate to provide a test substrate, the resulting test substrate demonstrates an increase in average emissivity (Eavg) in the wavelength intervals 3-5 μm and 8-12 μm that is less than 0.15 as compared to a reference substrate consisting of an aluminium substrate coated with the on-oxidized polyolefin binder dispersion only;
- wherein the said test composition comprises matting agent in quantities sufficient to ensure that the test substrate has a gloss value of less than 2 when measured at both 60° and 85° in accordance with the method as defined in ISO 2813:2014.
3 more elements
Dependencies are inferred from the claim text.