Low emissivity article with low-e fluoropolymer layer

E - Fixed Constructions – 04 – B

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E04B 1/76 (2006.01) C09D 127/18 (2006.01) E04B 7/14 (2006.01) E04D 5/12 (2006.01) E04D 7/00 (2006.01) E04H 15/54 (2006.01) C08K 3/08 (2006.01) C08L 27/18 (2006.01)

Patent

CA 2418005

The invention provides a layer of fluoropolymer having dispersed therein infrared absorbing particles as a low emissivity layer to reduce the amount of cooling or heating required to maintain a desired temperature for an interior space. The invention also provides a low emittance article comprising a substrate having on at least one major surface thereof at least two layers, the outermost layer of which comprises a fluoropolymer and IR-absorbing particles in the form of flakes distributed in the outermost layer. The invention further provides a composition for producing a low emissivity coating, the composition comprising a dispersion of a fluoropolymer and IR- absorbing particles in the form of flakes.

L'invention se rapporte à une couche de fluoropolymère contenant, sous forme de dispersion, des particules absorbant le rayonnement infrarouge et constituant une couche à faible pouvoir émissif permettant de réduire l'intensité du refroidissement ou du chauffage nécessaire pour maintenir une température souhaitée dans un espace intérieur. L'invention se rapporte également à un article à faible émittance comportant un substrat dont au moins une surface principale comprend au moins deux couches. La couche la plus externe de ces deux couches comporte un fluoropolymère ainsi que des particules absorbant le rayonnement infrarouge se présentant sous la forme de paillettes réparties au sein de ladite couche extérieure. L'invention se rapporte également à une composition de production d'un revêtement à faible pouvoir émissif, ladite composition comportant une dispersion d'un fluoropolymère et de particules absorbant le rayonnement infrarouge se présentant sous la forme de paillettes.

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