Puffed insulative material and methods for making such material

Details Puffed insulative material and methods for making such material Puffed insulative material and methods for making such material

E - Fixed Constructions

04

B

E04B 1/78 (2006.01) B32B 5/26 (2006.01) C08J 9/22 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2170512

The present invention is an insulation material with improved loft characteristics and methods for producing such insulation. The preferred insulation comprises a multiple layered insulation material with discrete fibers having energy expandable thermoplastic microspheres interspersed and contained therein. The use of expandable microspheres allows for (1) the introduction of unexpanded microspheres into preconstructed insulation; and (2) expansion of the insulation within the insulation to a diameter greater enough that the microspheres are retained in place. The insulation of the present invention exhibits many improved properties over conventional insulations, such as improved loft, better thermal insulation, improved compression resistance, and improved resilience.

La présente invention se rapporte à un matériau isolant présentant des caractéristiques de gonflant améliorées et aux procédés de fabrication de celui-ci. La matière isolante préférée comprend un matériau isolant multicouche comportant des fibres séparées qui renferment des microsphères thermoplastiques expansibles entremêlées. L'utilisation de microsphères expansibles permet (1) d'introduire des microsphères non expansées dans une matière isolante préformée; et (2) de dilater les microsphères dans la matière isolante jusqu'à obtenir un diamètre suffisamment important pour que les microsphères soient maintenues en place. La matière isolante ci-décrite présente de nombreuses propriétés améliorées par rapport aux matières isolantes classiques, telles que l'amélioration du gonflant, de l'isolation thermique, de la résistance à la compression et de la résilience.

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