US 2007/0166521 A1Published application

Reflective film

AssigneeMarko I.R.D.C. Inc.

InventorsJulien Lefebvre, Mark Frohlich, Ludovic Leplatois, Roger Tambay

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Abstract

The present invention provides a reflective film that can be adhered to a surface of a construction material to form a composite material that is useful as radiant heat insulation in industrial, commercial and residential buildings. The reflective film comprises a layer of Aluminum foil adhered to a surface of a polymer film. Also provided is an alternative in which the reflective film comprises a layer of Aluminum foil adhered to polymer-coated kraft paper. The polymer film or polymer-coated kraft paper composite is formulated such that reflective film may be laminated to the surface of the construction material without the use of an adhesive. Also provided are manufacturing processes for the production of the reflective film, or film composite, and for laminating the film or film composite to the surface of a construction material.

A reflective film for adhesion to a construction material, which reflective film comprises a layer of converter grade Aluminum foil having a thickness of between about 0.00025 mil and about 2 mil adhered to one surface of a polymer film or film composite, said polymer film or film composite having a surface energy of at least 35 dynes and consisting of:

(a) a first outer portion suitable for adhesion to the construction material consisting of one or more layers of:
(i) a metallocene-catalyzed polyethylene with density below 0.907 g/cm3 and a melt index between 0.5 and 30 g/10 min;
(ii) an ethylene vinyl acetate copolymer (EVA) having a vinyl acetate content between 2 and 30% and a melt index between 0.5 and 30 g/10 min;
(iii) an acid/acrylate or anhydride modified ethylene vinyl acetate copolymer having a melt index between 0.5 and 30 g/10 min;
(iv) an acid or anhydride modified ethylene acrylate copolymer having a melt index between 0.5 and 30 g/10 min;
(v) an ethylene butyl-, ethyl- or methyl-acrylate copolymer (EBA, EEA or EMA) having a melt index between 0.5 and 30 g/10 min;
(vi) a terpolymer of ethylene, butyl-acrylate and glycidylmethacrylate (E/nBA/GMA) having a melt index between 0.5 and 30 g/10 min;
(vii) an ethylene acrylic acid and methacrylic acid copolymer having a melt index between 0.5 and 30 g/10 min;
(viii) an ionomer of ethylene, methacrylic acid (E/MAA) having a melt index between 0.5 and 30 g/10 min;
(ix) a maleic anhydride grafted polyethylene or ethylene copolymer having a melt index between 0.5 and 30 g/10 min;
(x) a combination of one or more of (i), (ii), (iii), (iv), (v), (vi), (vii), (viii), or (ix),
alone or blended with between 0 and 80% low density polyethylene or linear low density polyethylene having a melt index between 0.3 and 30 g/10 min;
and
(b) a second outer portion adhered to the layer of Aluminum foil and consisting of one or more layers of:
(i) an ethylene acrylic acid and methacrylic acid copolymer having a melt index between 0.5 and 30 g/10 min;
(ii) an ionomer of ethylene, methacrylic acid (E/MAA) having a melt index between 0.5 and 30 g/10 min;
(iii) a maleic anhydride grafted polyethylene or ethylene copolymer having a melt index between 0.5 and 30 g/10 min;
(iv) a low density polyethylene having a melt index between 0.3 and 30 g/10 min;
or
(v) a combination of one or more of (i), (ii), (iii) or (iv).

17 more elements

Facts

Application

10/552,701Filed 7 Apr 2004

Priority

CA 24246307 Apr 2003

Published

19 Jul 2007

Term ends

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Classification20 codes

B32B 15/08
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 15/20
Layered products comprising a layer of metal: comprising aluminium or copper
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin

Abstract

Claims19