Patent ID: 6924243
Filing Date: 2005-08-02
Classification: B32B,E04B,F16L,Y02A,Y10T

Abstract:
1. A process for preparing a fiberglass insulation product which comprises the steps of: (a) providing a layer of fire-retardant kraft paper, (b) coating the fire-retardant kraft paper layer with a high melting point polymer to form a high melting point polymer-fire-retardant kraft laminate, (c) coating the high melting point polymer-fire-retardant kraft laminate with a low melting point polymer to form a low melting point polymer-high melting point polymer-fire-retardant kraft laminate, (d) adjusting the temperature of the low melting point polymer-high melting point polymer-fire-retardant kraft laminate so that the low melting point polymer becomes tacky while the high melting point polymer remains solid, (e) providing a layer of fiberglass wool, and (f) contacting the low molting point layer of the low melting point polymer-high melting point polymer-fire-retardant kraft laminate with the fiberglass wool layer with pressure and cooling to bond said low melting point polymer-high melting point polymer-fire-retardant kraft laminate to said fiberglass wool layer to form a fiberglass insulation product.