A WEATHERING STABLE THERMOCHROMIC ROOFING MEMBRANE

The invention is directed to a roofing membrane (1) comprising a top waterproofing layer (2) and optionally a layer of fiber material (3), wherein the top waterproofing layer (2) comprises at least one thermoplastic polymerP, at least one thermochromic pigmentTP, and at least one UV-light absorberA....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Whelan, Brian J, De Leon, Carl, Morse, David, Leeber, Blaise
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BUILDING FIXED CONSTRUCTIONS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR GUTTERS LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL
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Beschreibung
Zusammenfassung:	The invention is directed to a roofing membrane (1) comprising a top waterproofing layer (2) and optionally a layer of fiber material (3), wherein the top waterproofing layer (2) comprises at least one thermoplastic polymerP, at least one thermochromic pigmentTP, and at least one UV-light absorberA. Such roofing membranes are able to change their color as a response to a change in temperature, which enables controlling the amount of heat energy absorbed into the roofing membrane and transmitted to a roof structure. The invention is also directed to a method for producing a roofing membrane and to a method for covering a roof substrate using the roofing membranes of the present invention.