Recyclable bituminous roofing material

Abstract

Roofing material which is formed by one or more bituminous layers and is also provided with a liner and/or reinforcement.

1 - 29 . (canceled) 
     
     
         30 . A roofing material comprising one or more bituminous layers of a bitumen mixture that becomes liquid at a processing temperature deposited on a liner, the liner consists exclusively of a material having a melting temperature which is higher than the processing temperature of the bituminous layer or layers, but is not more than 20° C. higher, and/or which corresponds largely to the processing temperature of the bituminous layer or layers,
 the liner consists of a woven fabric and consists exclusively of a material having a melting temperature which is between 150° C. and 200° C., and/or 
 a reinforcement is formed as strengthening by fibers and/or wires with a melting point above the processing temperature of the bitumen mixture. 
 
     
     
         31 . The roofing material as claimed in  claim 30 , wherein the liner consists exclusively of a material having a melting temperature below 180° C. 
     
     
         32 . The roofing material as claimed in  claim 30 , wherein the liner is selected from the group consisting of polypropylene, polyamide, poylethene, polyethylene, polyvinyl chloride, polyacrylonitrile, ethylene-vinyl acetate, and mixtures thereof. 
     
     
         33 . The roofing material as claimed in  claim 30 , wherein the fibers and/or wires are one of plastic and glass. 
     
     
         34 . The roofing material as claimed in  claim 30 , wherein the fibers and/or wires are formed of one of aramide and polyester. 
     
     
         35 . The roofing material as claimed in  claim 30 , wherein the fibers and/or wires are present in an amount of 0.1 weight percent to 5 weight percent. 
     
     
         36 . The roofing material as claimed in  claim 35 , wherein the fibers and/or wires have a length of 0.1 mm to 500 mm. 
     
     
         37 . The roofing material as claimed in  claim 35 , wherein the fibers and/or wires have a length of 1 mm to 50 mm. 
     
     
         38 . The roofing material as claimed in  claim 35 , wherein the fibers and/or wires have a length of 5 mm. 
     
     
         39 . The roofing material as claimed in  claim 36 , wherein the fibers and/or wires have a diameter of 0.001 mm to 5 mm. 
     
     
         40 . The roofing material as claimed in  claim 37 , wherein the fibers and/or wires have a diameter of 0.004 mm to 2 mm. 
     
     
         41 . The roofing material as claimed in  claim 37 , wherein the fibers and/or wires have a diameter of 0.014 mm. 
     
     
         42 . A roofing material composed of one or more bituminous layers of a bitumen mixture that become liquid at the processing temperature, and further equipped with a reinforcement as strengthening, wherein the reinforcement is formed exclusively of wires and/or loose fibers embedded into the bituminous layer or the in bituminous layers, the reinforcement consisting exclusively of a material having a melting temperature which is higher than the processing temperature of the bituminous layer or layers and/or which corresponds largely to the processing temperature of the bituminous layer or layers, the reinforcement consisting exclusively of a material having a melting temperature above 150° C. 
     
     
         43 . The roofing material as claimed in  claim 42 , wherein the reinforcement consists exclusively of a material having a melting temperature above 200° C. 
     
     
         44 . The roofing material as claimed in  claim 43 , wherein the fibers and/or wires consist of a plastic or glass. 
     
     
         45 . The roofing material as claimed in  claim 43 , wherein the fibers and/or wires are formed of one of aramide and polyester. 
     
     
         46 . The roofing material as claimed in  claim 44 , wherein the fibers and/or wires are present in an amount of 0.1 weight percent to 5 weight percent. 
     
     
         47 . The roofing material as claimed in  claim 42 , wherein the fibers and/or wires have a length of 0.1 mm to 500 mm. 
     
     
         48 . The roofing material as claimed in  claim 46 , wherein the fibers and/or wires have a length of 1 mm to 50 mm. 
     
     
         49 . The roofing material as claimed in  claim 46 , wherein the fibers and/or wires have a length of 5 mm. 
     
     
         50 . The roofing material as claimed in  claim 47 , wherein the fibers and/or wires have a diameter of 0.001 mm to 5 mm. 
     
     
         51 . The roofing material as claimed in  claim 48 , wherein the fibers and/or wires have a diameter of 0.004 mm to 2 mm. 
     
     
         52 . The roofing material according to  claim 50 , wherein the fibers and/or wires have a diameter of 0.014 mm. 
     
     
         53 . The roofing material as claimed in  claim 41 , wherein the fibers are selected from the group consisting of synthetic fibers, natural mineral fibers, stone, basalt, glass, and slags. 
     
     
         54 . A method for producing a roofing material which is formed by one or more bituminous layers of a bitumen mixture, the bitumen mixture of the one or more bituminous layers being liquefied at a processing temperature and deposited on a liner, wherein the liner is provided exclusively consisting of a material having a melting temperature which is higher than the processing temperature of the bituminous layer or layers, but not more than 20° C. higher, and/or which corresponds largely to the processing temperature of the bituminous layer or layers, comprising providing a liner consisting of a woven fabric exclusively consisting of a material having a melting temperature which is between 150° C. and 200° C. 
     
     
         55 . The production method as claimed in  claim 54 , including forming a reinforcement as strengthening by fibers and/or wires with a melting point above the processing temperature of the bitumen mixture. 
     
     
         56 . The production method as claimed in  claim 55 , including recycling of the roofing material, wherein after having reached the roofing material lifetime, the roofing material is melted to form a hot liquid bitumen mixture, where at least that part of the liner and/or reinforcement whose melting point is below the processing temperature of the bitumen mixture of the one or more bituminous layers melts away in the hot liquid bitumen mixture. 
     
     
         57 . The production method as claimed in  claim 56 , wherein the recycling takes place in a single melting step, without any need for mechanical separation of solid parts from the melted, liquid bitumen mixture.