Patent ID: 9534378
Date: 2017-01-03
CPC Classifications: B32B,E02D,E04B,E04D,Y10T

Claim:
1. A self-adhesive protective sheet for attachment to a protected surface comprising: a first polyester layer constructed from polyethylene terephthalate (PET) fibers that are thermally bonded to each other to form a first sheet of non-woven, liquid permeable PET fibers that comprise said first polyester layer; second polyester layer constructed from polyethylene terephthalate (PET)fibers that are thermally bonded to each other to form a second sheet of non-woven, liquid permeable PET fibers that comprise said second polyester layer said first polyester layer thermally bonded to said second polyester layer to form a non-woven, liquid permeable, double thickness PET sheet that is resistant to puncture, tearing and ripping when exposed to environmental effects, an asphalt layer that is partially absorbed by said non-woven, liquid permeable, double thickness PET sheet when asphalt, that forms said asphalt layer, is applied to said non-woven, liquid permeable, double thickness PET sheet in a liquid state, so that a first side of said asphalt layer is bonded to said non-woven, liquid permeable, double thickness PET sheet when said asphalt layer is in a solid state, said asphalt layer having a second side that has a tacky surface; a release film disposed on said second side of said asphalt layer that is secured to said tacky surface and can be peeled from said tacky surface so that said tacky surface can be attached to said protected surface.