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| Number | Title | Issue Date |
| 5471801 | Hip and ridge asphalt roof covering The present invention provides a composition ridge or hip covering which creates an appearance similar to that of a wood shake or slate roof. The covering may be easily installed, requires no trimming or folding during installation and may be manufactured... | 12/05/1995 |
| 5437923 | Halogen-free flame-retardent bitumen roofing composition A halogen-free flame-retardant bitumen composition with improved performance characteristics is described. The flame-retardant bitumen composition contains at least 45 weight percent bitumen, about 2 to 25 weight percent thermoplastic polymer, and about 1... | 08/01/1995 |
| 5326797 | Fire resistant roofing asphalt composition A roofing system incorporates a fire resistant asphalt composition comprising a thermoplastic elastomer modified bitumen, a filler, a brominated diphenyl ether, antimony oxide, and zinc borate. The asphalt composition is utilized with and impregnated into... | 07/05/1994 |
| 5169690 | Fire resistant roofing system A roofing system incorporates a fire resistant asphalt composition comprising a thermoplastic elastomer modified bitumen, a filler, a brominated diphenyl ether, antimony oxide, and zinc borate. The asphalt composition is utilized with and impregnated into... | 12/08/1992 |
| 5100715 | Fire resistant roofing system A roofing system incorporates a fire resistant asphalt composition comprising a thermoplastic elastomer modified bitumen, a filler, a brominated diphenyl ether, antimony oxide, and zinc borate. The asphalt composition is utilized with and impregnated into... | 03/31/1992 |
