Claims
- 1. An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises a filled asphaltic coating composition comprising: about 40 percent to about 99 percent by weight of asphaltic composition comprising, about 52 to about 99 percent by weight of oxidized asphalt, about 1 to about 8 percent by weight of oxidized polyethylene and 0 to about 40 percent by weight of a saturant; and about 1 percent to about 60 percent by weight of stone dust.
- 2. The improved asphalt coated roofing material as recited in claim 1 wherein the asphalt coating composition comprises about 71 to 89 percent oxidized asphalt, about 1 to 4 percent oxidized polyethylene, and about 10 to 25 percent saturant.
- 3. The improved asphalt coated roofing material as recited in claim 1 wherein the roofing felt is made of fiberglass.
- 4. The asphaltic coating composition as recited in claim 1 wherein the oxidized polyethylene has a molecular weight between about 1,000 and about 10,000 and a Brookfield Viscosity at 149.degree. C. between about 100 and about 40,000 cps.
- 5. The asphaltic coating composition as recited in claim 4 wherein the oxidized polyethylene has a molecular weight of between about 3,000 and about 5,000, and a Brookfield Viscosity at 149.degree. C. of between about 8,000 cps and 10,000 cps.
- 6. The asphaltic coating composition as recited in claim 5 wherein there is:
- 77 percent by weight oxidized asphalt;
- 3 percent by weight oxidized polyethylene; and
- 20 percent by weight saturant.
- 7. An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises an asphaltic coating composition comprising: about 52 to about 99 percent oxidized asphalt; about 1 to about 8 percent by weight of oxidized polyethylene; and 0 to about 40 percent by weight of a saturant.
Parent Case Info
This is a division, of Application Ser. No. 202,206, filed Oct. 30, 1980, now U.S. Pat. No. 4,328,147, patented May 4, 1982.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
202206 |
Oct 1980 |
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