Use of an ester additive and paving grade asphalt in built up roofing asphalt composition manufacture
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United States of America Patent
Stats
-
Jul 2, 2019
Grant Date -
Sep 17, 2015
app pub date -
Mar 16, 2015
filing date -
Mar 14, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Thermally stable built-up roofing asphalt (“BURA”) composition comprising a paving grade asphalt is disclosed. The paving grade asphalt has been over-blown to a first softening point and an additive is included in an amount to achieve a second softening point. The additive comprises at least at least one ester. The BURA composition is thermally stable at processing temperatures of at least 450° F.
First Claim
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International Classification(s)
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- E04D:ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING ....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C10C:WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNE....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- C11C:FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FAT....
- 2015 Application Filing Year
- C09D Class
- 2894 Applications Filed
- 2079 Patents Issued To-Date
- 71.84 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 8 Citation Count
- C09D Class
- 38.01 % this patent is cited more than
- 6 Age
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 2, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 2, 2031 |
