Light rosin ester compositions and methods of making same
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United States of America Patent
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N/A
Issued Date -
Jan 3, 2019
app pub date -
Jun 30, 2018
filing date -
Jun 30, 2018
priority date (Note) -
Published
status (Latency Note)
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Abstract
A light color or a low color rosin or a rosin ester composition is disclosed. Significant color improvement can be obtained for a low color rosin, or a rosin ester by using a co-catalyst. In one embodiment, the co-catalyst has a triplet formation quantum yield (ϕT) of greater than 0.5 and a triplet lifetime (τT) of greater than 0.5 microseconds In another embodiment, the co-catalyst is selected from acridone, anthrone, 9-fluorenone, thioxanthone, xanthone, derivatives and combinations thereof.
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International Classification(s)
- 2018 Application Filing Year
- C09J Class
- 1305 Applications Filed
- 759 Patents Issued To-Date
- 58.17 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C09J Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 7, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 7, 2031 |
