Method for purification of rosin
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 2017
Issued Date -
N/A
app pub date -
Dec 20, 2013
filing date -
Dec 25, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The instant invention relates to a method for purifying a rosin-containing material from sulfur compounds. In particular the method comprises a) contacting a rosin-containing material comprising rosin and sulfur compounds with an oxidizing agent at a temperature from 0 to 60° C. for 10 minutes to 3 hours, to oxidize at least part of the sulfur compounds; and b) separating the rosin from the oxidized sulfur compounds; to obtain a purified rosin-containing material. The invention also relates to the purified rosin-containing materials, the preparation of products derived therefrom and the use of the purified rosin-containing materials and derived products.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- C09F Class
- 11 Applications Filed
- 11 Patents Issued To-Date
- 100 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C09F Class
- 50 % this patent is cited more than
- 8 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 | May 28, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 28, 2029 |
