Stabilized rosin and process for production and use thereof
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United States of America Patent
Stats
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Dec 29, 1992
Grant Date -
N/A
app pub date -
Jul 9, 1991
filing date -
Jun 28, 1991
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process for the production of a stabilized rosin and a stabilized rosin obtainable by the process. According to the process rosin is heated in the presence of a phosphoric acid or a strong acid in combination with a phosphate containing substance and disproportionated by addition of iodine. Preferably the rosin is first heated in the presence of the phosphoric acid or the strong acid in combination with the phosphate containing substance and thereafter disproportionated by the addition of iodine. Iodine is preferably added in at least two steps and the disproportionation is allowed to proceed between each step. The stabilized rosin can be used as a tackifier resin in adhesives and as a sizing agent for paper, paper boards and similar products.
First Claim
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International Classification(s)
- 1991 Application Filing Year
- C09F Class
- 17 Applications Filed
- 8 Patents Issued To-Date
- 47.06 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- C09F Class
- 0 % this patent is cited more than
- 33 Age