Method for producing stable solutions of phenolic substances...

Details Method for producing stable solutions of phenolic substances... Method for producing stable solutions of phenolic substances...

2007-04-03

2007-04-03

Barts, Samuel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C564S374000, C564S002000

Reexamination Certificate

active

10495841

ABSTRACT:
A novel method for producing stabilized antioxidant-free solutions based on phenolic substances which consists in deoxygenation of the solutions with an inert gas, and in deoxygenation of gas holdups of the vessels, of the manufacturing pipes and inerting of ampoules and flasks containing the solution with a dense inert rare gas such as argon, at low temperature and with pH adjusted above 3.0 and below 5.0 to obtain stable solutions of phenolic substances containing not more than 0.02 ppm of oxygen in the solution, which is filtered by double sterilizing filtration useful for human or animal therapeutic treatment.

REFERENCES:
patent: 6992218 (2006-01-01), Dietlin et al.

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