Patent ID: 11866560
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 7:
8. The process according to claim 1, wherein:
a) said multifunctional phenol is selected from the group consisting of 2,2-Bis(4-hydroxyphenyl)propane, 1,1-Bis(4-hydroxyphenyl)ethane, 3,4′,5-Trihydroxy-trans-stilbene, 3,4′,5-Trihydroxy-cis-stilbene and mixtures thereof;
b) said cyanogen halide comprises cyanogen bromide;
c) said inorganic base is selected from the group consisting sodium hydroxide, lithium hydroxide, and mixtures thereof;
d) said organic base is selected from the group consisting of triethylamine, tetrabutylammonium hydroxide, sodium phenoxide and mixtures thereof.