Appeal No. 96-2105
Application 08/059,861
amines comprising substituted and unsubstituted heterocyclic
compounds, diethylmethyl amine, trimethyl amine, and polymers
having unhindered amino groups, and
(4) a solvent
with the proviso that the reaction mixture does not
contain an organic amine base in an amount exceeding 0.02
molar equivalents based on the dialkyl dicarbonate, and
(b) stirring the reaction mixture,
(c) precipitating the alkyl carbonate of the
hydroxyaromatic material, and
(d) recovering the alkyl carbonate of the polymeric
hydroxyaromatic material.
THE REFERENCES
References relied upon by the examiner
Brunsvold et al. (Brunsvold) 4,931,379 Jun. 5, 19902
Hiroshi Ito, “Solid-State Thermolysis of Poly(p-t-Butoxy-
carbonyloxystyrene) Catalyzed by Polymeric Phenol: Effect of
Phase Separation”, 24 J. Polym. Sci. 2971-80 (Nov. 1986).
Reference relied upon by appellants
Jerry March, Advanced Organic Chemistry 361 (McGraw-Hill, 2d
ed., undated).3
2In the answer, the examiner incorrectly refers to this
reference as “Brunswald”.
3Appellants and the examiner have treated this undated
reference as prior art, and we likewise do so.
-3-3
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