Appeal No. 1996-4115
Application No. 08/183,273
the application.
THE INVENTION
The invention is directed to a process for lowering the
amount of epichlorohydrin and related hydrolysis compounds in
an aqueous solution of a polyamide-epichlorohydrin resin. The
process comprises contacting the aqueous resin solution with
an adsorbent selected from the group consisting of ion
exchange resins, non-ionic polymeric resins, synthetic carbon
containing adsorbents, activated carbon, zeolites, silica,
clays and alumina.
THE CLAIM
Claims 5 is illustrative of appellant’s invention and is
reproduced below.
5. A process for lowering the amount of epichlorohydrin
and related hydrolysis compounds that are contained in an
aqueous solution of polyamide-epichlorohydrin resin, which
comprises adsorbing epichlorohydrin and related hydrolysis
compounds contained in an aqueous solution of polyamide-
epichlorohydrin resin by contacting the aqueous solution with
an adsorbent selected from the group consisting of ion
exchange resins, non-ionic polymeric resins, synthetic
carbonaceous adsorbents, activated carbon, zeolites, silica,
clays, and alumina.
THE REFERENCES OF RECORD
As evidence of obviousness, the examiner relies upon the
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