Appeal No. 1997-0005
Application 08/340,966
separating a hydrogenated polymer solution or sus-
pension that contains less than about 0.8 percent by weight
water from the aqueous solution.
7. The method of claim 1 wherein the metal is a
nickel alkyl, and the additional amount of Group VIII metal1
alkoxide or carboxylate and nickel alkyl hydrogenation cata-
lyst is about 60 ppm by weight of nickel based on the polymer
solution.
Appealed claims 1 through 6 stand rejected under 35
U.S.C. § 112, second paragraph. Appealed claim 7 stands
rejected under 35 U.S.C. § 112, first paragraph, “written
description requirement.” No prior art rejections are before
us.
We reverse.
The subject matter on appeal is directed to a method
to hydrogenate polymers containing ethylenic unsaturation
wherein the residue of the hydrogenation catalyst is removed
by aqueous acid extraction leaving a separated hydrogenated
polymer solution or suspension that contains less than about
0.8 percent by weight water from the aqueous acid solution.
As explained in appel- lants’ specification, effective separa-
1“Nickel alkyl” is a misnomer and should be corrected
before further action is taken in this application.
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