Appeal No. 1999-0268
Application No. 08/650,608
butadiene block copolymer or a hydrogenated styrene-isoprene
block copolymer, the rubber-like polymer were an ethylene
polymer having units derived from unsaturated epoxy monomers
or unsaturated acid anhydride monomers, the network structure
would be comparable to the network structures shown in figures
3-5 of EP ‘280 and, therefore, would provide the partial
encapsulation relied upon by the examiner.
The examiner, therefore, has not carried the burden of
establishing a prima facie case of obviousness of the claimed
invention over EP ‘280 in view of Epstein ‘859 and Epstein
‘358. Consequently, we reverse the rejection over this
combination of references.
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