Application of Helmut Klug and Karl-Heinz Mittelberger

WORLEY, Chief Judge.

Klug and Mittelberger appeal from the board’s affirmance of the rejection of claims 26, 27, 39, 40, 43 to 46 and 48, of their patent application. 1

The invention relates to a process of chlorinating low pressure polyethylene and the product produced thereby. The low pressure polyethylene to be chlorinated is characterized by a predominantly linear molecular structure and a high degree of crystallinity.

Claims 39 and 48 read:

“39. The process for the manufacture of solid chlorinated polyethylene which comprises suspending solid granular polyethylene having predominantly a…