Application of Alois M. Gemassmer

MARTIN, Judge.

This appeal is from a decision of the Patent Office Board of Appeals affirming the examiner’s rejection of claims 35, 36, 37 and 38 of appellant’s application s®rial No. 626,253, filed December 4, 1956, for ISOCYANATES. Five claims stand allowed.

Claims 35-38 read:

“35. The process of Claim 301 wherein the reaction mixture is flowed through a falling film evaporator and is stirred as it is heated in the evaporator.

“36. As a new composition of matter, the reaction product of an organic diisocyanate selected from the group consisting of aromatic, cyclo-aliphatic and acyclic…