I wonder if these are anything like the 2-strip technicolor they tried in the 30's, though that stuff was known to disintegrate.
Actually, experimental 2-color Technicolor existed as early as 1916. Full 3-strip Technicolor was first used in the 1933 Disney cartoon Flowers and Trees
. The first live-action feature film in full Technicolor was Becky Sharp
As for "disintegrating," all nitrate film stock, whether color or black and white, starts to decompose after a few decades.