3ds Max to Unity importing alpha aniamtions

Hey all,

I'm importing an animated motion graphic from 3dsmax to unity. In 3dsmax I've used a standard black material to animate the fade Ins and fade outs. The alpha animation doesn't appear in unity, I've changed the fade in and out material to transparent diffused but to no avail. Is it at all possible to export the alpha material animation from 3dsmax to unity? or does this need to be achieved through multiple animations and code.

Thanks in advance,

C