Having character maintain falling states

I have several objects in the game i don't want my character to step on
Basically when the character falls to it, it'll remain sliding from it, like it is an thin ice object, while maintaining falling states. help?

All of these objects are usually thin, but some has bits of wider area, so it may still "land" on it.

I tried using physics material but regardless of it sliding, it still land when it's wide enough...
Is there a way to solve this?