Setting is in NY, Batman has standard equipment.
I think it should probably be established how much preparation time Batman has. If none, I don't see Batman winning this. If Batman has enough time, he could come up with something to capture him or immobilize him. If he's got an obscene amount of time, he might even figure out a way to snag a light saber or something. Unbreakable skin, blob? Not anymore.
This is difficult...... the terms of victory in this fight eeds to be defined. Are we talking death or simple immobilization? Also, where is it at? Batman may have access to some telepath who could use a mental attack or something. I REALLY don't like Batman, but unfortunately, I gotta give this win to him.
Batman wins or stalemate.
Cryo-pellets or a one-shot technique (like Falling Leaf, Vibrating Palm, Etc.) are the only ways I see Batman winning.
But at the same time, I don't see Blob tagging Batman. He's surprisingly fast for his size, but not fast enough IMO.