coffee creamer, i believe
Some what in that direction.
At my work we had coffee whitener for the coffee machine, which was later on replaced by coffee creamer.
Difference if I remember it correctly: the whitener was mostly casein and stuff, but the creamer had as subtitle "milk product" and did list milkpowder as one of the ingredients.
Based on that I think whitener is a product that acts as coffee creamer but probably can not be named as creamer because of legislation or lack of real cream?
See : http://en.wikipedia.org/wiki/Non-dairy_creamer