Ok, I'll answer my own question.
Upon further research, "Corian" is a brand name indeed, owned by DuPont, and invented about 46 years ago.
There is certainly acrylic in Corian, but to say Corian = Acrylic, would not be true.
Corian is a composite material, made up of more than one materials....primarily acrylic and alumina trihydrate.
It's also my understanding, Corian only comes in 3 thicknesses, 6mm, 12mm, and 18mm.
It's biggest competitor is Meganite....tho I haven't researched Meganite yet, to see how closely it would carve/cut, like Corian.