Which of the following is not a trade name of PMMA polymer?

Acrylite Lucite Vectran Perspex

Vectran

PMMA is a polymer of methyl methacrylate. It is used in the manufacturing of lenses, dentures, aircrafts windows, etc. It is known by the commercial names plexiglass, lucite, acrylite, perspex and crylux. Vectran is an aromatic polyester.