Corning Incorporated
Pipette with improved readability and toughness

Abstract:

A serological pipette has an elongated hollow tubular body having an optical transmission of 40 to 70% over a range of 390 to 700 nm. The pipette body is formed from a polymer composition that includes 5 to 30 wt. % poly(styrene-butadiene-styrene) and 70 to 95 wt. % polystyrene. The tubular body is formed by extrusion at a barrel temperature ranging from 400 to 500 F.