A new optical brightener designed for flexible vinyl and low and high density polyethylenes is available from Eastman Chemical Co.
Eastobrite OB is effective at concentrations as low as 75 parts per million in pigmented polymers and as low as 25 parts per million in naturally clear resins, claims the Kingsport, Tenn., company.
The additive provides a brilliant, bluish-white, light-fast color in toys, appliances, handles and a range of other plastics applications.
Tel. (423) 229-8427, fax (423) 224-0648, e-mail [email protected]