Sputtered metal barrier coating keeps film clear.A new precious-metal sputtered coating on PET film from Techni-Met Inc., Windsor, Conn., has extremely high oxygen and moisture barriers. VMLB03 film has moisture barrier of 0.03 g/[m.sup.2]-day at 100 F and 100% humidity humidity, moisture content of the atmosphere, a primary element of climate. Humidity measurements include absolute humidity, the mass of water vapor per unit volume of natural air; relative humidity (usually meant when the term humidity , plus oxygen barrier of 0.23 cc/[m.sup.2]-day at 73 F and 100% humidity. It was developed by Techni-Met as a clear film for electronic displays. The barrier coating is acrylate Noun 1. acrylate - a salt or ester of propenoic acid propenoate salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal) and aluminum oxide aluminum oxide: see alumina. , sputtered onto 3- to 7.5-mil film in a vacuum chamber, where it alloys directly with the polyester polyester, synthetic fiber, produced by the polymerization of the product formed when an alcohol and organic acid react. The outstanding characteristic of polyesters is their ability to resist wrinkling and to spring back into shape when creased. . VML-BO3 films are available in 12-in.-wide rolls, and 14- and 24-in. rolls will be introduced at the end of the summer. They cost roughly $3/sq ft. Tel: (860) 688-2300 * PTDirect: 582XT |
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