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News

Bayer Corporation Introduces Two-Layer Construction (TLC) Process

Bayer MaterialScience AG : 19 September, 2001  (Company News)
Bayer Plastics' patented two-layer construction (TLC) is ideally suited for film ;INSERT molded parts with a wall thickness less than .080 inches. TLC bonds a second layer of film to the backside of a printed graphic.
This protects it from coming into contact with the high temperature injected molding resin during the film insert molding (FIM) process. The TLC design minimizes the effect of shear heating, which can cause graphic distortion and ink washout in thin-wall FIM applications. This becomes significant in hand-held electronic and telecommunication devices.

'In the past, traditional FIM parts had wall thicknesses greater than .080 inch,' said Patrick Griffin, Senior Technical Marketing Specialist, Bayer Plastics. 'As a result, graphic distortion was less of an issue. Now, it can be our customers' greatest issue. That's why two-layer construction is proving crucial in next-generation electronic and telecommunication devices. 'We have not even begun to see the graphic design possibilities in hand-held devices,' added Griffin.

Bayer AG developed the TLC design more than 10 years ago to meet the growing need for second-surface decorated applications in the automotive industry. Now this design process is also meeting the functional and aesthetic needs of electronic and telecommunication products in Europe and Asia.

From various graphic designs to a variety of color options on a part, TLC helps customers design the next trend in handheld devices. 'We are now seeing growing U.S. demand for similar product designs,' said Griffin. 'Bayer's experience over the years allows us to make an immediate impact with our U.S.-based customers.' Bayer Plastics is a pioneer in FIM technology. FIM starts by decorating a film such as Bayer's Makrofol« polycarbonate or Bayfol« polycarbonate blend films.
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