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2007-11-14 Manufacturing News
SABIC new plastics films for portable electronics SABIC Innovative Plastics launches new Lexan DMX polycarbonate films offering a full array of properties for portable electronics applications.
Lexan DMX polycarbonate (PC) films feature a proprietary layered construction
leveraging SABIC Innovative Plastics Lexan DMX resin for enhanced performance,
aesthetics, durability, and processing to accommodate a wide range of
products such as cell phones and laptops A, B and C covers, palm rests,
keypads and handheld device designs. “Electronics manufacturers have been looking in vain for a plastics film offering a full array of performance, aesthetic, and processing benefits, not just a few,” said Josh Ayer, global film product manager for SABIC Innovative Plastics. “There’s been a market gap that SABIC Innovative Plastics’ new Lexan DMX films have now filled. With this proprietary technology, portable device and laptop manufacturers can achieve improvements across the board, from gorgeous colors and effects to super toughness, as well as the potential for improved production yields.”
Although there are several traditional approaches to producing covers, palm rests, and other applications for portable electronics, each has significant drawbacks. Semi-curing a hard coating on PC requires special lighting, limits shelf life, and results in lower yields. Ink transfer onto a PMMA or PC substrate is not suitable for edge wraps and limits formability. Hard-coating polyethylene can result in loss of clarity and significant shrinkage on deep draw applications.
Addressing these and other challenges, SABIC Innovative Plastics new Lexan DMX plastics films provide the following attributes:
From a processing standpoint, SABIC Innovative Plastics Lexan DMX films can be easily thermoformed to =35mm draw depth, and lend themselves to IMD and printing. The development of a highly polished film with consistent stress and cap-layer uniformity plus a thermoformable masking has been critical to meet the demands of IMD print registration, multi-pass printing and fabrication. These features allow original equipment and design manufacturers to achieve intricate designs and develop harder surfaces for their applications. Salt water and isopropanol resistance, uniform coefficient of thermal expansion and low yellowness index are other key features of Lexan DMX films that are attractive to cellphone and laptop manufacturers. There are currently two grades of Lexan DMX film available: Lexan DMX 1HD00-112 film and Lexan DMX 1HDA3-112 film. Lexan DMX 1HD00-112 film is polished on both sides while Lexan DMX 1HDA3-112 film is polished on one side and matte on the other. SABIC Innovative Plastics Lexan DMX film is manufactured at the company’s
Mt. Vernon plant and is available globally.
. New plastics films provide protection
for plastics cards
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