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2006-07-11 News Headlines

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GE Plastics new Xtreme heat resins shine

GE Plastics new Lexan Xtreme heat resins portfolio offers automotive lighting designers new material choices for their most demanding applications.

As space and weight constraints drive more compact, sleeker forward lighting components, automotive suppliers seek materials that can meet the challenges posed by these new designs, including higher temperatures from proximity to bulbs and thinner-wall parts for reduced mass. Addressing this demand, GE Plastics’ new Lexan* Xtreme Heat (XHT) resin portfolio, one of the company’s Signature Surfaces* solutions, now offers automotive lighting designers new material choices for their most demanding applications. Lexan XHT resins deliver excellent resistance to deformation and color shift under high-heat conditions, and surpass many competitive materials such as thermosets in recyclability potential, density, and flow characteristics. Further, when used for bezels and reflectors, new Lexan XHT resins enable direct metallization, which eliminates the costs and environmental impact from pre-coating the part with paint or lacquer.

“These innovative materials complement GE’s existing offerings, giving designers exciting new choices,” said Jim Wilson, global market director for GE Plastics’ Automotive Lighting division. “Lexan Xtreme Heat resins not only address today’s tough auto lighting challenges, they also provide an environmentally responsible alternative to materials that can’t be recycled or require pre-coating before metallization. This further supports GE’s ecomagination* initiative to create innovative new materials solutions that benefit our customers, the environment, and society at large.”

For Brilliant Auto Lighting Design, GEs New Lexan* Xtreme Heat Resins Shine with Performance, Weight & Processing Advantages. Click Go for High resolution image. photo: GE Plastics

High-Temperature Resistance for Compact Forward Lighting Designs The ability of GE’s Lexan XHT resins to withstand high temperatures is critical for today’s lighting designs, which are trending toward reduced space between the bulb and the lens, higher vehicle voltages, and minimal incursion into the engine compartment. When vacuum-metallized, Lexan XHT resins can withstand temperatures of up to 200 C without blistering, hazing, delaminating, or losing their brilliant luster. Current resin grades are excellent candidates for auto headlamp bezels and reflectors, while others in development will target lenses and other components.

Enhanced Flow Characteristics for Thinner-Wall Parts
To help designers create thinner-walled lighting components that can reduce size and weight, Lexan XHT resin grades offer improved flow characteristics for injection molding. Enhanced flow helps decrease melt temperatures and cooling requirements, decreasing cycle times by as much as 10 percent. In new designs, the GE resins offer an opportunity to decrease wall thickness and material costs.

Lighter Weight for Improved Fuel Efficiency
Compared with competitive materials, GE’s Lexan XHT resins have a lower specific gravity that can help auto suppliers reduce part weight for better fuel efficiency. The GE materials have a specific gravity of 1.22 vs. 1.9 or higher for many thermoset resins. Even competitive thermoplastic materials used in lighting applications, such as polyethersulfone (PES), are as much as 12 percent denser than Lexan XHT resins.

GE Plastics’ new Signature Surfaces solutions includes the company’s recently introduced LiteDesign web-based toolbox of advanced predictive technologies and other online services to help automotive lighting designers streamline the design optimization and material selection process for greater time and cost savings.

Read a recent press release from GE Plastics about - 'Heiner Markhoff has been named general manager of GE Plastics, Europe, and will be responsible for business and commercial operations within the region.'

* Lexan, Signature Surfaces, ecomagination, and LNP are trademarks of General Electric Company.

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