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SABIC Innovative Plastics is a leading, global supplier of engineering thermoplastics with a 75-year history of breakthrough solutions that solve its customers’ most pressing challenges. Today, SABIC Innovative Plastics is a multi-billion-dollar company with operations in more than 25 countries and over 10,500 employees worldwide. The company continues to lead the plastics industry with customer collaboration and continued investments in new polymer technologies, global application development, process technologies, and environmentally responsible solutions that serve diverse markets such as automotive, electronics, building & construction, transportation, and healthcare. The company’s extensive product portfolio includes thermoplastic resins, coatings, specialty compounds, film, and sheet.

Combining stunning aesthetics with environmental responsibility using lightweight Lexan* GLX resin.

When talk-show host Jay Leno asked GM’s Advanced Design Studio to create a mid-engine, turbine-powered supercar that would run on biodiesel, the designers knew they needed materials that were up to the challenge of this unique vehicle. Specifically, they required design freedom, high performance, exceptional aesthetics and environmental responsibility. The EcoJet supercar, which borrowed design influences from jet aircraft and Formula One race cars, demanded glazing components with a futuristic flair. At the same time, the windows, windshield and roofing panel had to enhance the overall intent to make the car environmentally progressive. To achieve all these objectives, the design team selected Lexan GLX resin from SABIC Innovative Plastics.

An automotive enthusiast and collector of more than 100 vehicles, “Tonight Show” host Jay Leno turned to GM’s Advanced Design Studio to see if race car-like performance and muscular design could be combined with “green” principles such as ultra-light weight and alternative fuels. Accepting the challenge, the studio sought materials that would enable aggressive styling while adhering to environmental goals such as reduction of emissions and improved fuel efficiency. The project, dubbed the EcoJet supercar, tapped many different technologies

– such as a shell constructed of carbon fiber over Kevlar – that combine extreme performance and futuristic styling with environmental responsibility. One of these technologies was next-generation glazing.

To avoid the weight disadvantages and styling limitations of glass, the designers looked for an alternative glazing material that could provide light weight, impact resistance for security and safety and exceptional clarity. The material also had to offer greater creative freedom than traditional glass. Specifically, the windscreen featured a severely raked design, with aggressive pillar curvature difficult to achieve with glass, and the turbine engine can be viewed through a large, distinctively shaped roof panel.

We recognized immediately that glass could not deliver on all the different requirements of the EcoJet glazing. The extreme shapes we needed, plus the light weight required to minimize fuel consumption and avoid top-heaviness, mandated a high-performance thermoplastic. Lexan resin has established a top reputation in the auto industry for design versatility and exceptional performance. When we learned about the GLX resin family of Lexan materials, we signed up.

Frank Saucedo, Director of Advanced Design, General Motors Design

SABIC Innovative Plastics Lexan GLX polycarbonate (PC) resin coated with Exatec® 900 glazing allowed GM’s Advanced Design Studio to create sleek yet durable glazing elements for the EcoJet, including windscreen, side windows and roof panel. This highly weatherable, lightweight glazing solution combines Lexan GLX PC resin with the Exatec® coating for resistance to abrasion and chemicals. This advanced glazing solution enables visual excitement with innovative finishes, functional integration of molded-in features and unprecedented design flexibility vs. glass for demanding automotive OEMs looking to incorporate high-performance functionality, optical quality and aesthetics into automotive windows.

Lexan GLX PC resin with Exatec 900 coating was chosen over more traditional competitive materials for the EcoJet because of its ease of manufacturing, scratch resistance, and high surface quality. In addition, the rear cover panel could not have processed with tempered glass methods due to the aggressive pattern.

Using Lexan GLX resin instead of glass enabled a weight savings of about 50 percent for better fuel economy. The American Plastics Council reports that for each 10 percent reduction in vehicle weight, mileage increases by seven percent.

Other benefits of Lexan GLX resin include

We are proud to be part of the design team that created the new 650 horsepower EcoJet vehicle. Through our environmentally progressive portfolio of products, SABIC Innovative Plastics is focused on developing materials that can enable OEMs, suppliers and designers to improve eco performance without impacting other important aspects of a vehicle, such as durability, safety and design creativity. Our materials together with Exatec’s glazing technology are being used in all types of vehicles – from family sedans to the most futuristic concepts – because it helps meet the requirements of today’s auto industry.

Derek Buckmaster, Market Director, Exterior Body & Glazing for SABIC Innovative Plastics

For more information on this source please visit SABIC Innovative Plastics.

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