Switching Glass for Resin
As part of the drive to reduce vehicle weight and improve fuel efficiency in the automotive industry, automotive windows are changing. Polycarbonate-resin (PC-resin), which offers 200 times greater resistance to impact at just half the weight of glass, is a promising new material contributing to weight-reduction. However, PC-resin is less abrasion-resistant than glass and yellows after long-term exposure to sunlight.
The World’s First Resin Front Window
To overcome these obstacles, Teijin has developed a new coating technology, which provides PC-resin with excellent weather resistance and the same level of abrasion resistance as glass. This technology can be applied evenly on large or complex-shaped windows made of resin. Furthermore, it achieves abrasion resistance satisfying not only the new Japanese automobile safety standards but also those of the US and EU. So for the first time ever, it is possible for PC-resin to be used for automotive front windows.
So Much More than
Just an Alternative to Glass
Teijin’s PC-resin automotive front window brings together Teijin’s technologies to eliminate the need for pillars to support a glass front window. As a result, their PC-resin pillar-less window is 36% lighter in weight than a conventional front window with a pillar. The transparent PC-resin window achieves unobstructed slight lines for the driver, improving safety, while making driving more fun. Realizing more light-weight vehicles, making driving safer and more comfortable, Teijin will use their proprietary technologies to continue improving PC-resin windows for practical use by the wider automobile industry.
Lightness Will Drive
of the Future
Preserving our environment, including the prevention of global warming and controlling the consumption of fossil fuels, is a task that must be tackled globally. In the automotive industry, demand for CO2 emission reductions and improvements in fuel efficiency is growing. Weight-reduction will play a key role in meeting these needs. Excellent environmental performance must be achieved without compromising safety, so to achieve stronger, more lightweight automobiles, new innovations are required.
The Answer is
in the Combination
Teijin is rising to the challenge of next-generation automobiles through its composite materials and products, combining different fibers and resins. By combining reinforced fibers such as carbon fiber, glass fiber and aramid fiber, with thermoplastic resins such as nylon and polycarbonate, or thermoset resins such as vinylester and epoxy resin, Teijin can produce properties suitable for many different applications. Furthermore, by utilizing their design technology, Teijin can maximize the strength of composites, reducing costs for their customers.
Imagining a More
What's more, Teijin's composite material and products made using thermoplastic resins improve productivity, therefore contributing to reducing CO2 emissions during manufacturing. Composite material and products using thermoplastic resins are easy to reshape after molding, allowing for reuse and reform. This reduces environmental impact throughout the lifecycle of products. Aiming to reduce both car weight and environmental impact, Teijin will continue to challenge weight reduction.