|Citroën DS5. Click to enlarge.|
PSA Peugeot-Citroën Group has adopted plastic glazing made from Teijin Chemicals Limited’s Panlite polycarbonate resin in the rear quarter windows (quarter lite) of the Citroën DS5 five-door hatchback unveiled at the 2011 Shanghai Motor Show.
In the drive to produce more environmentally friendly vehicles, the automotive industry is turning increasingly to lightweight plastic for the production of vehicle frames, bodies and windows. Plastic glazing is attractive due to its favorable combination of low weight and high impact resistance.
The quarter polycarbonate windows incorporating Teijin Chemicals’ proprietary material technology were developed jointly with freeglass GmbH Co. KG, a global automotive Tier-1 leader in plastic glazing. PSA Peugeot-Citroën Group has selected freeglass GmbH Co. KG and Saint-Gobain Sekurit to supply the complete glazing car set of the DS5.
During the engineering phase of the DS5 vehicle, Teijin Chemicals and freeglass developed a specific grade of black polycarbonate alloy material, which is incorporated in the composition of the quarter windows. This material will be supplied by Teijin Chemicals for mass production over the next six years. Through the project, Teijin Chemicals and freeglass will expand their cooperative relationship, which started in the end of the 1990s, in the field of plastic glazing for the development of new technologies and materials.
The quarter window is manufactured by molding a transparent glazing and a black gloss pillar cover into an integrated piece by multi-component injection-compression and then applying hard-coating on both the internal and external sides for durability. The result is a sophisticated appearance and superior aerodynamic profile. In addition, glazing weight has been reduced by 20% compared to a conventional glazing solution.
Teijin Chemicals’ Panlite is already used in a diverse range of vehicles made by Smart, Daimler, Seat, Honda and Porsche. Teijin Chemicals is now developing, in cooperation with freeglass, a new hard-coating technology that will further improve Panlite’s weather- and wear-resistance for even wider use in vehicles.
Since December 2009, Teijin Chemicals’ Mobility Business Project, a specialized unit for providing innovative solutions to the global automotive market, has been increasingly expanding its business. The company has one of the largest multi-component rotary injection-compression molding machines with 4-axis parallelism control, which enables the production of 1.7 square-meter single-piece molds for multi-component panoramic roof systems and body panels.
freeglass, created in 2001 in Germany, is a subsidiary of Saint-Gobain Sekurit located near Stuttgart. The company is a leader in the field of plastic glazings and has developed advanced dedicated technologies used in the field of multi-component injection molding, flow coating and encapsulation applied to automotive glazings.
Several new vehicle models will be equipped with plastic glazing manufactured by freeglass in 2011 and 2012 in various application areas.