Feb 20 2009
TCTech, the leading global supplier of intelligent plastic nanostructures, today announces that the company has been granted a patent for its Wet Coil technology by the European Patent Office.
The patent describes an improved device and method for injection moulding and pressing, but can also be used for other thermal cyclic techniques. The moulding device comprises an inductive coil for active heating, with a plurality of windings, which partly is placed in a cooling duct groove close to the surface of the mould or embossing tool. This enables extremely fast cycle times with less clamping force for low birefrengence, along with an efficiently and even distribution of both heating and cooling.
The patent could be used for producing a broad variety of products. In general, devices for injection moulding using the patent are suitable for producing thin structures, such as optical information carriers such as CDs, DVDs and Blu-Ray Discs. Another area is thermal pressing of light guide plates, used e.g. to backlight LCDs in laptop computers.
This patent (#EP1800828), which is valid for 20 years, is the first in a family of about ten patents that TCTech expects will be granted to the company in the near future.
Thermal Cyclic Technologies AB (TCTech) is a global leader in the research, development and production of intelligent plastic nanostructures. The production is based on TCTech’s innovative and patented thermal cyclic moulding and pressing technology.
TCTech’s five product and business areas are Consumer Electronics Lenses, Light Guide Plates, Wedge designed optical panels, Photovoltaic thin film solar cells, and Sheet Moulding Compounds. TCTech was founded in 2005 and is based in Stockholm, Sweden.