Patent ID: 8147743

Claim:
A method for deforming a plastic plate comprising a core of resin-treated fibers, the method comprising compressing the plate by compression in a press under elevated pressure and temperature conditions in a compression step, and then deforming the plate in a mould in a deformation step, wherein the plastic plate has a temperature in the range of (Tg+15° C.)-(Tg+115° C.) prior to being deformed in the mould and during the deformation step, wherein Tg (° C.) is the deformation or glass transition temperature of the plastic plate and the Tg is at least 70° C., wherein the Tg is determined by a DMTA measurement, a three point bending method performed at a frequency of 1 Hz, at a heating rate of 10° C./minute, a starting temperature of 20° C. and a final temperature of 220° C.; and wherein after the deformation step, the deformed plastic plate is cooled in the mould to a temperature that is at least 30° C. lower than the Tg-value of the plastic plate.