PROCESS FOR MANUFACTURE OF THERMOFORMABLE PANELS

摘要

Process for the manufacture of thermoformable panels or boards from ligno-cellulose fibres emanating e.g. to the extent of 20 - 100% from recycled paper wherein in order to improve filterability, avoid pollution problems and ensure a product of high quality, at least one fraction of fibres is grafted, with an olefinic monomer in the presence of a redox catalytic system at a pH value of below 4, this operation being carried out in a suspension of fibres in water. This process is used i.e. for the production of moulded articles such as car door liners.