GLASS MICRO FIBRE BASED PAPER AND HIGH PERFORMANCE AEROSOL FILTER,BATTERY SEPARATOR ELEMENT OR COMPOSITE PAPER COMPRISING SAID GLASS MICRO FIBRE BASED PAPER

摘要

Paper based on glass microfibres obtained by centrifuging molten glass and drawing by means of an annular gas stream, at high temperature and velocity, along the peripheral wall of the centrifuge. The centrifuge rotates at a peripheral speed of between 50 and 20 m/s and the glass load is smaller than 6 tons per day per metre of centrifuge periphery in the case of 2-3 micron microfibres and less than 1 ton per day and per metre of centrifuge periphery in the case of microfibres of less than 1 micron. …Application especially to the production of air filters and separators for accumulator batteries.