A method for making mineral fibers comprising discharging molten glass as primary molten streams from orifices and joining at least one primary stream to an adjacent primary stream to form a coalesced stream of different cross-sectional shape from that of the orifices, and hardening the coalesced stream...http://www.google.es/patents/US4620859?utm_source=gb-gplus-sharePatente US4620859 - Method for making coalesced mineral fibers
