Use of fly ash as a refractory material in fire protection products

摘要

1,267,373. Fibre board containing cavities. C. E. ZWICKERT. 19 March, 1969 [30 March, 1968; 30 Sept., 1968], No. 14358/69. Heading C3N. [Also in Division C1] A panel, made from wood, linen, natural or synthetic fibres agglomerated by an adhesive, comprises one or more cavities or cells filled with a fly ash composition preferably containing an expanding agent, e.g. borax and a thermosetting resin adhesive and optionally sand, fire clay, cement, lime, porcelain, pumice, vermiculite, asbestos, plaster, wood and NaHCO 3 .