Gypsum microfiber sheet material

Details Gypsum microfiber sheet material Gypsum microfiber sheet material

D - Textiles, Paper

21

H

D21H 13/36 (2006.01) C04B 14/38 (2006.01) C04B 26/28 (2006.01) C04B 30/02 (2006.01) D21H 11/00 (2006.01) D21H 13/46 (2006.01)

Patent

CA 2130271

2130271 9414885 PCTABS00032 The novel composition of the present invention comprises a paper-like sheet material or non-woven mat (10) which contains water-insoluble gypsum anhydrite microfibers (12) and a cellulosic binder, such as cellulose fibers (14), optionally with glass fibers (16), which has surprising fire-retardant properties. Typical paper processing methods or wet process mat techniques are utilized in preparing this material. The flexible gypsum microfiber sheet or mat (10) of this invention may be used as microfiber insulation, particularly in a fire retardant barrier.

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