Incombustible board containing mineral and cellulosic fibers and metal oxide and method therefor专利检索- 镁质水泥或类似的水泥专利检索查询-专利查询网

Incombustible board containing mineral and cellulosic fibers and metal oxide and method therefor
申请号	US12774361	申请日	1961-07-28	公开(公告)号	US3220918A	公开(公告)日	1965-11-30
申请人	DOMTAR LTD;			发明人	STEVEN SHISKO WALTER;
摘要
权利要求	5. AN INCOMBUSTIABLE FIBROUS BOARD CONTAINING A MIXTURE OF CELLULOSIC AND MINERAL FIBERS AND AN OXIDE OF ONE OF METALS OF THE GROUP CONSISTING OF MAGNESIUM, ZINC AND CALCIUM, SAID CELLULOSIC FIBERS BEING PRESENT IN THE AMOUNT OF 25 TO 75% OF THE TOTAL FIBERS AND SAID OXIDE BEING PRESENT IN THE AMOUNT OF 40 TO 20% OF THE TOTAL WEIGHT OF THE FIBERS. 8. A PROCESS OF MAKING AN INCOMBUSTIBLE MOULDED FIBROUS BOARD COMPRISING FORMING A SLURRY OF CELLULOSIC AND MINERAL FIBERS, WHEREIN CELLULOSIC FIBERS CONSTITUTE 25% TO 75% OF THE TOTAL FIBERS, ADDING TO THE SLURRY AN OXIDE OF A METAL OF THE GROUP CONSISTING OF MAGNESIUM, CALCIUM AND ZINC IN AN AMOUNT BETWEEN 40% AND 200% OF THE WEIGHT OF THE TOTAL FIBERS AND FORMING A BOARD FROM SAID SLURRY.
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