Method of producing mullite ceramic fiber
CA 1163070 A · Owner: Isolite Babcock Refractories Co. Ltd. · Inventors: Nakagami, Kashiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mullite ceramic fiber produced by mixing an aluminosilicate fiber having less than 72 weight per cent of A1203 with high-alumina substances such as, polycrystalline high alumina fibers having more than 72 weight per cent of A1203, and heating of the mixture to about 1,303 to 1,450°C results in arefractory material characterized by lower bulk density a low degree of, contraction, substantial maintenance of original fiber shape and total or nearly, total consumption of free silica with corresponding reduction in silicic acid.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2001.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.