Process for preparing calcium silicate shaped product
CA 1182980 A · Owner: Mitsubishi Chemical Industries Ltd. · Inventors: Oguri, Yasuo; Abe, Mitsunobu; Saito, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing a shaped calcium silicate product comprises (a) forming an aqueous slurry of calcium silicate hydrate obtained by heating and reacting a calcareous source with a siliceous source in water as a dispersion; (b) molding said aqueous slurry into a shaped object; (c) heat treating said molded product under the conditions specified by the following relationships (I) and (II): 100 ? .theta. ? T ......(I), 50 ? .theta. ? 300 ......(II) wherein 0 represents the temperature (°C) of the interior of said molded product and T represents the time (hrs) with the proviso that the amount, of water loss during said heat treatment is less than 25 wt.%; (d) optionally steam curing said …
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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
- 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.