Ff injection-mouldable compounds or ff unfired mouldings based upon mgo
CA 1284252 C · Owner: Didier-Werke Ag · Inventors: Hlawatschek, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to fireproof sprayable, compounds, or fireproof, unfired mouldings containing, as the main fireproof component sintered magnesite, sintered dolomite, or a mixture thereof together, with 0.5 to 5% by weight of bentonite 1 to 5% by, weight of aluminium sulphate and 0.5 to 5% by weight, of an alkaline earth compound comprising caustic calcined magnesite, magnesium hydroxide or a mixture thereof. The compounds or mouldings according to the invention have the advantage that they do not suffer from bondingagent migration and that no devaporization cracking or flaking occurs.
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 May 21, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 2008.
- 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.