Boiler chemicals and method of preventing corrosion of boilers
CA 1332786 C · Owner: Kurita Water Industries Ltd. · Inventors: Taya, Shiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a boiler chemical having both oxygen scavenging function and softening function. The boiler chemical contians a starch phosphate and/or a water-soluble salt thereof. A starch phosphate and/or a water-solbule salt thereof are/is added to the boiler feed water in a given amount or an amount as determined by the phosphate ion concentration in the boiler water and scaled, as measured whereby the, boiler is prevented from being corroded.
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 November 1, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 1, 2011.
- 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.