Reaction products of boric acid and alkanoletheramines and their use as corrosion inhibitors
CA 1337993 C · Owner: Rewo Chemische Werke G.M.B.H. · Inventors: Urban, Georg F.; Hadamik, Franz-Josef; Kappa, Wilfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a product formed by reacting under condensation conditions in effective molar, ratios, an orthoboric acid and an alkanoletheramine having the formula:, H(OCHR-CH2)n OR1NH2, wherein R is hydrogen or lower alkyl, R1 is lower alkylene and, n is 1-5.
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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 January 23, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2013.
- 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
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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.