Composite coating having enhanced corrosion resistance
CA 1063890 A · Owner: Diamond Shamrock Corporation · Inventors: Germano, Victor V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Composite coatings of an undercoating plus a subsequent, coating each containing a multi-valent metal can achieve, excellent corrosion protection when the coatings are subjected to appropriate heat curing. Such curing for a subsequent coating is generally under conditions unlike those of a similar, or the same, undercoating. Firstly control over, cure temperature and time is exercised with the undercoating to virtually eliminate its water sensitivity. Then for example, water quenching may be used in cooling. Next differ-, ing cure conditions for the topcoating are used to favor augmented corrosion resistance for the composite.
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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 October 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 9, 1996.
- 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.