Car undercoating composition
CA 1207480 A · Owner: Chapman Enterprises Corp. · Inventors: Trousil, Edward G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved water based, undercoating composition, primarily designed for undercoating of vehicles to prevent corrosion. It is a budadiene-styrene based polymer latex composition which contains from about 5% to about 20% by weight of mica as a filler and flattener which provides an effective moisture barrier and also functions to prevent premature gelling of the composition in combination with a sufficient amount of ammonium hydroxide to provide a composition pH within the range of 7.5 to 10.0 and, in addition, to provide enhancement of anti-foaming properties of the composition. The balance comprises small but effective amounts of minors such as a wetting agent, a defoaming agent, a …
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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 July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
- 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.