Water-based alcohol hydroxycarboxylic peroxide compositions, preparation, and uses thereof
CA 2275304 A1 · Owner: Napier Environmental Technologies Inc. · Inventors: Vitomir, Sergio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preparing an environmentally safe composition free of chlorinated solvents which is non-flammable, fully biodegradable and low odor and the use , of such composition for the removal of various coatings from metal substrates. The composition comprises a water-based mixture of one or more high boiling high flash aromatic solvent(s), a peroxide generating agent and a , hydroxycarboxylic acid. It can be prepared as a liquid and used as such for immersion/dipping operations or as a thick paste "cling type" material when optimal application requires a thin film. These can be applied by spraying or brushing.
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
- Filed December 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2019.
- 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.