Fluorocarbon containing, reactive polymeric surfactants and coating compositions therefrom
CA 1314353 C · Owner: Mccrackin, Perry J. · Inventors: Coburn, Charles E.; Mccrackin, Perry J.; Schmidt, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a water-soluble crosslinkable polymeric surfactant having fluorocarbon and ionic moieties. Such surfactant can be cured into tough, solvent resistant, low critical surface tension coatings useful for protective finishes on metal plastics and fabrics. This surfactant has (1) at least one pendant fluorocarbon moiety and (2) at least one pendant ionic moiety which is capable of reacting with a counterion to form a crosslinked polymer. The reactive ionic moieties on the polymer chain can be anionic, cationic or zwitterionic (having an equivalent amount of both cationic and anionic moieties). 35,564-F
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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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.