Low adhesion compositions of perfluoropolyethers
CA 1330912 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Mcintyre, Daniel K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coated article is provided. The coated article has a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer. The oligomer has a poly(perfluoropropyleneoxy) segment, CF(CF3)CF2Od which, has a number average molecular weight of about 800 to 25,000.
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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 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 2011.
- 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.