High-functionality compositions based on fluorinated and silanized polyisocyanates and varnishes prepared therefrom
CA 1318445 C · Owner: Trovati, Aldo · Inventors: Pin, Giorgio; Trovati, Aldo; Federici, Franco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High-functionality compositions based on fluorinated and silanized polyisocyanates, prepared by reacting a hydroxyterminated perfluoropolyether having an average molecular weight ranging from 500 to 7000 and a silico-carbinol having an average molecular weight ranging from 500 to 7000 with an organic diiso-, cyanate and a polyol having a functionality of at least 3. Varnishes containing said compositions based on fluorinated and silanized polyisocyanates, having a high functionality.
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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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
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.