Crosslinkable silicone composition useful, in particular for producing water-repellent and/or oil-repellent coating and/or impregnation, with low surface energy
CA 2335926 A1 · Owner: Mignani, Gerard · Inventors: Mignani, Gerard; Olier, Philippe; Priou, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an improved perfluorinated silicone composition to obtain antifouling coating and/or impregnation provided with improved properties for adhering to substrates and with increased life span. The invention concerns a crosslinkable silicone composition useful for making various supports water-repellent and/or oil-repellent to provide them with low surface energy. Said composition comprises: at least a POS A perfluorinated by radicals selected among the carboxylic diacid perfluorinated esters capable of forming anhydrides (e.g. maleic acid- bifid graft Gf); at least a crosslinking agent B (divinyltetramethyldisiloxane) perfluorinated or not and capable of reacting with the …
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 June 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2021.
- 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.