Method of bonding silicone elastomer to a substrate
CA 2034909 C · Owner: Pascucci, Carlo · Inventors: Wolf, Andreas T. F.; Pascucci, Carlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of bonding a silicone elastomer to a substrate which comprises treating the surface of the substrate with a cleaning agent which is a polydiorganosiloxane, for example a polydimethylsiloxane and thereafter applying to the treated surface a room temperature curing silicone elastomer-forming composition. The method finds particular application in the construction industry for the bonding of sealants to non-porous substrates such as aluminium.
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 January 24, 1991 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2013.
- 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.