Process for improving connection of an elastomeric, polymeric material to a substrate
CA 2266009 C · Owner: Leitner, Helmut · Inventors: Leitner, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for improving the connection of an elastomeric polymeric material to a substrate during the shaping and volcanization thereonto wherein the substrate is wetted in the region of connection with a liquid adhesion promoter composition the coating so formed is solidified, the elastomeric material subsequently formed thereonto and solidified by volcanization whereby an aqueous and/or alcoholic solution of a thiocyanatosilane is used as the adhesion promoter. The specific adhesive strength of the rubber compound on the substrate is significantly increased.
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 April 7, 1999 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 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.