A method and composition for bonding fibres to rubbers
CA 2469203 A1 · Owner: Thomas Swan & Co. Ltd. · Inventors: Rutherford, James Anthony; Richardson, Frank Barnett
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and composition for the bonding of fibres to rubbers the method , comprising the steps of treating the fibres with a primer treating the fibres , with a resorcinol/formalin/latex preparation and curing the rubber in intimate contact with the treated fibres, wherein the primer comprises a ring-opened maleinised polybutadiene and a phenolic derivative comprising electronwithdrawing groups. The composition can be the primer alone or in combination with the primer alone or in combination with the resorcinol/formalin/latex preparation.
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 December 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2024.
- 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.