Rubber-based aqueous developable photopolymers and photocurable elements comprising same
CA 2286058 A1 · Owner: Polyfibron Technologies, Inc. · Inventors: Reimers, Jay L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Photocurable compositions and methods for making the same are provided. The compositions comprise at least one ethylenically unsaturated monomer at least , one photoinitiator, and at least one water dispersible ethylenically unsaturated rubber. The ethylenically unsaturated rubber is tendered water dispersible by reaction of olefinic functionality therein with a hydrophilic diene. The resulting water-dispersible ethylenically unsaturated rubber is then blended with one or more ethylenically unsaturated monomers and one or more photoinitiators.
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 July 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2020.
- 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.