Process for improving the adhesiveness of the surface of bodies fabricated from a polymeric material, and so obtained fabricated bodies
CA 2025575 C · Owner: Morra, Marco · Inventors: Garbassi, Fabio; Morra, Marco; Occhiello, Ernesto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for improving the adhesiveness of a surface of a body fabricated from a polymeric material. The process comprises the step of irradiating said surface with an electron beam with an energy not greater than about 5 keV and at a partial pressure of oxygen in the range of from about 2 x 10-5 to about 2 x 10-3 Pa. Thebody so treated may be used in the manufacture of an article selected from the group comprising films, doors, covers, decks cases, panels for use in the transportation industry, household electrical appliances automobiles, telecommunications devices business machines and packaging.
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 September 18, 1990 and granted July 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2012.
- 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.