Method for selectively separating used comminute organic materials by means of dense aqueous suspensions
CA 2541939 C · Owner: Galloo Plastics (S.A.) · Inventors: Seinera, Henri; De Feraudy, Hugues
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for selectively separating synthetic organic materials such as polymers and/or reinforced or non-reinforced copolymers in the form of wastes in particular domestic wastes recyclable in order to be reused. Said synthetic organic materials are recuperated from broken used cars and obsolete consumer durable products. The inventive method for selective separation consists in separating materials which have an identical density threshold value and are selected from a dense medium comprising separate liquid fluid suspensions which consist of powdery disperses particles in an aqueous phase and are stabilised with respect to the density threshold value selected in …
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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 October 15, 2004 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2026.
- 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
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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.