Caseinate-based biodegradable films and their process of manufacturing by irradiation
CA 2203746 A1 · Owner: Lacroix, Monique · Inventors: Brault, Denis; Lacroix, Monique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Packaging and even overpackaging of consumer products is a common practice in industrialized countries. Since the packaging basically consists of nonbiodegradable polymers it is causing environmental problems. These problems are found not only in industrialized countries but also in developing countries. The situation has prompted the development of various films that are more ecologically friendly using biodegradable polysaccharide protein and/or fat based components. We have developed a biodegradable protein film from a casein salt. The casein of dairy origin, is abundant and could even be recovered from unsold milk. The polymerization process is induced by gamma irradiation. The …
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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 April 25, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2019.
- 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.