Biologically degradable plant cover film and method of preparing same
CA 2027063 A1 · Owner: Biodata Oy · Inventors: Suominen, Hannu L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A biologically degradable film is prepared consisting of a synthetic polymer and a biologically degradable polymer. The biologically degradable polymer is divided into small particles by means of enzymes produced by microbes in the form of spores which, enzymes split and release small molecules from the surface of the biopolymer particles. After achieving desired particle size an, emulsion is formed with vegetable oil and particles coated with enzyme protein become coated with vegetable oil which at the same time, interrupts the degradation of the biopolymer particles by the enzyme. The coated particles with the oil is separated from the suspension to remove small molecules after which the …
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 October 5, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 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.