Polymer-modified inorganic particles
CA 2436995 A1 · Owner: Agrolinz Melamin Gmbh · Inventors: Granner, Gerd; Machherndl, Markus; Dicke, Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to polymer modified inorganic particles with a layer structure with an average particle diameter of 5 nm to 20000 nm containing 20 , to 5000 mass % interlamellarly in relation to the anhydrous inorganic particle, of a mixture of aminoplasts and water. These polymer modified inorganic particles are produced by swelling the inorganic particles with aldehydes and then reacting the inorganic particles with multifunctional C1- C30 amino compounds. The invention also relates to plastics containing polymer modified particles with a layer structure and to semi-finished products and moulded materials produced from the same.
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 December 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2023.
- 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.