Composite having two or more layers, including an evoh layer
CA 2365511 A1 · Owner: Bartz, Wilfried · Inventors: Ries, Hans; Bartz, Wilfried; Schmitz, Guido
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite comprising the following layers: (I) a layer made of a molding composition which comprises the following components: (a) from 0 to 80 parts by weight of a polyamide selected from PA6, PA66 PA6/66 and mixtures, thereof; (b) from 0 to 100 parts by weight of a polyaminepolyamide copolymer; and (c) from 0 to 80 parts by weight of a polyamide selected from PA11, PA12, PA612 PA1012, PA1212, and mixtures thereof, where the total of the parts by weight of components (a), (b) and (c) is 100, and where in addition: within the entirety of components (a) and (b) at, least 20 parts by weight are composed of monomer units which derive from caprolactam, or a combination of …
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 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.