Method for reducing the toughness of shaped plastic parts to be mechanically worked and the use thereof
CA 2464630 A1 · Owner: Ticona Gmbh · Inventors: Goerlitz, Wolfram; Heukelbach, Dirk; Beer, Ekkehard
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 reducing the toughness of shaped plastic parts, which is characterized in that at least one semi-crystalline polymer and at least one non-crystalline polyolefin are melted in a heated mixing unit and mixed, the produced mixture is processed to a shaped plastic compound and , the shaped plastic compound is processed to shaped parts. Said shaped parts have improved properties when machined.
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 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2024.
- 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.