Polyethylene for injection moldings
CA 2562292 C · Owner: Mihan, Shahram · Inventors: Kipke, Jennifer; Lilge, Dieter; Mihan, Shahram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with 1- alkenes and has a molar mass distribution width MW/Mn of from 3 to 30, a density of from 0.945 to 0.965 g/cm3 a weight average molar mass , Mw of from 50 000 g/mol to 200 000 g/mol a HLMI of from 10 to 300 g/10 min , and has from 0.1 to 15 branches/1000 carbon atoms wherein the 1 to 15 % by , weight of the polyethylene having the highest molar masses have a degree of branching of more than 1 branch of side chains larger than CH3/1000 carbon atoms, a process for its preparation, catalysts suitable for its preparation and also injection moldings in which this polyethylene is present.
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 April 25, 2005 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.