Filled polyethylene compositions
CA 2278717 A1 · Owner: The Dow Chemical Company · Inventors: Bieser, John O.; Turley, Robert R.; Bethea, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The subject invention is directed to a polyethylene composition comprising from 5 to 70 weight percent of a homogeneous ethylene/.alpha.-olefin interpolymer, from 30 to 95 weight percent of at least one filler and from , 0.1 weight percent to less than 10 weight percent of at least one functionalized polyethylene. The polyethylene compositions of the present invention exhibit high tensile strength high indentation resistance and , filler holding capacity and are especially useful for floor tile and sheeting applications.
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 February 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2020.
- 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.