Polyolefin compositions and films obtained therefrom
CA 2294237 A1 · Owner: Ciarafoni, Marco · Inventors: Anibaldi, Remo; Collina, Gianni; Ciarafoni, Marco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polyolefin compositions comprising from 70 to 99 parts by weight of a composition (A) comprising: (i) from 75 to 95 % by weight of a copolymer of ethylene with an .alpha.-olefin CH2=CHR wherein R is an alkyl radical having , from 1 to 10 carbon atoms; and (ii) from 5 to 25 % by weight of a copolymer of propylene with ethylene and/or an .alpha.-olefin CH2=CHR1 wherein R1 is an , alkyl radical having from 2 to 10 carbon atoms and from 1 to 30 parts by weight of a polyolefin component (B) comprising crystalline polybutene-1. The polyolefin compositions of the invention are endowed with an improved processability while the films obtained therefrom show improved mechanical properties with …
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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 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2021.
- 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.