Polyolefinic compositions endowed with a high impact stregth
CA 2026016 A1 · Owner: Montedison S.P.A. · Inventors: Milani, Federico; Massari, Paola; Lori, Domenico
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polyolefinic compositions endowed with a high impact stregth, comprising:, a) 35-45% by weight of a C2/C3 copolymer containing from 4 to 10% by weight of C2 and exhibiting a melt flow rate (M.F. R.) from 10 to 20 g/10 minutes at 230°C and 2.16 kg; b) 35-45% by weight of a C2/C3 copolymer containing from 4 to 10% by weight of C2 and exhibiting a M.F.R. from 35 to 45 g/10 minutes at 230°C and 2.16 kg; c) 10-30% by weight of a C2/C3/(diene) elastomer containing from 40 to 55% by weight of C3 and from 0 to 5% by weight of a diene monomer, which is amorphous to X-rays and is characterized by :, - .alpha. 2 + .alpha. 4 higher than 16% - R1 x R2 lower than 0.5, - M.W.D. lower than 3 - Mooney …
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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 September 24, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2012.
- 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.