Polyolefin composition, molded article thereof and multilayered laminate
CA 2117856 C · Owner: Iwamoto, Satoshi · Inventors: Watanabe, Kazuyuki; Iwamoto, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyolefin composition, which comprises:(A) 1 to 99 % by weight of a polyolefin having the following properties of (a) to (e); (a) a ratio of kinematic viscosity .eta. 1 at a frequency of 10 -1 rad/sec to kinematic viscosity .eta. 2 at a frequency of 10 rad/sec at a temperature of 190 ~ according to a kinematic viscoelasticity determination method of 4 to 20, (b) a crystallization peak temperature Tcp according to a Differential Scanning Calorimetry of 110 to 130 ~, (c) a ratio (Tmp/Tcp) of melting peak temperature Tmp to crystallization peak temperature Tcp according to a Differential Scanning Calorimetry of 1.1 to 1.5, (d) Tmp/(Tmp-Tcp)= 3.0 to 9.8, and (e) a crystal structure …
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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 October 11, 1994 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2016.
- 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
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Sources & verification
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.