Film or molded article of a thermolastic with a terpolymer component
CA 2093295 C · Owner: J.H. Benecke Ag · Inventors: Kopytko, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A film and molded article are described consisting of a, thermoplastic based on a partially crystalline ethylenepropylene-diene terpolymer, a homo- and/or copolymer of an alkene, and a polymeric modifying agent wherein the plastic, possibly contains stabilizers fillers, lubricants, colorants, and flame retardants as well as conventional additives. This film is characterized by the fact that the thermoplastic is a partially crystallized random ethylene-propylene-diene terpolymer that is at least 30% crosslinked, that the thermoplastic comprises an elastomer containing approximately 30 to 70 parts by weight of a homo- and/or copolymer of ethylene and/or propylene her 70 to 30 parts by weight …
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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 2, 1993 and granted August 14, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2015.
- 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.