Biaxially oriented film
CA 2103840 A1 · Owner: Aoyama, Masatoshi · Inventors: Okazaki, Iwao; Abe, Koichi; Suzuki, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a biaxially oriented film and a laminated film containing specified organic particles at a content of 0.001 to 20% by weight. The strength when deformed by 10% (S10) of the organic particles is in the range of 3 to 30 kgf/mm2, the thermal decomposition temperature for causing 10% loss in weight thereof is not lower than 350 °C . The weight average diameter thereof is in the range of 0.005 to 5 µ m. Since the organic particles have a good affinity with the matrix resin of the film and a good thermal resistance and the hardness of the particles is appropriate desired protrusions hardly chipped and having an appropriate hardness for hardly scratching a magneticsurface can be …
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 August 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.