Flame-retardant resin composition and insulated electrical wire employing the same
CA 2050874 C · Owner: Hayami, Hiroshi · Inventors: Hayami, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flame-retardant resin composition obtained by irradiating with ionizing radiation a resin composition comprising 100 parts by weight of a thermoplastic resin from, 100 to 250 parts by weight of magnesium hydroxide and from 1, to 10 parts by weight of an organosilicon compound represented by formula (I):, (see fig. I) wherein R represents an alkyl group containing a methacrylic or acrylic group and Y1, Y2, and Y3 each represents a group selected from the group consisting of an alkyl group an, alkoxyl group, and a halogen group; and an insulated electrical wire obtained by coating the above flame-retardant resin composition on a conductor followed by irradiation.
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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 6, 1991 and granted October 28, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2013.
- 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.