Flame-resistant polyester moulding materials with polyolefin additives
CA 2451470 A1 · Owner: Wagner, Michael · Inventors: Bienmueller, Matthias; Wagner, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to flame-resistant preferably halogen-free, thermoplastic moulding materials comprising one or several polyesters, a combination of flame-proofing agents consisting of a compound containing phosphorous, a compound containing nitrogen and a polyolefin compound which , is used on its own or together with zinc sulphide. The invention also relates to the use of said moulding materials in the production of moulded bodies films or fibres, in addition to said moulded bodies films or fibres.
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 June 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2024.
- 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.