Thermoplastic moulding compounds
CA 1255415 A · Owner: Bayer Aktiengesellschaft · Inventors: Morbitzer, Leo; Kohler, Karl-Heinz; Witman, Mark W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thermoplastic moulding compounds Thermoplastic moulding compounds obtained from: from 98 to 10 parts, by weight, of aromatic polycarbonates having an average molecular weight Mw (by light scattering) of from 10,000 to 200,000; from 60 to 0 parts by weight, of polyalkylene terephthalate; from 30 to 0 parts by weight, of graft polymer of one or more ethylenically unsaturated monomers on a rubber; and from 90 to 2 parts by weight, of, a polyester of terephthalic acid and a diol containing at least one diaryl sulphone group in the molecule and optionally, an aliphatic diol in addition. Le A 23 259
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
- Granted June 6, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 6, 2006.
- 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.