Organo-tin compounds and their use as stabilizers
CA 1080733 A · Owner: Hoechst Aktiengesellschaft · Inventors: Pfahler, Gerhard; Huber, Hans; Ulm, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides novel organo-tin compounds of the formula, and their use as stabilizers for halogen containing polymers. As compared to the known tin stabilizers the tin compounds, of the invention have improved stabilizing properties at identical tin content.
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 July 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 1, 1997.
- 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.