Hexakis (2-pyridylthio)-tetrazinc monooxide
CA 1047037 A · Owner: Ube Industries Ltd. · Inventors: Yoshikawa, Toshio; Masaki, Mitsuo; Sakamoto, Nagayoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hexakis(2-pyridylthio)tetrazinc monooxide having the formula:, is obtained by reacting bis(2-pyridylthio)zinc with water or with zinc oxide or zinc hydroxide, or by reacting 2-pyridinethiol with zinc oxide or zinc hydroxide or with a zinc salt in the presence of water or a base. The 2-pyridylthiozinc-oxide complex obtained is useful as an anti-deteriorating agent for polyolefins which are subjected to thermal and oxidative deterioration and is, particularly useful against deterioration caused by contact with heavy metals.
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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
- 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.