Tetra(bicycloheptyl) transition metal compounds
CA 1104576 A · Owner: Hercules Incorporated · Inventors: Bower, Barton K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bower Case 4, TETRA (BICYCLOHEPTYL) TRANSITION METAL COMPOUNDS, Abstract of the Disclosure The compounds of this invention are tetravalent organometallic compounds of transition metals wherein the metal is attached to the bridgehead carbons of four bicyclic radicals namely, 1-bicyclo-, 2.2.1-heptyl radicals which contain an alkylidene group attached to either the C2 or C7 carbon atom. Typical of these compounds is tetrakis-(1-camphenyl) chromium. These organometallic compounds are particularly effective catalysts for the curing of photochemical compositions. - 1 -
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 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.