Hardenable composition and its use
CA 1293835 C · Owner: Zweifel, Hans · Inventors: Zweifel, Hans; Meier, Kurt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hardenable composition and its use A hardenable composition containing:, a) a material polymerizable by free radical or cationic polymerization, b) at least one iron compound of the formula 1 (R1)(R2FeII)a+a ? (LQm)-q (I), wherein a is 1 or 2 and q is 1, 2 or 3, L is a divalent to heptavalent metal or non-metal Q is a halogen atom, m is an integer corresponding to the sum of the values of L and q, R1 is an unsubstituted or substituted ?6-benzene and R2 is an unsubstituted or substituted cyclopentadienyl anion and, c) at least one sensitizer for the compound of the formula I, and, in the case of materials polymerizable by free radical polymerization, also d) an electron acceptor as an …
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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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
- 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.