Curing component, and the use thereof
CA 1328888 C · Owner: Hoechst Aktiengesellschaft · Inventors: Plum, Helmut; Brindopke, Gerhard; Kubillus, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Curing component and the use thereof, The invention relates to a curing component (A) containing active CH groups, which contains at least two groups of the formula (I), (I), or structural units of the formula (I') or (I") (I') , (I"), in which:, A denotes , or X and Y are identical or different and denote CO2R1, CN, NO2, CONH2, CONR1H or CONR1R1 where, the R1 radicals may be identical or different and represent a hydrocarbon radical, preferably an alkyl radical having 1 to 12 carbon atoms, which may also be interrupted by oxygen or an N-alkyl radical with, the proviso that only one of the two radicals X and Y may represent the NO2 group;, A' denotes or , X' and Y' are identical or …
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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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.