Bleach systems comprising bis- and tris (.mu.-oxo)dimanganese complex salts
CA 2194342 A1 · Owner: Beller, Matthias · Inventors: Reinhardt, Gerd; Beller, Matthias; Tafesh, Ahmed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bleach systems comprising bis- and tris(µ-oxo)dimanganese complex salts as catalyst, Bis- and tris(µ-oxo)dimanganese complex salts of the formula LMn(µ-O)a(µ-OAc)bMnLXAy, as catalysts for oxidizing organic compounds in which formula, Ac is a C2-C8-acyl group a is 1, 2 or 3, b is 0 if a is 2 or 3 or is 2 if a is 1 x denotes the number of positive charges and is 2 or 3 A is an anion, y is the equivalent amount of anion A required to compensate the positive charges, and, L is a ligand, preferably N,N'-bis(2-pyridylmethyl)-N-methylamine or N,N,N',N'-tetrakis(2-pyridylmethyl)-1,2-ethylenediamine are employed as catalysts in bleach systems for textile material.
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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
- Filed January 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2019.
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