Inhibition of polymerization of unsaturated monomers
CA 2395620 A1 · Owner: Uniroyal Chemical Company, Inc. · Inventors: Eisenstein, Andrew J.; Benage, Brigitte
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one stable hindered nitroxyl compound having the structural formula (I) wherein R1 and R4 are independently selected from the group consisting of hydrogen, alkyl and heteroatom-substituted alkyl and , R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl; and X1 and X2 (1) are independently selected from the group consisting of halogen, cyano COOR7, -S-COR7, -OCOR7, (wherein , R7 is alkyl or aryl) amido, -S-C6H5, carbonyl, alkenyl, or alkyl of 1 to 15 …
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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 December 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 5, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.