N-alkyl-benzenesulphonamides
CA 1295339 C · Owner: Bayer Aktiengesellschaft · Inventors: Schossler, Willi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-Alkyl-benzenesulphonamides, A b s t r a c t N-Alkyl-benzenesulphonamides the alkyl group of which is open-chain C1-C12-alkyl or C5-C7-cycloalkyl and the benzene nucleus of which can be substituted by C1-C4alkyl can be heat-stabilized by 10 - 1 000 ppm of one or more 2-mercapto-benzimidazole compounds of the formula (I), wherein, R1 denotes hydrogen or a C1-C4-alkyl group and X1 denotes hydrogen or 1 equivalent of the metals Zn Cd or Mn(II). Such stabilized N-alkyl-benzenesulphonamides can be used as plasticizers for polymers having polar groups.
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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.