Alkyl sulphonic acid phenyl esters substituted by carboxylic acid esters
CA 1072575 A · Owner: Bayer Aktiengesellschaft · Inventors: Brudermanns, Karola; Hinz, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Alkyl sulphonic acid phenyl esters which are substituted by carboxylic acid esters can be obtained by reacting sulphochlorinated paraffins with hydroxy benzoic acid esters. Said compounds can be used as plasticisers for polymers. Accordingly, the present invention provides alkyl sulphonic acid esters corresponding to the general formula (I) in which R1 represents a straight chain or branched chain paraffin radical with 10 to 18 carbon atoms, and R2 represents a straight chain or branched chain alkyl group with 1 to 12 carbon atoms.
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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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
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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.