Oil soluble sulfonated polyols and a process for producing esters of unsaturated c.sub.4-c in10 xx dicarboxylic acid materials with said sulfonated polyols
CA 1137101 A · Owner: Exxon Research And Engineering Company · Inventors: Varma, Vijaya K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oil-soluble sulfonated polyols and oil-soluble partially sul-, fonated polyol ester reaction products of C6-C10,000 hydrocarbon substituted C4-C10 dicarboxylic acid materials e.g. alkenyl succinic anhydride, have been readily produced under reaction conditions characterized by conducting said reaction in the presence of at least a sediment-reducing amount of a hydrocarbon soluble C12-C80 preferably a C24-C36, hydrocarbon, substituted sulfonic acid whereby sediment resulting from said reaction is markedly reduced to less than 1 vol. % and filtration of the reaction product is facilitated.
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.