Patents Examined by Bernard Dent
  • Fluoroaliphaticsulfonyl substituted ethylenes substituted by furyl, thenyl, or 1H-pyrrolyl groups
    Patent number: 4069233
    Abstract: Fluoroaliphaticsulfonyl substituted ethylenes, useful as catalysts in polymerization of monomers, e.g., epoxide, vinyl ether, and N-vinyl monomers, are prepared by condensation of precursor fluoroaliphaticsulfonyl methanes with aldehydes or N-formyl compounds.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: January 17, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Robert J. Koshar