Patents Assigned to Pulcra S.A.
  • Compositions based on APG and ester quat surfactants
    Patent number: 6043203
    Abstract: Detergent compositions comprised of an alkyl polyglycoside and an ester quat corresponding to formula (II) ##STR1## wherein R.sup.2 CO is an aliphatic acyl radical containing 12 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, n=2 or 3 and X stands for halide, methosulfate or methophosphate ion are provided which are useful for the production of surface-active agents and for the enhanced recovery of crude oil.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: March 28, 2000
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Pulcra S.A., Henkel Corporation
    Inventors: Allen D. Urfer, Oriol Ponsati Obiols, Nuria Bonastre
  • Composition for enhanced crude oil recovery operations containing hydrochloric acid or hydrofluoric acid, or mixtures thereof with ester quaternary ammonium compounds or/and alkyl quaternary ammonium compounds
    Patent number: 5627144
    Abstract: Detergent compositions comprised of an alkyl polyglycoside and an ester quat corresponding to formula (II) ##STR1## wherein R.sup.2 CO is an aliphatic acyl radical containing 12 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, n=2 or 3 and X stands for halide, methosulfate or methophosphate ion are provided which are useful for the production of surface-active agents and for the enhanced recovery of crude oil.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 6, 1997
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Pulcra S.A., Henkel Corporation
    Inventors: Allen D. Urfer, Oriol P. Obiols, Nuria Bonastre