The Compound Contains -c(=o)nhh Where Substitution May Be Made For The Hydrogen Patents (Class 516/165)
  • Demulsifying and dehydrating formulations for heavy crude oils based on block copolymers bifunctionalized with amines
    Patent number: 9518231
    Abstract: The present invention relates to demulsifying and dehydrating formulations of heavy crude oil based block copolymers amine bifunctionalized with low polydispersities. These formulations can contain solvents whose boiling point is in the range from 35 to 200° C., preferably: dichloromethane, chloroform, toluene, xylenes, turbosine, naphtha or mixtures thereof.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 13, 2016
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Gabriel Cendejas Santana, Eugenio Alejandro Flores Oropeza, Laura Veronica Castro Sotelo, Aristeo Estrada Buendia, Marcelo Lozada y Cassou, Flavio Salvador Vazquez Moreno
  • Arthropod repellents
    Patent number: 4466967
    Abstract: This invention relates to compounds and methods of using said compounds of the formula ##STR1## wherein R.sup.1 is hydrogen, alkyl, alkenyl or alkoxycarbonylalkyl; Y is O or S; m is an integer of 1 to 3 and n is an integer of 0 to 1 which compounds are insect repellents.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: August 21, 1984
    Assignee: Rohm and Haas Company
    Inventor: Joel R. Smolanoff