Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1989-08-31
1990-10-02
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568 39, 568 45, 568608, 568620, 568622, 568678, 568679, 560263, 560265, 560200, 560240, 560 93, 560209, 560105, 560112, 564399, 564475, 564505, 2604106, 530217, 530232, L07L 4103
Patent
active
049609521
ABSTRACT:
Alkylene oxide adducts of organic compounds having active hydrogen atoms are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more compounds having active hydrogen atoms in the presence of a catalytically effective amount of one or more lanthanum compounds comprising silicate, metasilicate and mixtures thereof. The product alkoxylates are known to be useful, for instance, as nonionic surfactants, wetting and emulsifying agents, solvents, and chemical intermediates.
REFERENCES:
patent: 4528364 (1985-07-01), Prier
patent: 4658065 (1987-04-01), Aoshima et al.
patent: 4665236 (1987-05-01), Edwards
Y. Zhang, "Ring Opening Polymerization of Ethylene Oxide by the Y(P.sub.204).sub.3 --Al(i--Bu).sub.3 --H.sub.2 O Catalyst", Inorganica Chemica Acta, 155 (1989), 263-265.
Mars Howard T.
McCollough Pamela J.
Shell Oil Company
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