Process for preparing nonionic surfactants-oxyalkylation with ca

Details Process for preparing nonionic surfactants-oxyalkylation with ca Process for preparing nonionic surfactants-oxyalkylation with ca

1982-04-21

1984-06-05

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568619, 568620, 568623, 568624, 568625, 568622, C07C 4103

Patent

active

044530226

ABSTRACT:
The process for preparing nonionic surfactants wherein a narrower molecular weight distribution is obtained by the use of a calcium and/or strontium catalyst which comprises reacting a reactive hydrogen compound selected from the group consisting of monohydric alcohols having from about 8 to about 20 carbon atoms and a difunctional polypropylene oxide polymer having an average molecular weight in the range of 1000 to 5000 with an alkylene oxide having 2 to 4 carbon atoms at a temperature at which the reaction proceeds in the presence of at least a catalytic amount of a basic salt of calcium and/or strontium selected from the group consisting of hydroxide, alkoxide and phenoxides and a catalytic amount of an oxyalkylation catalyst promoter.

REFERENCES:
patent: 3100750 (1963-08-01), Bailey et al.
patent: 3328306 (1967-06-01), Ellis
patent: 4210764 (1980-07-01), Yang et al.
patent: 4223164 (1980-09-01), Yang et al.
patent: 4302613 (1981-11-01), Yang et al.

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