Alkoxylation process
US4375564A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1981 |
| Grant date | Mar 1, 1983 |
| Priority date | — |
| Expiry date | Dec 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Alkanol alkoxylates having utility, for instance, as nonionic surfactants in detergent formulations are prepared by the reaction of C.sub.1 to C.sub.30 alkanols with C.sub.2 to C.sub.4 alkylene oxides in the presence of a catalytically effective amount of a co-catalyst combination comprising as a first component one or more soluble, basic compounds of magnesium and as a second component one or more soluble compounds of at least one element selected from the group consisting of aluminum, boron, zinc, titanium, silicon, molybdenum, vanadium, gallium, germanium, yttrium, zirconium, niobium, cadmium, indium, tin, antimony, tungsten, hafnium, tantalum, thallium, lead, and bismuth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.