Alkylene oxide-capped secondary alcohol alkoxylates useful as surfactants
US8334323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2008 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Mar 21, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are compositions of the formula wherein R1 and R2 are each independently hydrogen or a linear or branched alkyl group containing from (1) to about (18) carbon atoms, provided that R1 and R2 together contain from about (8) to about (18) carbon atoms, and further provided that less than about 10 mole percent of R1 or R2 is hydrogen; R3 is hydrogen or an alkyl radical containing from (1) to about (6) carbon atoms; R4 and R5 are each independently hydrogen or an alkyl radical containing from (2) to about (6) carbon atoms, provided that R4 and R5 together contain from (2) to about (6) carbon atoms; m is an average value ranging from (0) to about (10), and n is an average value ranging from about (3) to (about 40), provided that the group containing m and the group containing n may be exchanged with one another as to position; and z is an average value ranging from about (0.5) to about (5). These compositions are conveniently prepared by a process including at least two steps and are useful as surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.