Ethoxylation with strontium bases
US4223164A · kind A · utility
32Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/568
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Basic compounds of strontium catalyzed the ethoxylation of alcohols in the presence of phenol or alkylphenol co-catalyst. Strontium-produced ethoxylates have sharper ethylene oxide distributions, lower free alcohol, lower pour points, and better detergency than the ethoxylates obtained from alkali base catalysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.