Inverting surfactants for inverse emulsions
US12018211B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jun 9, 2020 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Aug 9, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Water-in-oil emulsions are provided that include an alkyl propylene diamine and an ethoxylated alcohol as the inverting surfactant, which is present in an amount less than 5 percent by weight of the water-in-oil emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.