Inhibition of viscosity increase and fouling in hydrocarbon streams including unsaturation
US6926820B2 · kind B2 · utility
13Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Jun 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/95
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of inhibiting fouling and viscosity increase in hydrocarbon streams including ethylenically unsaturated monomers is disclosed. The method includes the step of adding to the hydrocarbon stream an effective amount of one or more quinone methides of the formula: wherein R1, R2, and R3 are independently selected from the group consisting of H, —OH, —SH, —NH2, alkyl, cycloalkyl, heterocyclo, and aryl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.