Drag reducing copolymers for cold fluid applications
US8916626B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
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Key dates
| Filing date | Jul 31, 2008 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jun 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Drag reducing compositions comprising polymer particles, where the polymer particles include copolymers comprising the residues of at least one methacrylate monomer and at least one comonomer having a polymerizable vinyl group, where the comonomer has no more than one pendant substituent per vinyl carbon. The drag reducing compositions can have improved dissolution rates in hydrocarbon-containing fluids. The drag reducing compositions can be added to a hydrocarbon-containing fluid to decrease the pressure drop associated with the turbulent flow of the hydrocarbon-containing fluid through a conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.