Drag reduction agent utilizing water soluble interpolymer complexes
US4489180A · kind A · utility
17Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Dec 12, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/919
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses a class of water soluble complex polymers of relatively low molecular weight, which have been found to be improved drag reducing agents. These complex polymers are a mixture of a cationic copolymer having a water soluble polymer backbone and an anionic copolymer having a water soluble polymer backbone. The solutions of these complex polymers are improved drag reducing agents for aqueous systems at low concentrations (i.e., 10 to 500 ppm) relative to individual solutions of the copolymers which make upon the polymer complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.