| US 7,592,379 B2 | ||
| Oil-based dispersing method of drag reduction polymers | ||
| Bing Liu, Beijing (China); Xuchen Bao, Beijing (China); Yanqing Gao, Beijing (China); Chunman Li, Beijing (China); and Guoping Li, Beijing (China) | ||
| Assigned to PetroChina Company Limited, Beijing (China) | ||
| Filed on Jun. 30, 2006, as Appl. No. 11/479,868. | ||
| Claims priority of application No. 2005 1 0080245 (CN), filed on Jul. 01, 2005. | ||
| Prior Publication US 2007/0004837 A1, Jan. 04, 2007 | ||
| Int. Cl. B05D 5/08 (2006.01); C08L 25/08 (2006.01); C08L 91/00 (2006.01); C08K 3/26 (2006.01) | ||
| U.S. Cl. 523—175 [524/578; 524/313; 524/425] | 12 Claims |
| 1. An oil-based suspension-dispersion system of drag reduction polymers, comprising:
50-90 wt % of vegetable oil,
0.001-0.1 wt % of ultraviolet absorber,
0.001-0.1 wt % of bactericide,
5-40% of α-olefin-styrene polymer based drag reduction polymer, and
2-25 wt % of activated calcium carbonate;
based on total weight of the suspension-dispersion system.
|