The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2016
Filed:
Sep. 16, 2011
Jinben Wang, Beijing, CN;
Xuefeng Shi, Beijing, CN;
Xiaohui Xu, Beijing, CN;
Hui Yang, Beijing, CN;
Yilin Wang, Beijing, CN;
Haike Yan, Beijing, CN;
Jinben Wang, Beijing, CN;
Xuefeng Shi, Beijing, CN;
Xiaohui Xu, Beijing, CN;
Hui Yang, Beijing, CN;
Yilin Wang, Beijing, CN;
Haike Yan, Beijing, CN;
Abstract
Amphiphilic macromolecules having structural units to adjust molecular weight and molecular weight distribution and charging property effects, high stereo-hindrance structural units, and amphiphilic structural units, are suitable for fields such as oil field well drilling, well cementation fracturing, oil gathering and transfer, sewage treatment, sludge treatment and papermaking, etc., and can be used as an oil-displacing agent for enhanced oil production, a heavy oil viscosity reducer, a fracturing fluid, a clay stabilizing agent, a sewage treatment agent, a papermaking retention and drainage aid or a reinforcing agent, etc.