Patent ID: 11891458
Assignee: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 5:
6. The method of claim 1, wherein the solubilizer is triethanolamine, the first cross-linking agent and the second cross-linking agent are epoxy chloropropane, and amounts of water, the starch, the triethanolamine, the epoxy chloropropane, the zwitterionic surfactant and the solution of inorganic salt are, in parts by weight: 100 parts of water, 1-20 parts of starch, 10-50 parts of triethanolamine, 0.105-14.6 parts of epoxy chloropropane, 0.05-10 parts of zwitterionic surfactant and 0.5-200 parts of solution of inorganic salt, wherein the inorganic salt solute accounts for 0.025-50 parts.