Patent ID: 11952530
Assignee: DRILLING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 15:
16. The process according to claim 15, wherein the reaction in step 1) is conducted at a temperature of 95 to 155° C. for 1 to 3 hours, and/or the reaction in step 2) is conducted at a temperature of 40 to 80° C. for 1 to 3 hours, and/or the weight ratio of the etherifying agent, the saccharide or glycoside and the catalyst is 24:(70-100):(10-30), and/or the weight ratio of the etherifying agent, the carboxyethylene monomer, the arylethylene monomer, the acrylamide monomer, the sulfoethylene monomer, the siloxyethylene monomer, and the initiator is 24:(20-40):(20-40):(20-40):(10-20):(10-20):(0.6-1.8.