国家/地区 中国（3）
IPC部 C（3）
IPC大类 C08（3）
IPC小类 C08F（3）
IPC C08F002/44（2） C08F220/56（2） C08F220/58（2）
C08F222/38（2） C08K003/04（2） C08K003/34（2）
C08K007/26（2）
发明人 LI S（3）
公开年 2023（3）
申请年 2023（2） 
专利权人 HUAWEI METAL.（2） SINOSTEEL MA.（2）

High-strength microgel granular material for rapid plugging of water leakage in engineering facilities, by placing pre-polymerized liquid comprising acrylamide, ammonium persulfate and graphene oxide in open-cover electric heating reactor for polymerization reaction, drying and grinding.

LI B, LI S, XU X, LI X, PEI D, HUA S

Preparing high-strength microgel particle useful for emergency and rapid plugging and stopping water e.g. in reservoir, comprises polymerizing pre-polymerized liquid made of e.g. acrylamide and 2-acrylamide-2-methylpropanesulfonic acid, drying prepared polymer hydrogel, grinding, and sieving.

WANG D, YAO J, LI S, XU X, LI X, PEI D, HUA S

Preparing powdery, drag reducing agent for drilling fluid, involves adding modified graphite powder and rubber powder to mixture of styrene, catalyst and crosslinking agent, polymerizing formed mixture with polymer, where weight ratio of styrene, graphite powder, rubber and polymer used, is preset.

LI Y, XIE L, ZHU G, XIA H, ZENG Y, QIN B, YE L, LUO C, LIU Y, ZHAO S, YANG J, LIU H, LI S