国家/地区 中国（2）
IPC部 C（2）
IPC大类 C09（2）
IPC小类 C09D（2）
IPC C09D133/02（2）
发明人 LI H（2）
公开年
申请年
专利权人

Preparing long-chain polymer glue used improve thread connection performance of oil pipe, comprises adding polyacrylic acid and catechol to deionized water, adding boric acid solution, adjusting pH with sodium hydroxide solution under nitrogen protection, and mechanically stirring.

FAN H, LI S, LI H, FANG X, TUO C, LIU Z, GAO Z, ZHANG Y, NAN B, WANG J

Composite material with water vapor barrier function comprises silicone rubber substrate layer surface provided with decorative layer, modified layer surface provided with pit provided with hydrophilic polymer particles comprising e.g. polyacrylic acid and polyvinyl alcohol.

SHANG Y, LU S, CHEN G, LI H, YANG X, ZENG W, MEI J, ZHAN H, PAN J, HE Z