国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B29（2）
IPC小类 C09D（2）
IPC C09D007/61（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparing heat-conducting coating of main cooling roller by grinding epoxy resin, bentonite, zinc powder and solvent, adding graphene, carbon nano tubes and concentrated sulfuric acid, reacting, adding carbon nanohorns, and preparing into primer and finish paint using curing agent and diluent.

QIN Z, BAI R, HUANG W, CHEN C, YANG D, ZHANG C

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z