国家/地区 中国（2）
IPC部 B（2）
IPC大类 B32（2） D01（2）
IPC小类 B32B（2）
IPC B32B037/10（2）
发明人
公开年 2021（2）
申请年
专利权人

Preparing composite geotextile by arranging nonwoven fabric made of polypropylene, glass fiber and calcium sulfate whiskers on lower and upper layers, arranging woven gray cloth made of polyester fiber in middle layer, and laminating.

CHENG X

Preparing graphene dust-removing cloth comprises e.g. preparing spinning solution, spraying to obtain modified graphene fiber intermediate layer; obtaining interlayer stock solution, and spraying to obtain intermediate interlayer.

LI X, ZHANG D, WEI Y, DAI J