国家/地区 中国（2）
IPC部 A（2）
IPC大类 A61（2）
IPC小类 A61F（2）
IPC A61F006/04（2）
发明人
公开年 2017（2）
申请年 2017（2） 
专利权人

Preparing compact graphene condom comprises e.g. preparing silicon columnar round-head mold of built-in with spiral carbon fiber heat source in the sealed space and polyurethane outer layer.

WANG J

Preparing polyurethane emulsion for graphene aqueous polyurethane safety sleeve, involves putting dihydric alcohol into reaction kettle, stirring and heating, and performing vacuum dehydration on dihydric alcohol.

DAI J, GUO W, LI W, WANG W