国家/地区
IPC部 A（2）
IPC大类 B01（2）
IPC小类 C01B（2）
IPC C01B032/194（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Face mask for use as personal protective equipment, comprises layer comprising surface-functionalized graphene particles having specified sulfur impurity level, manganese level, and/or nitrogen oxide level.

PROMNIMIT A

Preparing perfume volatile medium graphite core rod useful in the field of perfume volatile materials, comprises e.g. placing N-methyl-2-pyrrolidone in glass reactor, adding eugenol, reacting graphene oxide dispersion liquid and polyamic acid solution, heating the composite sponge and drying.

LOU L