国家/地区 中国（3）
IPC部 C（3）
IPC大类 C04（3）
IPC小类 C04B（3）
IPC C04B111/28（3）
发明人
公开年 2018（2）
申请年 2018（2） 
专利权人

Fireproof door comprises panel, another panel, door core, magnesium oxide, magnesium sulfate, graphene, glass fiber, silicon micropowder, alumina, phosphoric acid and water.

JIANG C

Fire-proof door useful as fire-proof sealing, heat insulating and sound insulating materials, comprises e.g. magnesium sulfate, graphene, magnesium oxide, aluminum borate, wood material, polymethyl methacrylate and methylcellulose.

HOU W

Fireproof door includes door core comprising magnesium oxide, magnesium sulfate, graphene, fiberglass, silica powder, alumina, phosphoric acid, and water.

ZHENG R