国家/地区 中国（5）
IPC部 B（5）
IPC大类 B01（5）
IPC小类 B01J（5）
IPC C08G018/48（5）
发明人
公开年 2022（2）
申请年
专利权人

Preparing polyurethane, involves preparing polyol using e.g. polyether, polytetrahydrofuran ether, polyethylene glycol, compatibilizer polybranched polyester and foaming agent, then preparing isocyanate using diphenylmethane diisocyanate, and mixing polyol and isocyanate in mixing reaction kettle.

ZHAO W, LIANG Y, YAO H, YANG Z, LIU J, SHI J

Preparing graphene polyurethane composite sponge material useful in electronic cigarette filtration, comprises e.g. preparing modified graphene oxide dispersion, stirring with silicon-containing surfactant, stannous octoate, triethylenediamine, and toluene diisocyanate, carrying out free foaming.

HOU W, PAN D, ZHANG H, LIANG D, WANG Z

Preparing high-density conductive polyurethane foam, comprises e.g. adding ionic liquid 1,3-dimethylimidazole dimethyl phosphate salt and water into reactor, mixing, heating, then reacting with graphene, cooling and post-processing.

JIANG K

Preparation of graphene/titanium dioxide composite material involves preparing graphene oxide and nano-titanium dioxide, dispersing graphene oxide in ethanol, adding nano-titanium dioxide, reacting, removing solvent, and freeze-drying.

CHEN J, ZHOU X, TANG Z, LU J, DAI Y, GUO L

Preparation of graphene oxide-polyurethane foaming material for absorbing heavy metal ion from wastewater, involves preparing oxidized graphite alkene using Hummers method, adding polyether glycol, foam stabilizer and catalyst.

YANG D, QIU F, QIN J, RONG X