国家/地区 中国（3）
IPC部 B（3）
IPC大类 B32（3）
IPC小类 B32B（3）
IPC B32B009/00（3）
发明人
公开年 2023（3）
申请年 2022（3） 
专利权人

Film useful for preventing bird collision, comprises optical film sequentially comprising first protective layer, first reflective layer, first base material layer, polymer dispersed liquid crystal layer, second base material layer, second reflective layer and second protective layer.

NIE Y, LI W, YE X, XU Z, XUE Y, DU P, KONG Q

Photovoltaic backboard used in photovoltaic module, comprises weather-resistant layer, base material layer, black reflecting layer comprising organic pigment, and barrier layer comprising high barrier composition containing polymer resin, nano material and additive.

ZHOU G, LIN W, LI N

Preparing foam with gradient pore structure used in preparing heat-insulating and anti-icing material, involves mixing foaming agent, curing agent and water, under uniform stirring, and curing under vacuum condition, where foaming agent is polyurethane foaming agent.

YUAN X, SHENG L, ZHAN F