国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B32（2）
IPC小类 B32B（2）
IPC B32B009/00（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

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