国家/地区 印度（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01J020/28（2）
发明人
公开年
申请年
专利权人

Making polymeric metal carbon-based filter or adsorbent material by e.g. treating polyurethane foam with nitric acid, dissolving copper sulfate in deionized water, adding ammonia solution and dipping treated polyurethane foam in suspension.

SASIDHARAN V, CHAUHAN D, TALREJA N, ASHFAQ M

Graphite filter tipped cigarette comprises a filter with fibers segment and tobacco where a graphene adsorption section has wrapping paper composition and is coated with graphene, which is chemically bonded to filter fibers.

WANG G, TANG Y, ZHANG J, ZHANG A, LIU D