国家/地区 美国（2）
IPC部 B（2）
IPC大类 B01（2） C08（2）
IPC小类 B01D（2）
IPC C08K003/04（2）
发明人
公开年 2021（2）
申请年 2021（2）
专利权人

Filter used in device e.g. mask, breathing apparatus and face covering, vent cover and heating, ventilation, has polyurethane-based polymer foam comprising virucidal/bactericidal agent having cetylpyridinium chloride and/or dimethyloctadecyl(3-(trimethyloxysilyl)propyl)ammonium chloride.

RAMAPPA D A, JOGIKALMATH G

Increasing cellulose crystal size by providing mixture of solvent comprising ionic compound and composition comprising cellulose and coagulating mixture with composition comprising hydrogen peroxide and increasing cellulose crystal size.

VERRILL D, LOVE S, HU X, SALAS D L C D