国家/地区 印度（3）
IPC部 B（3）
IPC大类 B32（3）
IPC小类 B32B（3）
IPC B32B029/00（2）
发明人
公开年 2021（3）
申请年 2020（2） 
专利权人

Multi-layered mask is useful for e.g. protecting against the aerosol transmission of COVID-19 comprises five layers characterized that first and last layers are made of e.g. cotton textile layers, natural fiber layers, and nanofibers layer.

SHIREESHA G, KARBARI S R, UTTARA K M, SUBRAMANYA K

Aqueous adhesive for manufacture of laminated cellulosic board, comprises water, starch, polymer, glue enhancer, and stabilizing agents, gelling agents, thickener, antifoaming agents, tackifier and/or damp-proofing resins.

ZURUTUZA ELORZA A, ORTEGA MURGUIALDAY A, ALONSO RODRIGUEZ B, ZURUTUZA E A, ORTEGA M A, ALONSO R B, ZURUTUSA E A, ORTEGAMURGIALDEI A, ELORZA A Z, MURGUIALDAY A O, RODRIGUEZ B A

Packaging material for forming individual liquid food packaging containers, comprises one or more layers of heat sealable material laminated to core, and carbon-based layer(s) provided to form workpiece of associated sealing system.

BETTI BENEVENTI G, BIERLEIN P, GUIDETTI G, WAMSLER M, HURDALEK L, BETTI B G, BENEVENTI G B