国家/地区 中国（6） 世界知识产权组织（2）
IPC部 B（6） C（4）
IPC大类 B29（6） B32（6） C08（4）
IPC小类 B29D（6）
IPC B32B027/18（6）
发明人
公开年 2021（4） 2022（2）
申请年 2021（6）
专利权人

Degradable high-barrier composite film useful in packaging field of liquid and fresh food comprises layer structure with layer A having e.g. thermoplastic starch, compatibilizer, tackifier and auxiliary materials, layer B having paper or cellulose film and layer C including e.g. reinforcing filler.

TANG L, HUANG R, HE X

Dry composite paper plastic zipper packaging bag comprises bag body and zipper provided on bag body, and bag body made of composite film, composite film sequentially includes e.g. biaxially oriented polypropylene layer, first adhesive layer, kraft paper layer, second adhesive layer.

HUANG Y

Preparing piezoelectric film useful in e.g. pressure-sensitive film sensor comprises dispersing conductive nanoparticles, elastic polymer in solvent, heating into molten state, extruding according to blow molding process, pressing ring-shaped film material into film and carrying out roll pressing.

GAO J, KUANG Z

High-strength polyurethane composite fabric useful for inflating, comprises polyurethane layers, adhesive layers, and base material layer, which are sequentially laminated from top to bottom.

HE J

Cast polypropylene film useful for aluminum plastic film, comprises first layer including e.g. toughening agent and adhesion promoter, second layer including copolymerized polypropylene, and third layer including e.g. adhesion promoter.

XIAO Z

Co-extrusion type antibacterial function non-primed matting film comprises film body, where film body comprises antibacterial agent layer, matting layer, antistatic layer, support layer, adhesive layer and anti-blocking agent layer.

YANG D