国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B29（2）
IPC小类 B29D（2）
IPC C08K003/26（2）
发明人
公开年 2023（2）
申请年
专利权人

Laminated waterproof and antibacterial medical packaging material comprises polycarbonate, sodium polyacrylate, isomeric tristyryl polyoxypropylene ether polymer, benzenesulfonyl chloride, N, N'-dimethylmethylene acrylamide, polyvinyl chloride, cetyltrimethylammonium bromide and polyethylene glycol.

ZHU X, CHEN C

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z