国家/地区 中国（3）
IPC部 B（3） C（2）
IPC大类 B29（3） C08（2）
IPC小类 B29B（3）
IPC B29C048/92（3）
发明人
公开年 2023（3）
申请年 2022（3） 
专利权人

Preparing electromagnetic shielding composite material comprises drying L-polylactic acid, stereo polylactic acid, polystyrene, carbon-based fillers or metal fillers, melt blending and extruding, pelletizing, crushing and sieving.

ZHONG M, YANG J, CHEN F, KUANG T, FENG H, LIU T

Preparation device of graphene modified poly(butylene adipate-co-terephthalate, comprises base whose upper end is provided with multiple first supports, first feeding hopper connected to upper end of mixing box and second feeding hopper connected to upper end of pre-processing box.

LIU Q, WANG X

Nitrogen-based flame-retardant nylon material useful for forming high-end circuit breaker shell, comprises polyamide, methylcellulose copolymer, heat stabilizer, lubricant, reinforcing component, black powder, auxiliary toner and laser marking synergist.

ZHANG L, ZHENG J, ZHOU H, WANG J, ZHENG Y, TIAN J