国家/地区 中国（2）
IPC部 B（2）
IPC大类 B29（2）
IPC小类 B29D（2）
IPC C08K003/04（2）
发明人 ZHANG S（2）
公开年 2023（2）
申请年 2022（2） 
专利权人

Double-wall corrugated pipe material outer wall and inner wall, where outer wall comprises e.g. chlorinated polyvinyl chloride resin, grafted polyethylene solubilizer, light shielding agent, ultraviolet light absorber, strengthening agent graphene, lubricant, and nano calcium carbonate.

LUO Q, YE C, ZHENG S, CHEN G, ZHANG S

Coating-free biaxially stretched polyester window film comprises outer surface layer made of organosilicon-modified polyester masterbatch, organic fluorine-modified polyester masterbatch, core layer made of polyester ultraviolet barrier masterbatch and polyester water-oxygen barrier masterbatch.

SHI L, DING D, HUANG J, SUN S, ZHANG S, WANG H