国家/地区 中国（20） 美国（3） 世界知识产权组织（2）
IPC部 C（21）
IPC大类 C08（21）
IPC小类 C08G（21）
IPC C08G063/83（21）
发明人 YE L（15）
公开年 2016（16） 2021（2）
申请年 2016（17）  2021（3） 
专利权人 ANHUI GEOMAR.（15）

Esterification of purified terephthalic acid and 1,4-butanediol useful for producing polybutylene adipate terephthalate, comprises adding terephthalic acid, 1,4-butanediol and polymerization degree catalyst into a reaction kettle, introducing nitrogen, and reacting.

LIU G, LIU S, XU W, GUO T, HAN Y, ZHOU B, ZHENG L, LIU Y, HAO D, WANG X, CAO F, WANG C, WANG M, LI Z, LI J, ZHAO N, SHI C, SHI R

Preparing high-frequency transmission liquid crystal polymer film useful for e.g. electronics, comprises acetating monomers, crushing high-temperature polymerization of acetylated monomer and phenolic resin, mixing liquid crystal copolyester, cooling, slitting longitudinally and transversely.

XU L, YU R, ZHANG D

Recycling synthetic polymers by combining polymers with a solid depolymerizing catalyst in a vessel, mechanically shearing the combined polymers and solid depolymerizing catalyst to produce monomers from polymers, and collecting monomers.

SIEVERS C, TRICKER A W, NAIR S, JONES C, BOUKOUVALA F

Graphene reinforced polyethylene terephthalate (PET) composition, used to prepare composite materials e.g. for packaging applications, comprises continuous matrix comprising PET, and dispersed reinforcement phase of graphene nanoplatelets.

HANAN J C, SHABAFROOZ V, BANDLA S

Production of biomass graphene flame-retardant polyester fiber involves putting purified terephthalic acid, ethylene glycol, biomass graphene dispersion liquid, and flame retardant into slurry kettle and mixing slurry.

FENG Z, LIU P, LU Y, CHEN H, LI D, SHEN F, YANG W

Whisker-type geogrid comprises e.g. oxidized graphene, p-hydroxybenzoic acid, acetic anhydride, zinc acetate, 6-hydroxy-2-naphthoic acid, high-density polyethylene, hexafluoroacetylacetone and acetyl lanolin.

YE L

Graphene-reinforced geogrid contains barium metaborate, graphene oxide, para-hydroxybenzoic acid, acetic anhydride, zinc acetate, 6-hydroxy-2-naphthoic acid, high-density polyethylene, isopropyl palmitate, and nickel sulfamate.

YE L

Hard geogrid comprises e.g. benzyltriphenylphosphonium chloride, epoxidized cottonseed butyl oleate, graphene oxide, p-hydroxybenzoic acid, acetic anhydride, zinc acetate, hydroxystearic acid and 8-hydroxyquinoline copper.

YE L

Silane-modified geogrid comprises polytetrahydrofuran ether diol, hexafluoroacetylacetone, oxidized graphene, para-hydroxybenzoic acid, acetic anhydride, zinc acetate, 6-hydroxy-2-naphthoic acid, and high-density polyethylene.

YE L

Oxidation-resistant geogrid contains graphene oxide, para-hydroxybenzoic acid, acetic anhydride, zinc acetate, 6-hydroxy-2-naphthoic acid, high-density polyethylene, 2-bromo-4-methylphenol, N,N-diethylaniline, and diacetone alcohol.

YE L