4,4'-Oxydibenzoic acid  (4,4'-Dicarboxydiphenyl Ether)

Synonyms:4,4'-Oxy-bis-benzoic acid, 4,4'-oxybis(benzoic acid), 4,4'-diphenyl ether dicarboxylic acid and OBBA

CAS Number: 2215-89-6

Molecular Formula:C14H10O5
Molecular Weight:258



Appearance: light yellow powder
Purity:99% min (HPLC)
Melting Point: 330'C

Package:25kg drum

4,4'-Oxydibenzoic acid  (4,4'-Dicarboxydiphenyl Ether) as modification of resins, e.g. modified PET copolymer has higher thermal oxidation resistance and better flexibility. Thick films are used as channel insulation or phase insulation. Besides, the modified films are also used as thermal resistant packing materials, cinema films, video and audio laps. 4,4'-diphenyl ether dicarboxylic acid(OBBA )is also used as an ingredient in the manufacture of liquid crystal( TLCP) or as an additive to reduce the melt viscosity improve the possibility, enhance the impact tenacity and thermal resistance.

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