It has the advantages of high softening point, high acid value, good capability of anti-oxidation and high mucosity. Polymerized rosin is good used in high-grade printing ink, adhesives and dope, etc.
聚合松香是松香深加工产品中的一个重要品种，具有软化点高、酸值高、抗氧化性好、粘度大等优点，广泛应用于高级油墨、粘胶剂及涂料等行业。
The present invention relates to polybenzazaole (PBZ) fibers and processes for removing polyphosphoric acid from a polybenzazole dope filament.
本发明涉及聚吲哚（PBZ）纤维和从聚吲哚纺液长丝去除多磷酸的方法。
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