ODPA also named oxydiphthalic anhydride or?odpa anhydride,?is a solid, melts in the range of 225-229 °C,?offering a greater degree of flexibility than other commercial dianhydrides. It also is somewhat less reactive than BTDA.? ODPA has largely been used in polyimides and much less so in epoxies.
Hebei Haili fragrances Co., Ltd. was established in December 2003, covering an area of 26700m2, with a registered capital of 40.2 million, 281 employees and a sales volume of 198 million in 2019.
The company specializes in the development, production and sales of chemical APIs, spices, polyimide monomers.
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