发明授权
US4960855A Polyarylene ether containing benzoxazole groups and a process for their preparation 失效
含聚苯醚的苯并恶唑基及其制备方法

Polyarylene ether containing benzoxazole groups and a process for their
preparation
摘要:
This invention relates to polyarylene ethers containing benzoxazole groups and to a process for their preparation.
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