Number | Date | Country | Kind |
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3-106411 | Apr 1991 | JPX |
Number | Date | Country |
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1298822 | Dec 1972 | GBX |
Entry |
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Poly(arylene ether sulphones) by polyetherification: 1. Synthesis of halogenophenols* by T. E. Attwood, et al., Polymer, vol. 18, Apr., 1977; pp. 354-358. |