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US2776952A Improvements in the production of polymerization products using halogen compounds toincrease the effectiveness of sulfone polymerization catalysts 失效
使用卤素化合物改进聚合产物的生产,以提高砜聚合催化剂的有效性

Improvements in the production of polymerization products using halogen compounds toincrease the effectiveness of sulfone polymerization catalysts
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