发明授权
US3703564A Bis(polyphenylene oxide)-ester block copolymers 失效
BIS(聚氧乙烯氧化物) - 嵌段共聚物

Bis(polyphenylene oxide)-ester block copolymers
摘要:
THE INVENTION RELATES TO BLOCK COPOLYMERS OF THE A-B-A TYPE WHERE EACH A IS THE PHENOXY RESIDUE OF A POLY(2,6-DISUBSTITUTED-1,4-PHENYLENE OXIDE) HAVING ONE TERMINAL HYDROXYL PER POLYMER MOLECULE AND B IS THE RESIDUE OF A COMPOUND HAVING TWO GROUPS WHICH ARE REACTIVE WITH THE HYDROXYL GROUP OF SAID POLY (PHENYLENE OXIDE). THESE COMPOSITIONS ARE USEFUL IN PRODUCING MOLDED ARTICLES, FILMS, FIBERS, ETC., HAVING MODIFIED PROPERTIES COMPARED TO THE PARENT POLY (PHENYLENE OXIDES).
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