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    • 6. 发明授权
    • Heat-resistant hydroxy-functional polyethers as thermoplastic barrier
resins
    • 耐热羟基官能聚醚作为热塑性阻隔树脂
    • US6051294A
    • 2000-04-18
    • US21058
    • 1998-02-09
    • Jerry E. WhiteH. Craig SilvisStephen E. BalesMichael N. MangMuthiah N. Inbasekaran
    • Jerry E. WhiteH. Craig SilvisStephen E. BalesMichael N. MangMuthiah N. Inbasekaran
    • C08L71/00B65B55/00
    • C08L71/00Y10T428/1352
    • Hydroxy-functional polyethers having a "cardo" diphenylene group in their backbones are prepared by contacting at least one dinucleophilic monomer with at least one dtglycidyl ether of a cardo bisphenol, such as bis(hydroxyphenyl)fluorene, phenolphthalein, or phenolphthalimidine or a substituted cardo bisphenol, such as a substituted bis(hydroxyphenyl)fluorene, a substituted phenolphthalein or a substituted phenolphthalimidine, under conditions sufficient to cause the nucleophillo moieties of the dinucleophilic monomer to react with epoxy moieties to form a polymer backbone containing pendant hydroxy moieties and ether, imino, amino, sulfonamido or ester linkages. These polyethers possess a combination of high barrier to oxygen transmission (i.e., oxygen transmission rate less than 10.0 cm.sup.3 -mil/100 in.sup.2 -atm-day to oxygen) and high heat resistance (i.e., Tg above 120.degree. C.). These polyethers are suitable for use in the manufacture of retort-sterilizable packaging materials exhibiting high barrier to oxygen.
    • 在其主链中具有“cardo”二亚苯基的羟基官能的聚醚通过使至少一种双亲性单体与双酚(如双(羟基苯基)芴,酚酞或苯酚苯并咪唑或取代的cardo双酚的至少一种dt缩水甘油醚 双酚,例如取代的双(羟基苯基)芴,取代的酚酞或取代的苯酚苯酞,在足以使双亲单体的亲核部分与环氧部分反应形成含有侧羟基部分和醚的聚合物主链的条件下,亚氨基 ,氨基,亚磺酰氨基或酯键。 这些聚醚具有高的透氧阻隔性(氧气透过率低于氧气的氧气渗透速度小于10.0立方厘米/ 100英寸/天)和高耐热性(即高于120℃的Tg)。 这些聚醚适用于制造显示出高阻隔氧的蒸煮灭菌包装材料。