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    • 2. 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。
    • 10. 发明授权
    • Tetrabromo bisphenol based polyestercarbonate membranes and method of
using
    • 四溴双酚基聚碳酸酯膜及其使用方法
    • US4840646A
    • 1989-06-20
    • US221483
    • 1988-07-19
    • Joginder N. AnandStephen E. BalesDarrell C. FeayThomas O. Jeanes
    • Joginder N. AnandStephen E. BalesDarrell C. FeayThomas O. Jeanes
    • B01D53/22B01D71/48B01D71/50C08G63/682
    • C08G63/682B01D53/22B01D71/48B01D71/50
    • The invention is a membrane comprising a dense skin of a polyestercarbonate, wherein the diphenolic residue in the backbone of the polyestercarbonate is a tetrabromo diphenolic residue, wherein the membrane has a separation factor for oxygen and nitrogen of 6.5 or greater at about 24.degree. C. In another aspect, the invention is a method of separating oxygen from a mixture of gases comprising nitrogen and oxygen, wherein the method comprises (a) contacting the gas mixture with a thin, non-porous membrane comprising a polyestercarbonate described hereinbefore under conditions such that the oxygen selectively permeates through the membrane to the other side of the membrane; and (b) removing the permeated oxygen from the other side of the membrane, wherein separation factor for the oxygen and nitrogen is 6.5 or greater at about 24.degree. C. The membranes of this invention demonstrate surprisingly high separation factors for oxygen and nitrogen separations. The membranes of this invention have good mechanical properties and therefore are useful under more extreme conditions, for example temperature and pressure, than many commercially used membranes.
    • 本发明是一种包含聚酯碳酸酯致密表皮的膜,其中聚酯碳酸酯主链中的二酚残基是四溴二酚残基,其中该膜在约24℃下具有6.5或更高的氧和氮分离因子。 在另一方面,本发明是从包含氮和氧的气体混合物中分离氧的方法,其中所述方法包括(a)使气体混合物与包含上述聚酯碳酸酯的薄的非多孔膜接触,条件是使得 氧选择性地渗透膜到膜的另一侧; 和(b)从膜的另一侧除去渗透的氧气,其中在约24℃下氧和氮的分离因子为6.5或更大。本发明的膜表现出惊人的高分离因子用于氧气和氮气的分离。 本发明的膜具有良好的机械性能,因此在许多商业使用的膜的更极端条件下,例如温度和压力下是有用的。