Polycarbonate/poly(ethylene terephthalate) resin solutions
    5.
    发明授权
    Polycarbonate/poly(ethylene terephthalate) resin solutions 失效
    聚碳酸酯/聚对苯二甲酸乙二醇酯树脂溶液

    公开(公告)号:US4461877A

    公开(公告)日:1984-07-24

    申请号:US446875

    申请日:1982-12-06

    IPC分类号: C08L67/02 C08L69/00

    CPC分类号: C08L67/02 C08L69/00

    摘要: Thermoplastic compositions which are a solution of polycarbonate and poly(ethylene terephthalate) resins are described. These solutions are produced by melt admixture of a polycarbonate prepared from bis(3,5,dimethyl-4-hydroxy phenyl) sulfone and 2,2-bis(4-hydroxy-phenyl) propane and polyethylene terephthalate) to provide the composition with a single glass transition point.

    摘要翻译: 描述了作为聚碳酸酯和聚(对苯二甲酸乙二醇酯)树脂溶液的热塑性组合物。 这些溶液通过由双(3,5-二甲基-4-羟基苯基)砜和2,2-双(4-羟基 - 苯基)丙烷和聚对苯二甲酸乙二醇酯制备的聚碳酸酯的熔融混合物熔融混合而制备,以使组合物具有 单一玻璃化转变点。

    Process for preparing purified bis(3,5-dialkyl-4-hydroxyphenyl) sulfone
    6.
    发明授权
    Process for preparing purified bis(3,5-dialkyl-4-hydroxyphenyl) sulfone 失效
    制备纯化的双(3,5-二烷基-4-羟基苯基)砜的方法

    公开(公告)号:US4384143A

    公开(公告)日:1983-05-17

    申请号:US259523

    申请日:1981-05-01

    CPC分类号: C07C317/00 C08G64/081

    摘要: Purified bis(3,5-dialkyl-4-hydroxyphenyl) sulfone useful for production of improved carbonate polymer is described. This sulfone is precipitated by deammoniation of an aqueous solution and then removed from the supernatant solution. This produces a product having minimal phenol sulfonic impurities. It may be employed to form carbonate polymer having improved physical properties.

    摘要翻译: 描述了可用于生产改进的碳酸酯聚合物的纯化的双(3,5-二烷基-4-羟基苯基)砜。 该砜通过水溶液的脱氨沉淀,然后从上清液中除去。 这产生具有最小苯酚磺酸杂质的产物。 它可用于形成具有改善的物理性质的碳酸酯聚合物。

    Low plate-out polycarbonates
    7.
    发明授权
    Low plate-out polycarbonates 失效
    低平板聚碳酸酯

    公开(公告)号:US4950782A

    公开(公告)日:1990-08-21

    申请号:US286827

    申请日:1988-12-20

    IPC分类号: C07C59/68 C07C59/70 C08G64/14

    CPC分类号: C07C59/70 C07C59/68 C08G64/14

    摘要: Polycarbonate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group consisting of hydrogen, halogen, hydrocarbyl of from 1 to 12 carbon atoms, inclusive; and halogen-substituted hydrocarbyl of 1 to 12 carbon atoms, inclusive; R.sub.1 is attached to a ring carbon atom at one of the 4, 5 or 6 positions; and R.sub.2 and R.sub.3 when taken together represent the divalent moiety of formula: --CH.dbd.CH.sub.2 --CH.sub.2 .dbd.CH--which effectively creates an additional fused aromatic ring structure. The resins exhibit a low plate-out when processed thermally.

    摘要翻译: 聚碳酸酯树脂用选自下式的基团链终止:其中R 1,R 2和R 3各自独立地选自氢,卤素,含1至12个碳原子的烃基; 和含有1至12个碳原子的卤素取代的烃基; 在4-5个或6个位置的R1连接到环碳原子上; 并且R 2和R 3一起表示式:-CH = CH 2 -CH 2 = CH-的二价部分,其有效地产生另外的稠合芳环结构。 当热处理时,树脂表现出低的平板。