Ring-opened norbornyl polymers
    3.
    发明授权
    Ring-opened norbornyl polymers 失效
    开环降冰片基聚合物

    公开(公告)号:US4412044A

    公开(公告)日:1983-10-25

    申请号:US360908

    申请日:1982-03-23

    CPC分类号: C08G61/08

    摘要: Polymers consisting essentially of the units (A) and (B) with an intrinsic viscosity in the range of 0.3 to 4.0, a content of the unit (A) of 10 to 90 mol % of the total structural units and a content of double bonds of trans-configuration of 40% or more are disclosed. The units (A) and (B) are represented by the structural formulas: ##STR1## wherein R' is hydrogen atom, an alkyl or phenyl, R.sup.2 is hydrogen or an alkyl, R.sup.3 is an alkyl. The polymers are preferably prepared by partial hydrolysis of the polymers consisting essentially of the unit (B).

    摘要翻译: 基本上由单位(A)和(B)组成的聚合物,其特性粘度在0.3〜4.0范围内,单元(A)的含量为总结构单元的10〜90摩尔%,双键含量 的反式构型为40%以上。 单元(A)和(B)由以下结构式表示:其中R'是氢原子,烷基或苯基,R 2是氢或烷基,R 3是 烷基。 聚合物优选通过基本上由单元(B)组成的聚合物部分水解制备。

    Process for producing polyphenylene ether
    6.
    发明授权
    Process for producing polyphenylene ether 失效
    生产聚苯醚的方法

    公开(公告)号:US4617372A

    公开(公告)日:1986-10-14

    申请号:US800033

    申请日:1985-11-20

    IPC分类号: C08G65/38 C08G65/44

    CPC分类号: C08G65/44

    摘要: Polyphenylene ethers are produced by oxidative polymerization of phenols in the presence of a catalyst comprising the combination of divalent manganese salts, an oxine or derivatives thereof, an alkanolamine, and an alkaline compound. This catalyst has an increased polymerization activity and achieves a higher productivity. In addition, the catalyst enables the polymerization to conduct at relatively high temperatures.

    摘要翻译: 聚苯醚通过在包含二价锰盐,喔ine或其衍生物,链烷醇胺和碱性化合物的组合的催化剂存在下酚的氧化聚合来制备。 该催化剂具有增加的聚合活性并实现更高的生产率。 此外,催化剂使聚合在相对较高的温度下进行。

    Process for producing polyphenylene oxide with alkanolamine and
secondary amine
    7.
    发明授权
    Process for producing polyphenylene oxide with alkanolamine and secondary amine 失效
    用链烷醇胺和仲胺生产聚苯醚的方法

    公开(公告)号:US4868276A

    公开(公告)日:1989-09-19

    申请号:US88323

    申请日:1987-08-24

    IPC分类号: C08G65/38 C08G65/44

    CPC分类号: C08G65/44

    摘要: A process for producing a plyphenylene oxide is disclosed, comprising oxidative polymerization of a nucleus-substituted phenol with an oxygen-containing gas in an organic solvent in the presence of a catalyst system comprising a manganese compound containing at least one divalent manganese salt, at least one basic compound selected from hydroxides, alkoxides or phenoxides of the group IA metals of the Periodic Table and hydroxides or oxides of the group IIA metals of the Periodic Table, an alkanolamine represented by formula (I)R.sup.1 --NH--R.sup.2 --OH (I)wherein R.sup.1 represents a hydrogen atom, an alkyl group having from 1 to 12 carbon atoms, or a hydroxyl-substituted alkyl group having from 1 to 12 carbon atoms; and R.sup.2 represents an alkylene group having from 2 to 12 carbon atoms, and an amine represented by formula (II)R.sup.3 R.sup.4 NH (II)wherein R.sup.3 and R.sup.3 each represents a hydrogen atom, an alkyl group having from 1 to 24 carbon atoms, or an aralkyl group having from 7 to 24 carbon atoms, with proviso that R.sup.3 and R.sup.4 do not simultaneously represent a hydrogen atom, or R.sup.3 and R.sup.4 may be taken together to form a ring. The polyphenylene oxide produced has improved planar impact characteristics without failure in other properties and is, therefore, suitable as a starting material for the production of polyphenylene oxide-based polymer alloy.

    摘要翻译: 公开了一种生产聚苯醚的方法,包括在包含含有至少一种二价锰盐的锰化合物的催化剂体系的存在下,在有机溶剂中将含有取代的苯酚与含氧气体氧化聚合,至少 选自元素周期表的IA族金属的氢氧化物,烷氧化物或苯氧基化物的碱性化合物和周期表的IIA族金属的氢氧化物或氧化物,由式(I)表示的链烷醇胺R1-NH-R2-OH(I )其中R1表示氢原子,具有1至12个碳原子的烷基或具有1至12个碳原子的羟基取代的烷基; R2表示碳原子数2〜12的亚烷基,式(Ⅱ)表示的胺R3R4NH(Ⅱ)其中R3和R3各自表示氢原子,碳原子数为1〜24的烷基或 具有7至24个碳原子的芳烷基,条件是R 3和R 4不同时表示氢原子,或者R 3和R 4可以一起形成环。 所生产的聚苯醚具有改善的平面冲击特性,而其它性能没有破坏,因此适合作为聚苯醚类聚合物合金的制造原料。