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    Process for the preparation of high molecular weight optionally branched polyarylenesulphides
    1.
    发明授权
    Process for the preparation of high molecular weight optionally branched polyarylenesulphides 失效
    用于制备高分子量任选支化的聚芳基硫化物的方法

    公开(公告)号：US4837301A

    公开(公告)日：1989-06-06

    申请号：US142186

    申请日：1988-01-06

    申请人： Volker Glock ,  Wolfgang Ebert ,  Rolf-Volker Meyer

    发明人： Volker Glock ,  Wolfgang Ebert ,  Rolf-Volker Meyer

    IPC分类号： C08G75/04

    CPC分类号： C08G75/04

    摘要： This invention relates to a process for the preparation of high molecular weight, optionally branched polyarylenesulphides from alkali metal sulphides, optionally in admixture with alkali metal hydrogen sulphides and aromatic dihalogen compounds, in a polar solvent in the presence of from 0.1 to 6.0 mol-%, preferably from 0.25 to 4.0 mol-%, of an aromatic monoalkoxy or monoalkylthio compound. The polyarylenesulphides obtained have reproducibly adjustable melt viscosities and molecular weights and are distinguished by their reduced tendency to corrosion.

    摘要翻译： 本发明涉及一种制备高分子量，任选支化的聚芳基硫化物的方法，其中碱金属硫化物任选与碱金属硫化氢和芳族二卤素化合物混合，在极性溶剂中，存在0.1-60mol％ ，优选0.25至4.0mol％的芳族单烷氧基或单烷硫基化合物。 获得的聚芳基硫化物具有可重复调节的熔体粘度和分子量，并且其腐蚀倾向降低。

    Process for the production of polyesters and their use as binder or binder component in powder lacquers
    2.
    发明授权
    Process for the production of polyesters and their use as binder or binder component in powder lacquers 失效
    生产聚酯的方法及其作为粉末涂料中的粘合剂或粘合剂成分的用途

    公开(公告)号：US4943623A

    公开(公告)日：1990-07-24

    申请号：US273949

    申请日：1988-11-21

    申请人： Wolfgang Ebert ,  Rolf-Volker Meyer ,  Hans-Joachim Kreuder

    发明人： Wolfgang Ebert ,  Rolf-Volker Meyer ,  Hans-Joachim Kreuder

    IPC分类号： C08G63/12 ,  C08G63/60 ,  C08G63/81 ,  C09D5/46 ,  C09D167/00

    CPC分类号： C09D167/00 ,  C08G63/60 ,  C08G63/81 ,  Y10T428/31565 ,  Y10T428/31786

    摘要： Polyesters useful as a binder or a component of a binder for powder lacquers and which contain hydroxyls, carboxyls or both and which have an acid value of up to 50, a hydroxyl value of up to 200 and a sum of hydroxyl value and acid value of from 20 to 200 is produced by reacting:(a) an acid component selected from the group consisting of (a1) at least one poly-functional organic carboxylic acid, (a2) at least one ester-forming derivative of a poly-functional organic carboxylic acid, (a3) at least one organic hydroxycarboxylic acid, (a4) at least one lactone of an organic hydroxycarboxylic acid, and mixtures thereof, with the proviso that at least 50 mol-% of component (a) consists of aromatic species of components (a1), (a2), (a3), (a4), or mixtures thereof,with(b) a polyol component which is at least one polyhydric alcohol having a molecular weight in the range from 62 to 250,while maintaining an equivalent ratio of carboxyl groups to hydroxyl groups of form 0.65:1 to 1.5:1, with the proviso that component (b) is used in a quantity of at least 30% by weight, based on the weight of component (a), and the reaction is carried out in the presence of(c) at least 5% by weight, based on the weight of components (a) and (b), of a solvent containing amide groups, lactam groups, or both and said solvent is free from any nitrogenhydrogen bonds.

    摘要翻译： 可用作粘合剂或用于粉末涂料的粘合剂组分的聚酯，其含有羟基，羧基或两者，并且其酸值高达50，羟值高达200，羟基值和酸值之和 通过使（a）选自（a1）至少一种多官能有机羧酸的酸成分，（a2）至少一种多官能有机羧酸的成酯衍生物， 羧酸，（a3）至少一种有机羟基羧酸，（a4）至少一种有机羟基羧酸的内酯及其混合物，条件是至少50摩尔％的组分（a）由芳族物质 组分（a1），（a2），（a3），（a4）或其混合物与（b）至少一种分子量为62-250的多元醇的多元醇组分，同时保持 羧基与羟基的当量比为0.65：1至1.5：1 条件是组分（b）以基于组分（a）的重量为至少30重量％的量使用，并且反应在（c）至少5重量％的存在下进行， 基于组分（a）和（b）的重量，含有酰胺基，内酰胺基或二者的溶剂，所述溶剂不含任何氮氢键。