Copoly(phenylene sulfide)
    3.
    发明授权
    Copoly(phenylene sulfide) 失效
    共聚(苯硫醚)

    公开(公告)号:US5021546A

    公开(公告)日:1991-06-04

    申请号:US536049

    申请日:1990-06-11

    IPC分类号: C08G75/02 C08G75/14

    摘要: A process for producing elemental iodine and a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein y is in the range of 0.001 to 0.15, x is in the range of 0.02 to 0.65 and n is at least 100, consisting essentially of (1) reacting at a temperature above about 175.degree. C., a mixture of diiodobenzene and diiodobiphenyl and elemental sulfur to produce the copoly(arylene sulfide), and (2) recovering the elemental iodine.

    摘要翻译: 对应于结构 + TR 的元素碘和共聚(亚芳基硫醚)的方法,其中y在0.001至0.15的范围内,x在0.02至0.65的范围内,n至少为 100,基本上由(1)在高于约175℃的温度下反应,二碘苯和二碘联苯和元素硫的混合物产生共聚(亚芳基硫醚),和(2)回收元素碘。

    Higher molecular weight polyesters from diacid anhydrides and cyclic
alkylene carbonates
    4.
    发明授权
    Higher molecular weight polyesters from diacid anhydrides and cyclic alkylene carbonates 失效
    来自二酸酐和环状碳酸亚烷基酯的较高分子量聚酯

    公开(公告)号:US4501877A

    公开(公告)日:1985-02-26

    申请号:US558391

    申请日:1983-12-05

    IPC分类号: C08G63/42 C08G63/00

    CPC分类号: C08G63/42

    摘要: Higher molecular weight polyesters are prepared from diacid anhydrides and cyclic alkylene carbonates by the process of first drying the reaction mixture either totally or at least substantially completely by azeotropic distillation of water using a suitable organic medium. The catalyst is then added and the polycondensation conducted as conventional. The polymers obtained are markedly higher in molecular weight than if the drying step is omitted, and the polycondensation period is dramatically shortened.

    摘要翻译: 通过首先通过使用合适的有机介质共沸蒸馏水来完全或至少基本完全地干燥反应混合物的方法,由二酸酐和环状亚碳酸酯制备高分子量聚酯。 然后加入催化剂,并按常规进行缩聚反应。 获得的聚合物的分子量显着高于省略干燥步骤,并且缩聚期显着缩短。

    Bonding compositions and shaped articles utilizing the bonding
compositions
    5.
    发明授权
    Bonding compositions and shaped articles utilizing the bonding compositions 失效
    使用粘合组合物的粘结组合物和成型制品

    公开(公告)号:US4482588A

    公开(公告)日:1984-11-13

    申请号:US496345

    申请日:1983-05-19

    摘要: Bonding compositions for bonding polyesters or copolyesters to poly(vinyl alcohol) or copolymers thereof, the composition comprising a poly(esteramide) having an inherent viscosity of at least 0.8 dl/g, said poly(esteramide) containing repeating units from 70 to 90 mol percent of a dicarboxylic acid selected from adipic, pimelic, suberic, azelaic, sebacic acid or combinations thereof and 10 to 30 mol percent of a second linear aliphatic dicarboxylic acid having at least four carbon atoms connected linearly between the two acid groups or an aromatic dicarboxylic acid; repeating units from 10 mol percent to 30 mol percent of a diamine selected from 1,6-hexanediamine, 1,4-cyclohexanebismethylamine or combinations thereof; and repeating units from 90 to 70 mol percent of a glycol selected from ethylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol or combinations thereof. The repeating units from the second linear aliphatic dicarboxylic acid and repeating units from the diamine are present in equal molar amounts. Also disclosed are shaped articles comprising a polyester polymer layer and a poly(vinyl alcohol) layer, the layers being bonded together with bonding compositions of this invention.

    摘要翻译: 用于将聚酯或共聚酯键合到聚(乙烯醇)或其共聚物的粘合组合物,该组合物包含特性粘度为至少0.8dl / g的聚(酯酰胺),所述聚(酯酰胺)含有70-90mol重量单元 选自己二酸,庚二酸,辛二酸,壬二酸,癸二酸或其组合的二羧酸的百分比和10至30摩尔%的具有至少四个碳原子的直链脂族二羧酸在两个酸基之间直接连接或芳族二羧酸 酸; 从10摩尔%至30摩尔%的选自1,6-己二胺,1,4-环己烷二甲胺或其组合的二胺的重复单元; 以及90-70mol%的选自乙二醇,1,4-丁二醇,1,4-环己烷二甲醇或其组合的二醇的重复单元。 来自第二直链脂族二羧酸的重复单元和来自二胺的重复单元以相等摩尔量存在。 还公开了包含聚酯聚合物层和聚(乙烯醇)层的成型制品,这些层通过本发明的粘合组合物结合在一起。

    Process for the preparation of copoly(arylene sulfide) having a
decreased amount of disulfide radicals
    10.
    发明授权
    Process for the preparation of copoly(arylene sulfide) having a decreased amount of disulfide radicals 失效
    制备二硫键数量少的共聚(亚芳基硫醚)的方法

    公开(公告)号:US4977224A

    公开(公告)日:1990-12-11

    申请号:US437701

    申请日:1989-11-17

    IPC分类号: C08G75/02 C08G75/06 C08G75/14

    摘要: A process for preparation of a copoly(arylene sulfide) which has a decreased amount of disulfide radicals and corresponds to the structure ##STR1## wherein A is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.45 to 0 and n is at least 50,comprising contacting a copoly(arylene sulfide) corresponding to the structure ##STR2## wherein A is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.50 to 0.001 and n is at least 25,in the melt phase with a diiodoaromatic compound corresponding to the structureI-A-IwhereinA is a divalent substituted or unsubstituted aromatic radical.

    摘要翻译: 一种制备二硫键数量少并且对应于[(-AS-)1-x(-ASS-)x] n结构的共聚(亚芳基硫醚)的方法,其中A是二价取代或未取代的芳族 基团,x在0.45至0的范围内,n至少为50,其中包括使对应于[(-AS-)1-x(-ASS-)x] n结构的共聚(亚芳基硫醚) 二价取代或未取代的芳族基团,x在0.50至0.001的范围内且n至少为25,在熔融相中与对应于其中A是二价取代或未取代的芳族基团的结构IAI的二碘代芳族化合物相结合。