Compositions and method for producing fuel resistant liquid
polythioether polymers with good low temperature flexibility
    18.
    发明授权
    Compositions and method for producing fuel resistant liquid polythioether polymers with good low temperature flexibility 失效
    用于生产具有良好低温柔韧性的耐燃液体聚硫醚聚合物的组合物和方法

    公开(公告)号:US5912319A

    公开(公告)日:1999-06-15

    申请号:US802130

    申请日:1997-02-19

    摘要: A polythioether includes a structure having the formula I--R.sup.1 --�--S--(CH.sub.2).sub.2 --O--�--R.sup.2 --O--!.sub.m --(CH.sub.2).sub.2 --S--R.sup.1 --!.sub.n --whereinR.sup.1 denotes a divalent C.sub.2-6 n-alkyl, C.sub.3-6 branched alkyl, C.sub.6-8 cycloalkyl or C.sub.6-10 alkylcycloalkyl group, --�(--CH.sub.2 --).sub.p --X--!.sub.q --(--CH.sub.2 --).sub.r --, or --�(--CH.sub.2 --).sub.p --X--!.sub.q --(--CH.sub.2 --).sub.r -- in which at least one --CH.sub.2 -- unit is substituted with a methyl group,R.sup.2 denotes methylene, a divalent C.sub.2-6 n-alkyl, C.sub.2-6 branched alkyl, C.sub.6-8 cycloalkyl or C.sub.6-10 alkylcycloalkyl group, --�(--CH.sub.2 --).sub.p --X--!.sub.q --(--CH.sub.2 --).sub.r --, or --�(--CH.sub.2 --).sub.p --X--!.sub.q --(--CH.sub.2 --).sub.r -- in which at least one --CH.sub.2 -- unit is substituted with a methyl group,X denotes one selected from the group consisting of O, S and --NR.sup.6,R.sup.6 denotes H or methyl,m is a rational number from 0 to 10,n is an integer from 1 to 60,p is an integer from 2 to 6,q is an integer from 0 to 5, andr is an integer from 2 to 10.The polythioether is a liquid at room temperature and pressure.

    摘要翻译: 聚硫醚包括具有式I -R 1 - [-S-(CH 2)2 -O - [-R 2 -O] m - (CH 2)2 -S-R 1] n - 的结构,其中R 1表示二价C 2 -6 - 烷基,C 3-6支链烷基,C6-8环烷基或C6-10烷基环烷基, - [( - CH2-)pX-] q - ( - CH2-)r-或 - [( - CH2- )pX-] q - ( - CH2-)r-,其中至少一个-CH 2 - 单元被甲基取代,R 2表示亚甲基,二价C 2-6正烷基,C 2-6支链烷基, 8 - 环烷基或C6-10烷基环烷基, - [( - CH2-)pX-] q - ( - CH2-)r-或 - [( - CH2-)pX-] q - ( - CH2-) 其中至少一个-CH 2 - 单元被甲基取代,X表示选自O,S和-NR 6的一个,R 6表示H或甲基,m为0至10的有理数,n为 p为1〜60的整数,p为2〜6的整数,q为0〜5的整数,r为2〜10的整数。聚硫醚在室温和压力下为液体。