Composition for producing fuel resistant liquid polythioether polymers with good low temperature flexibility
    33.
    发明授权
    Composition for producing fuel resistant liquid polythioether polymers with good low temperature flexibility 有权
    用于生产耐燃液体聚硫醚聚合物的组合物,具有良好的低温柔韧性

    公开(公告)号:US06232401B1

    公开(公告)日:2001-05-15

    申请号:US09318500

    申请日:1999-05-25

    IPC分类号: C08F800

    摘要: A polythioether includes a structure having the formula I —R1—[—S—(CH2)2—O—[—R2—O—]m—(CH2)2—S—R1—]n—  I wherein R1 denotes a divalent C2-6 n-alkyl, C3-6 branched alkyl, C6-8 cycloalkyl or C6-10 alkylcycloalkyl group, —[(—CH2—)p—X—]q—(—CH2—)r—, or —[(—CH2—)p—X—]q—(—CH2—)r— in which at least one —CH2— unit is substituted with a methyl group, R2 denotes methylene, a divalent C2-6 n-alkyl, C2-6 branched alkyl, C6-8 cycloalkyl or C6-10 alkylcycloalkyl group, or —[(—CH2—)p—X—]q—(—CH2—)r—, X denotes one selected from the group consisting of O, S and —NR6, R6 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, and r 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的结构,其中R1表示二价C 2-6正烷基,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-CH2-单元被甲基取代,R2表示亚甲基,二价C2- 6 - 正烷基,C 2-6支链烷基,C6-8环烷基或C6-10烷基环烷基,或 - [( - CH2-)pX-] q - ( - CH2-)r-,X表示选自 由O,S和-NR6组成,R6表示H或甲基,m为0至10的有理数,n为1至60的整数,p为2至6的整数,q为0至 5,and是2至10的整数。聚硫醚在室温和压力下为液体。