Composition and method for producing fuel resistant liquid polythioether polymers with good low temperature flexibility
    1.
    发明授权
    Composition 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油性聚硫醚聚合物的组合物和方法

    公开(公告)号:US06172179B2

    公开(公告)日:2001-01-09

    申请号:US08928972

    申请日:1997-09-12

    IPC分类号: C08G7500

    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 C2-6 n-alkylene, C3-6 branched alkylene, C6-8cycloalkylene or C6-10 alkylcycloalkylene 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 a C2-6 n-alkylene, C2-6 branched alkylene, C6-8 cycloalkylene or C6-10 alkylcycloalkylene 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C2-6正亚烷基,C3-6支链亚烷基,C6-8亚烷基或C6-10烷基亚环烷基, - [( - CH2-)pX-] q - ( - CH2- ) - - - ( - CH2-)pX-] q - ( - CH2-)r-,其中至少一个-CH2-单元被甲基取代,R2表示C2-6正亚烷基, C2-6支链亚烷基,C6-8亚环烷基或C6-10烷基亚环烷基,或 - [( - CH2-)pX-] q - ( - CH2-)r-,X表示选自O,S 和-NR 6,R 6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的整数,并且r为 2至10的整数。聚硫醚在室温和压力下为液体。