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    • 6. 发明授权
    • Aminoalkyl-substituted organopolysiloxane thiourea derivatives and
methods of preparation and use thereof
    • 氨基烷基取代的有机聚硅氧烷硫脲衍生物及其制备和使用方法
    • US5061773A
    • 1991-10-29
    • US558867
    • 1990-07-30
    • Peter PansterUlrich DeschlerPeter Kleinschmit
    • Peter PansterUlrich DeschlerPeter Kleinschmit
    • C02F1/62B01J20/26C02F1/28C08G77/28C08G77/48C08G77/54C08G77/58
    • C02F1/285B01J20/26C08G77/28C08G77/54C08G77/58
    • Aminoalkyl-substituted organopolysiloxane thioureas are disclosed which consist of the units ##STR1## whereby R.sup.1 stands for a group ##STR2## R.sup.5 is an alkylene grouping, R.sup.2 is equal to R.sup.1 or H, R.sup.3 is equal to R.sup.1 or H or a group (CH.sub.2).sub.n --N(R.sup.6).sub.2 (III) (in which n=1-6, R.sup.6 =H or an alkyl group with C.sub.1 -C.sub.5) and R.sup.4 =H or a group of the formula (III), whereby (I) contains at most 2 (III) groups and at most 2 (III) groups and the free valances of the oxygen atoms sitting on the silicon atom are saturated by silicon atoms of other (III) groups, optionally with the insertion of cross-linking agents containing Si, Ti or Zr. The compounds can be random copolycondensates, block copolycondensates or mixed copolycondensates in relation to the optionally present cross-linking agents. In addition, various methods of preparing the compounds are indicated. The compounds can be used especially for the removal of dissolved metals from aqueous or organic phases.
    • (I)单元组成的氨基烷基取代的有机聚硅氧烷硫脲,其中R1代表一个基团(II)R5是亚烷基,R2等于R1或H,R3等于R1或 H或基团(CH 2)n N(R 6)2(III)(其中n = 1-6,R 6 = H或具有C 1 -C 5的烷基)和R 4 = H或式(III)的基团, 其中(I)含有至多2个(III)基团和至多2个(III)基团,并且位于硅原子上的氧原子的游离价数被其它(III)基团的硅原子饱和,任选地插入 含有Si,Ti或Zr的交联剂。 所述化合物可以是无规共聚缩合物,相对于任选存在的交联剂阻断共聚缩聚物或混合的共缩聚物。 另外,表示了制备化合物的各种方法。 该化合物特别用于从水相或有机相中除去溶解的金属。