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    • 75. 发明授权
    • Polyether siloxane graft polymers
    • 聚醚硅氧烷接枝聚合物
    • US4812364A
    • 1989-03-14
    • US130055
    • 1987-12-08
    • Heinrich AlbertsHans-Bernd Alteweier
    • Heinrich AlbertsHans-Bernd Alteweier
    • C08F283/06C08F283/12C09D5/46C09D7/47B32B9/04
    • C09D7/06C08F283/06C08F283/122Y10T428/31663
    • Novel graft copolymer comprising(a) 0.1 to 99.9% by weight of polyalkylene oxide-organopolysiloxane block and/or comb polymer units and(b) 99.1 to 0.1% by weight of units of polymerized perfluoroalkyl substituted allyl compounds, which graft polymers contain structural elements corresponding to the following general formula: ##STR1## wherein X denotes a hydrogen atom or a methyl group,Y and Z denote, independently of one another, a hydrogen atom or an alkyl group containing 1 to 18 carbon atomsQ denotes a divalent alkylene group with 1 to 12 carbon atoms or other divalent radicals,R.sub.f denotes a perfluorinated aliphatic, optionally branched group with 1 to 20 carbon atoms and the group may contain at most one hydrogen or chlorine atom on two carbon atoms in addition to the fluorine atoms,R.sub.Si denotes a polyalkylene oxide-organopolysiloxane block and/or comb polymer residue andR.sub.Po denotes a polyalkylene oxide chain of the polyalkylene oxide-organopolysiloxane block and/or comb polymer, and in the graft polymers, more than 50% by weight of perfluoroalkyl substituted allyl monomers have been added in monomolecular form to the alkylene oxide units of the polyalkylene oxideorganopolysiloxane block and/or comb polymers,are useful as levelling agents for aqueous and/or solvent-containing lacquers and coating systems, for powder lacquers and for whirl sintering coating compounds.
    • 新型接枝共聚物,其包含(a)0.1至99.9重量%的聚环氧烷 - 有机聚硅氧烷嵌段和/或梳形聚合物单元和(b)99.1至0.1重量%的聚合的全氟烷基取代的烯丙基化合物单元,该接枝聚合物含有结构元素 对应于以下通式:其中X表示氢原子或甲基,Y和Z彼此独立地表示氢原子或含有1至18个碳原子的烷基Q表示二价亚烷基 具有1至12个碳原子或其它二价基团,Rf表示具有1至20个碳原子的全氟化脂族,任选支链基团,除了氟原子之外,基团可以在两个碳原子上含有至多一个氢或氯原子,RSi 表示聚环氧烷 - 有机聚硅氧烷嵌段和/或梳形聚合物残基,RPo表示聚环氧烷 - 有机聚硅氧烷嵌段和/或梳形聚醚的聚环氧烷链 r,并且在接枝聚合物中,多于50重量%的全氟烷基取代的烯丙基单体已经以单分子形式加入到聚环氧烷有机聚硅氧烷嵌段和/或梳形聚合物的环氧烷单元中,可用作水性和/ 或含溶剂的漆和涂料体系,用于粉末涂料和旋转烧结涂料化合物。