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    • 6. 发明授权
    • Use of hydroxyalkylphenones as initiators for radiation curing of
aqueous prepolymer dispersions
    • 使用羟烷基苯酮作为引发剂用于辐射固化含水预聚物分散体
    • US4547394A
    • 1985-10-15
    • US461906
    • 1983-01-28
    • Claus P. HerzJorg OhngemachOtto Stahlecker
    • Claus P. HerzJorg OhngemachOtto Stahlecker
    • C08F2/00C08F2/50C08F4/00C09D4/00D06M13/02D06M13/248D06M13/252D06M15/00D21H19/24G03F7/031
    • C08F2/50G03F7/031
    • Hydroxyalkylphenones of formula I ##STR1## wherein R is hydrogen, halogen, alkyl of 1 to 18 C atoms, alkoxy of 1 to 4 C atoms or ##STR2## R.sub.a is hydrogen, halogen or alkyl of 1 to 4 C atoms; R.sup.1 and R.sup.2 (a) are each alkyl of up to 14, together 4 to 16, C atoms or together are alkylene of 4 to 8 C atoms, if R is hydrogen, halogen, alkyl of 1 to 6 C atoms or alkoxy of 1 to 4 C atoms, or (b) are each alkyl of 1 to 6 C atoms or together are alkylene of 2 to 8 C atoms, if R is alkyl of 3 to 18 C atoms or ##STR3## R.sup.3 and R.sup.4 are each alkyl of 1 to 6 C atoms or together are alkylene of 2 to 8 C atoms and Z is --CO--, --CH.sub.2 --, --O-- or --S--; are suitable as initiators for radiation curing aqueous prepolymer dispersions. They have good stability in aqueous systems and also upon removal of the water from these systems, and they have a considerably increased reactivity in their ability to initiate the curing of aqueous systems curable by radiation.
    • 式I的羟烷基苯酮其中R为氢,卤素,1至18个碳原子的烷基,1至4个C原子的烷氧基或R 1为氢,卤素或1至4个C原子的烷基; 如果R是氢,卤素,1至6个C原子的烷基或1至6个碳原子的烷氧基,则R1和R2(a)各自为至多14个,最多为4至16个碳原子的烷基或一起为4至8个C原子的亚烷基 或(b)各自为1至6个C原子的烷基或一起为2至8个C原子的亚烷基,如果R为3至18个C原子的烷基或R 3和R 4各自为 1至6个C原子或一起是2至8个C原子的亚烷基,Z是-CO - , - CH 2 - , - O-或-S-; 适合作为辐射固化水性预聚物分散体的引发剂。 它们在水性体系中具有良好的稳定性,并且也从这些体系中除去水,并且它们在其通过辐射固化的水性体系的起始固化能力方面具有显着提高的反应性。