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    • 3. 发明授权
    • Poly(meth)acrylimide having improved optical and color properties, particularly under thermal load
    • 具有改善的光学和颜色特性的聚(甲基)丙烯酰亚胺,特别是在热负载下
    • US08598280B2
    • 2013-12-03
    • US12922627
    • 2009-02-27
    • Victor KhrenovKrzysztof SadoNils MehlerKlaus SchultesKlaus Albrecht
    • Victor KhrenovKrzysztof SadoNils MehlerKlaus SchultesKlaus Albrecht
    • C08F8/32C08F8/30C08F8/40
    • C08K5/5313C08L33/24
    • Process for preparing molding materials MM with improved optical and color properties, consisting of a polymer PM which contains units of the formula I in which R1 and R2 are each hydrogen and methyl and R3 is hydrogen, C1-C18-alkyl, C5-C8-cycloalkyl, C6-C10-aryl, C6-C10-aryl-C1-C4-alkyl, where these radicals may be up to trisubstituted by radicals selected from the group consisting of C1-C4-alkoxy and halogen, prepared in an imidation reaction known per se in a reactive extruder, in which, on completion of the imidation reaction, an amount of one or more reducing phosphorus compounds P which is effective for color stabilization is added to the polymer PM, characterized in that the phosphorus compounds are organic phosphorus compounds OP selected from the group consisting of compounds of the formula II in which R4 and R5 are each independently hydrogen or an aromatic 6-membered ring which may be up to pentasubstituted by a C1-C4-alkyl and/or C5-C8-cycloalkyl groups. Shaped bodies obtainable by the process, especially light waveguides, have a low tendency to yellowing under thermal stress, coupled with a low haze, and also a stable and high transparency.
    • 用于制备具有改进的光学和颜色特性的成型材料MM的方法由包含式I的单元的聚合物PM组成,其中R 1和R 2各自为氢,甲基和R 3为氢,C 1 -C 18烷基,C 5 -C 8 - 环烷基,C 6 -C 10 - 芳基,C 6 -C 10 - 芳基-C 1 -C 4 - 烷基,其中这些基团可以被三取代的基团选自C1-C4-烷氧基和卤素,在酰亚胺化反应中制备已知 本身在反应性挤出机中,其中在完成酰亚胺化反应时,将一种或多种对颜色稳定有效的还原磷化合物P的量加入到聚合物PM中,其特征在于磷化合物是有机磷化合物 OP选自由式II化合物组成的组,其中R 4和R 5各自独立地为氢或可被C 1 -C 4 - 烷基和/或C 5 -C 8 - 环烷基直接五取代的芳族六元环 。 通过该方法可获得的成形体,特别是光波导,在热应力下具有低的黄变倾向,并伴有低雾度,并且还具有稳定和高透明度。
    • 5. 发明申请
    • POLY(METH)ACRYLIMIDE HAVING IMPROVED OPTICAL AND COLOR PROPERTIES, PARTICULARLY UNDER THERMAL LOAD
    • 具有改进的光学和颜色特性的聚(甲基)丙烯酰亚胺,特别是在热负载下
    • US20110015317A1
    • 2011-01-20
    • US12922627
    • 2009-02-27
    • Victor KhrenovKrzysztof SadoNils MehlerKlaus SchultesKlaus Albrecht
    • Victor KhrenovKrzysztof SadoNils MehlerKlaus SchultesKlaus Albrecht
    • C08K5/5313
    • C08K5/5313C08L33/24
    • Process for preparing moulding materials MM with improved optical and colour properties, consisting of a polymer PM which contains units of the formula I in which R1 and R2 are each hydrogen and methyl and R3 is hydrogen, C1-C18-alkyl, C5-C8-cycloalkyl, C6-C10-aryl, C6-C10-aryl-C1-C4-alkyl, where these radicals may be up to trisubstituted by radicals selected from the group consisting of C1-C4-alkoxy and halogen, prepared in an imidation reaction known per se in a reactive extruder, in which, on completion of the imidation reaction, an amount of one or more reducing phosphorus compounds P which is effective for colour stabilization is added to the polymer PM, characterized in that the phosphorus compounds are organic phosphorus compounds OP selected from the group consisting of compounds of the formula II in which R4 and R5 are each independently hydrogen or an aromatic 6-membered ring which may be up to pentasubstituted by a C1-C4-alkyl and/or C5-C8-cycloalkyl groups. Shaped bodies obtainable by the process, especially light waveguides, have a low tendency to yellowing under thermal stress, coupled with a low haze, and also a stable and high transparency.
    • 用于制备具有改进的光学和颜色特性的成型材料MM的方法由包含式I的单元的聚合物PM组成,其中R 1和R 2各自为氢,甲基和R 3为氢,C 1 -C 18烷基,C 5 -C 8 - 环烷基,C 6 -C 10 - 芳基,C 6 -C 10 - 芳基-C 1 -C 4 - 烷基,其中这些基团可以被三取代的基团选自C1-C4-烷氧基和卤素,在酰亚胺化反应中制备已知 本身在反应性挤出机中,其中在完成酰亚胺化反应时,将一种或多种对颜色稳定有效的还原磷化合物P的量加入到聚合物PM中,其特征在于磷化合物是有机磷化合物 OP选自由式II的化合物组成的组,其中R 4和R 5各自独立地为氢或可被C 1 -C 4 - 烷基和/或C 5 -C 8 - 环烷基直接五取代的芳香族6元环 。 通过该方法可获得的成形体,特别是光波导,在热应力下具有低的黄变倾向,并伴有低雾度,并且还具有稳定和高透明度。