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    • 8. 发明授权
    • Polycarbonates with end groups containing bonds which can be crosslinked
by UV light
    • 具有端基的聚碳酸酯含有可以通过UV光交联的键
    • US4230548A
    • 1980-10-28
    • US34839
    • 1979-04-30
    • Siegfried AdelmannDieter MargotteHugo Vernaleken
    • Siegfried AdelmannDieter MargotteHugo Vernaleken
    • C08F2/00C08F2/48C08F290/00C08F299/00C08F299/04C08G63/00C08G63/64C08G64/00C08G64/14C08G63/62C08J3/28
    • C08G63/64C08G64/14C08K5/07C08K5/42
    • The present invention relates to high-molecular weight aromatic polycarbonates, based on diphenols and monofunctional chain stoppers, corresponding to the formula (I) ##STR1## in which Z denotes the radical of a diphenol,n denotes an integer from about 20 to 400,E denotes ##STR2## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.The present invention also relates to a process for the preparation of the polycarbonates of the formula (I) comprising reacting diphenols of the formula (II)HO--Z--OH (II)whereinZ is a divalent aromatic radical, and/or their chlorocarbonic acid esters in accordance with the processes which are known for the preparation of polycarbonates, in a homogeneous or heterogeneous phase system, with compounds of the formula (III) ##STR3## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.The present invention also relates to a process for cross-linking the polycarbonates of the formula (I) with UV light, after adding a photoinitiator and, optionally, flameproofing and photo-reducing agents. Finally, the present invention relates to the cross-linked polycarbonates obtained via this process.
    • 本发明涉及对应于其中Z表示二酚的基团的式(I)的式(I)的二酚和单官能链终止剂的高分子量芳族聚碳酸酯,n表示约20的整数 至400,E表示,其中m表示0或1,R表示H或C 1 -C 3 - 烷基。 本发明还涉及制备式(I)的聚碳酸酯的方法,包括使式(II)的二酚HO-Z-OH(II)其中Z是二价芳族基团和/或它们的氯碳 (III)化合物,其中m表示0或1,R表示H或C1(III)的化合物,其在均相或非均相系统中制备聚碳酸酯的方法是酸酯, -C 3-烷基。 本发明还涉及在加入光引发剂和任选的阻燃和光还原剂之后使式(I)的聚碳酸酯与UV光交联的方法。 最后,本发明涉及通过该方法获得的交联聚碳酸酯。