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    • 6. 发明授权
    • Fluorescent brighteners consisting of bis-styrylbenzene compounds, a
process for their preparation and their use
    • 由双苯乙烯基苯化合物组成的荧光增白剂,其制备方法及其用途
    • US5001253A
    • 1991-03-19
    • US520843
    • 1990-05-10
    • Leonardo Guglielmetti
    • Leonardo Guglielmetti
    • C09B57/00C11D3/42D06L3/12
    • D06L3/125
    • A fluorescent brightener is proposed which consists of 51-99% of an unsymmetrically substituted compound of the formula ##STR1## in which R and R.sub.1 are identical or different and, if R and R.sub.1 are identical, R.sub.1 must occupy a position in the phenyl ring to which it is bonded which differs from the position occupied by R in its phenyl ring, and in which R and R.sub.1 independently of one another are CN or a corboxylic acid ester group, and 49-1% of a symmetrically substituted compound of the formula ##STR2## in which R is as defined above and the two R's are bonded to identical positions in their phenyl rings, as are also agents which contain these fluorescent brighteners and the use of these fluorescent brighteners for the fluorescent brightening of, in particular, textile materials, preferably made of polyester. The said fluorescent brighteners are prepared by reacting terephthaladehyde preferably with a correspondingly substituted benzylphosphonate and further reacting the resulting mixture of a correspondingly substituted 4-stilbene aldehyde and a symmetrical p-bis-styrylbenzene with a benzylphosphonate which differs from the benzylphosphonate first used.
    • 提出了一种荧光增白剂,其由51-99%的不对称取代的式(1)化合物组成,其中R和R 1相同或不同,并且如果R和R 1相同,则R1必须占据 与苯基环中R所占的位置不同的苯环,其中R和R 1彼此独立地为CN或羧酸酯基,和49-1%的对称取代的化合物 其中R如上定义并且两个R在其苯环中的相同位置键合,其中R是如上定义的,以及含有这些荧光增白剂的试剂和使用这些荧光增白剂进行荧光增白 特别是纺织材料,优选由聚合物制成。 所述荧光增白剂通过使对苯二甲醛优选与相应取代的苄基膦酸酯反应制备,并进一步使得到的相应取代的4-芪和对称的对双对苯乙烯基苯的混合物与首先使用的苄基膦酸盐不同的苄基膦酸酯反应。
    • 8. 发明授权
    • Process for the preparation of bis-styrylbenzenes
    • 双苯乙烯基苯的制备方法
    • US4785128A
    • 1988-11-15
    • US474731
    • 1983-03-18
    • Leonardo Guglielmetti
    • Leonardo Guglielmetti
    • C09B57/00C11D3/42D06L3/12C07C121/64
    • D06L3/125
    • A fluorescent brightener is proposed which consists of 51-99% of an unsymmetrically substituted compound of the formula ##STR1## in which R and R.sub.1 are identical or different and, if R and R.sub.1 are identical, R.sub.1 must occupy a position in the phenyl ring to which it is bonded which differs from the position occupied by R in its phenyl ring, and in which R and R.sub.1 independently of one another are CN or a carboxylic acid ester group, and 49-1% of a symmetrically substituted compound of the formula ##STR2## in which R is as defined above and the two R's are bonded to identical positions in their phenyl rings, as are also agents which contain these fluorescent brighteners and the use of these fluorescent brighteners for the fluorescent brightening of, in particular, textile materials, preferably made of polymer. The said fluorescent brighteners are prepared by reacting terephthalaldehyde preferably with a correspondingly substituted benzylphosphonate and further reacting the resulting mixture of a correspondingly substituted 4-stilbene aldehyde and a symmetrical p-bis-styrylbenzene with a benzylphosphonate which differs from the benzylphosphonate first used.
    • 提出了一种荧光增白剂,其由51-99%的不对称取代的式(1)化合物组成,其中R和R 1相同或不同,并且如果R和R 1相同,则R1必须占据 与苯基环中R所占的位置不同的苯环,其中R和R 1彼此独立地为CN或羧酸酯基,和49-1%的对称取代的化合物 其中R如上定义并且两个R在其苯环中的相同位置键合,其中R是如上定义的,以及含有这些荧光增白剂的试剂和使用这些荧光增白剂进行荧光增白 特别是纺织材料,优选由聚合物制成。 所述荧光增白剂通过使对苯二甲醛优选与相应取代的苄基膦酸酯反应制备,并进一步使得到的相应取代的4-芪和对称的对双对苯乙烯基苯的混合物与首先使用的苄基膦酸盐不同的苄基膦酸酯反应。